1033 lines
36 KiB
C++
1033 lines
36 KiB
C++
//===- unittest/Format/FormatTest.cpp - Formatting unit tests -------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Format/Format.h"
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#include "../Tooling/RewriterTestContext.h"
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#include "clang/Lex/Lexer.h"
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#include "gtest/gtest.h"
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namespace clang {
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namespace format {
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class FormatTest : public ::testing::Test {
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protected:
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std::string format(llvm::StringRef Code, unsigned Offset, unsigned Length,
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const FormatStyle &Style) {
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RewriterTestContext Context;
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FileID ID = Context.createInMemoryFile("input.cc", Code);
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SourceLocation Start =
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Context.Sources.getLocForStartOfFile(ID).getLocWithOffset(Offset);
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std::vector<CharSourceRange> Ranges(
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1,
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CharSourceRange::getCharRange(Start, Start.getLocWithOffset(Length)));
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LangOptions LangOpts;
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LangOpts.CPlusPlus = 1;
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LangOpts.CPlusPlus11 = 1;
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Lexer Lex(ID, Context.Sources.getBuffer(ID), Context.Sources, LangOpts);
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tooling::Replacements Replace =
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reformat(Style, Lex, Context.Sources, Ranges);
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EXPECT_TRUE(applyAllReplacements(Replace, Context.Rewrite));
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return Context.getRewrittenText(ID);
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}
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std::string format(llvm::StringRef Code,
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const FormatStyle &Style = getLLVMStyle()) {
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return format(Code, 0, Code.size(), Style);
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}
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std::string messUp(llvm::StringRef Code) {
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std::string MessedUp(Code.str());
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bool InComment = false;
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bool JustReplacedNewline = false;
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for (unsigned i = 0, e = MessedUp.size() - 1; i != e; ++i) {
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if (MessedUp[i] == '/' && MessedUp[i + 1] == '/') {
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if (JustReplacedNewline)
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MessedUp[i - 1] = '\n';
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InComment = true;
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} else if (MessedUp[i] == '\\' && MessedUp[i + 1] == '\n') {
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MessedUp[i] = ' ';
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} else if (MessedUp[i] == '\n') {
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if (InComment) {
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InComment = false;
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} else {
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JustReplacedNewline = true;
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MessedUp[i] = ' ';
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}
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} else if (MessedUp[i] != ' ') {
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JustReplacedNewline = false;
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}
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}
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return MessedUp;
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}
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FormatStyle getLLVMStyleWithColumns(unsigned ColumnLimit) {
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FormatStyle Style = getLLVMStyle();
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Style.ColumnLimit = ColumnLimit;
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return Style;
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}
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void verifyFormat(llvm::StringRef Code,
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const FormatStyle &Style = getLLVMStyle()) {
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EXPECT_EQ(Code.str(), format(messUp(Code), Style));
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}
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void verifyGoogleFormat(llvm::StringRef Code) {
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verifyFormat(Code, getGoogleStyle());
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}
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};
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//===----------------------------------------------------------------------===//
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// Basic function tests.
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//===----------------------------------------------------------------------===//
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TEST_F(FormatTest, DoesNotChangeCorrectlyFormatedCode) {
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EXPECT_EQ(";", format(";"));
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}
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TEST_F(FormatTest, FormatsGlobalStatementsAt0) {
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EXPECT_EQ("int i;", format(" int i;"));
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EXPECT_EQ("\nint i;", format(" \n\t \r int i;"));
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EXPECT_EQ("int i;\nint j;", format(" int i; int j;"));
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EXPECT_EQ("int i;\nint j;", format(" int i;\n int j;"));
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}
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TEST_F(FormatTest, FormatsUnwrappedLinesAtFirstFormat) {
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EXPECT_EQ("int i;", format("int\ni;"));
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}
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TEST_F(FormatTest, FormatsNestedBlockStatements) {
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EXPECT_EQ("{\n {\n {\n }\n }\n}", format("{{{}}}"));
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}
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TEST_F(FormatTest, FormatsNestedCall) {
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verifyFormat("Method(f1, f2(f3));");
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verifyFormat("Method(f1(f2, f3()));");
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}
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//===----------------------------------------------------------------------===//
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// Tests for control statements.
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//===----------------------------------------------------------------------===//
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TEST_F(FormatTest, FormatIfWithoutCompountStatement) {
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verifyFormat("if (true)\n f();\ng();");
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verifyFormat("if (a)\n if (b)\n if (c)\n g();\nh();");
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verifyFormat("if (a)\n if (b) {\n f();\n }\ng();");
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verifyFormat("if (a)\n"
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" // comment\n"
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" f();");
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}
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TEST_F(FormatTest, ParseIfElse) {
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verifyFormat("if (true)\n"
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" if (true)\n"
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" if (true)\n"
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" f();\n"
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" else\n"
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" g();\n"
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" else\n"
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" h();\n"
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"else\n"
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" i();");
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verifyFormat("if (true)\n"
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" if (true)\n"
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" if (true) {\n"
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" if (true)\n"
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" f();\n"
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" } else {\n"
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" g();\n"
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" }\n"
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" else\n"
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" h();\n"
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"else {\n"
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" i();\n"
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"}");
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}
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TEST_F(FormatTest, ElseIf) {
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verifyFormat("if (a) {\n"
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"} else if (b) {\n"
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"}");
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verifyFormat("if (a)\n"
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" f();\n"
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"else if (b)\n"
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" g();\n"
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"else\n"
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" h();");
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}
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TEST_F(FormatTest, FormatsForLoop) {
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verifyFormat(
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"for (int VeryVeryLongLoopVariable = 0; VeryVeryLongLoopVariable < 10;\n"
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" ++VeryVeryLongLoopVariable)\n"
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" ;");
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verifyFormat("for (;;)\n"
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" f();");
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verifyFormat("for (;;) {\n"
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"}");
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verifyFormat("for (;;) {\n"
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" f();\n"
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"}");
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verifyFormat(
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"for (std::vector<UnwrappedLine>::iterator I = UnwrappedLines.begin(),\n"
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" E = UnwrappedLines.end();\n"
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" I != E; ++I) {\n}");
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verifyFormat(
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"for (MachineFun::iterator IIII = PrevIt, EEEE = F.end(); IIII != EEEE;\n"
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" ++IIIII) {\n}");
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}
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TEST_F(FormatTest, FormatsWhileLoop) {
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verifyFormat("while (true) {\n}");
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verifyFormat("while (true)\n"
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" f();");
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verifyFormat("while () {\n"
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"}");
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verifyFormat("while () {\n"
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" f();\n"
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"}");
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}
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TEST_F(FormatTest, FormatsDoWhile) {
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verifyFormat("do {\n"
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" do_something();\n"
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"} while (something());");
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verifyFormat("do\n"
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" do_something();\n"
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"while (something());");
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}
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TEST_F(FormatTest, FormatsSwitchStatement) {
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verifyFormat("switch (x) {\n"
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"case 1:\n"
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" f();\n"
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" break;\n"
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"case kFoo:\n"
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"case ns::kBar:\n"
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"case kBaz:\n"
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" break;\n"
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"default:\n"
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" g();\n"
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" break;\n"
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"}");
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verifyFormat("switch (x) {\n"
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"case 1: {\n"
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" f();\n"
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" break;\n"
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"}\n"
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"}");
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verifyFormat("switch (test)\n"
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" ;");
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verifyGoogleFormat("switch (x) {\n"
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" case 1:\n"
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" f();\n"
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" break;\n"
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" case kFoo:\n"
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" case ns::kBar:\n"
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" case kBaz:\n"
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" break;\n"
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" default:\n"
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" g();\n"
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" break;\n"
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"}");
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verifyGoogleFormat("switch (x) {\n"
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" case 1: {\n"
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" f();\n"
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" break;\n"
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" }\n"
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"}");
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verifyGoogleFormat("switch (test)\n"
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" ;");
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}
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TEST_F(FormatTest, FormatsLabels) {
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verifyFormat("void f() {\n"
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" some_code();\n"
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"test_label:\n"
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" some_other_code();\n"
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" {\n"
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" some_more_code();\n"
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" another_label:\n"
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" some_more_code();\n"
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" }\n"
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"}");
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verifyFormat("some_code();\n"
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"test_label:\n"
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"some_other_code();");
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}
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//===----------------------------------------------------------------------===//
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// Tests for comments.
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//===----------------------------------------------------------------------===//
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TEST_F(FormatTest, UnderstandsSingleLineComments) {
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verifyFormat("// line 1\n"
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"// line 2\n"
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"void f() {\n}\n");
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verifyFormat("void f() {\n"
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" // Doesn't do anything\n"
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"}");
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verifyFormat("int i // This is a fancy variable\n"
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" = 5;");
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verifyFormat("enum E {\n"
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" // comment\n"
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" VAL_A, // comment\n"
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" VAL_B\n"
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"};");
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verifyFormat(
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"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n"
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" bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; // Trailing comment");
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EXPECT_EQ("int i; // single line trailing comment",
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format("int i;\\\n// single line trailing comment"));
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verifyGoogleFormat("int a; // Trailing comment.");
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}
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TEST_F(FormatTest, UnderstandsMultiLineComments) {
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verifyFormat("f(/*test=*/ true);");
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}
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//===----------------------------------------------------------------------===//
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// Tests for classes, namespaces, etc.
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//===----------------------------------------------------------------------===//
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TEST_F(FormatTest, DoesNotBreakSemiAfterClassDecl) {
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verifyFormat("class A {\n};");
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}
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TEST_F(FormatTest, UnderstandsAccessSpecifiers) {
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verifyFormat("class A {\n"
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"public:\n"
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"protected:\n"
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"private:\n"
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" void f() {\n"
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" }\n"
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"};");
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verifyGoogleFormat("class A {\n"
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" public:\n"
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" protected:\n"
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" private:\n"
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" void f() {\n"
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" }\n"
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"};");
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}
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TEST_F(FormatTest, FormatsDerivedClass) {
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verifyFormat("class A : public B {\n"
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"};");
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verifyFormat("class A : public ::B {\n"
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"};");
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}
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TEST_F(FormatTest, FormatsEnum) {
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verifyFormat("enum {\n"
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" Zero,\n"
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" One = 1,\n"
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" Two = One + 1,\n"
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" Three = (One + Two),\n"
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" Four = (Zero && (One ^ Two)) | (One << Two),\n"
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" Five = (One, Two, Three, Four, 5)\n"
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"};");
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verifyFormat("enum Enum {\n"
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"};");
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verifyFormat("enum {\n"
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"};");
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}
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TEST_F(FormatTest, FormatsNamespaces) {
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verifyFormat("namespace some_namespace {\n"
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"class A {\n"
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"};\n"
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"void f() {\n"
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" f();\n"
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"}\n"
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"}");
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verifyFormat("namespace {\n"
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"class A {\n"
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"};\n"
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"void f() {\n"
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" f();\n"
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"}\n"
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"}");
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verifyFormat("inline namespace X {\n"
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"class A {\n"
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"};\n"
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"void f() {\n"
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" f();\n"
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"}\n"
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"}");
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verifyFormat("using namespace some_namespace;\n"
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"class A {\n"
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"};\n"
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"void f() {\n"
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" f();\n"
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"}");
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}
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TEST_F(FormatTest, StaticInitializers) {
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verifyFormat("static SomeClass SC = { 1, 'a' };");
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// FIXME: Format like enums if the static initializer does not fit on a line.
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verifyFormat(
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"static SomeClass WithALoooooooooooooooooooongName = {\n"
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" 100000000, \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" };");
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}
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TEST_F(FormatTest, FormatsSmallMacroDefinitionsInSingleLine) {
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verifyFormat("#define ALooooooooooooooooooooooooooooooooooooooongMacro("
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" \\\n"
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" aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)");
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}
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TEST_F(FormatTest, DoesNotBreakPureVirtualFunctionDefinition) {
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verifyFormat(
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"virtual void write(ELFWriter *writerrr,\n"
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" OwningPtr<FileOutputBuffer> &buffer) = 0;");
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}
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TEST_F(FormatTest, BreaksOnHashWhenDirectiveIsInvalid) {
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EXPECT_EQ("#\n;", format("#;"));
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verifyFormat("#\n;\n;\n;");
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}
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TEST_F(FormatTest, UnescapedEndOfLineEndsPPDirective) {
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EXPECT_EQ("#line 42 \"test\"\n",
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format("# \\\n line \\\n 42 \\\n \"test\"\n"));
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EXPECT_EQ("#define A \\\n B\n",
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format("# \\\n define \\\n A \\\n B\n",
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getLLVMStyleWithColumns(12)));
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}
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TEST_F(FormatTest, EndOfFileEndsPPDirective) {
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EXPECT_EQ("#line 42 \"test\"",
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format("# \\\n line \\\n 42 \\\n \"test\""));
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EXPECT_EQ("#define A \\\n B",
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format("# \\\n define \\\n A \\\n B",
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getLLVMStyleWithColumns(12)));
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}
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TEST_F(FormatTest, IndentsPPDirectiveInReducedSpace) {
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// If the macro fits in one line, we still do not get the full
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// line, as only the next line decides whether we need an escaped newline and
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// thus use the last column.
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verifyFormat("#define A(B)", getLLVMStyleWithColumns(13));
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verifyFormat("#define A( \\\n B)", getLLVMStyleWithColumns(12));
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verifyFormat("#define AA(\\\n B)", getLLVMStyleWithColumns(12));
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verifyFormat("#define A( \\\n A, B)", getLLVMStyleWithColumns(12));
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}
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TEST_F(FormatTest, HandlePreprocessorDirectiveContext) {
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EXPECT_EQ("// some comment\n"
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"#include \"a.h\"\n"
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"#define A(A,\\\n"
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" B)\n"
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"#include \"b.h\"\n"
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"// some comment\n",
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format(" // some comment\n"
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" #include \"a.h\"\n"
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"#define A(A,\\\n"
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" B)\n"
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" #include \"b.h\"\n"
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" // some comment\n", getLLVMStyleWithColumns(13)));
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}
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TEST_F(FormatTest, LayoutSingleHash) {
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EXPECT_EQ("#\na;", format("#\na;"));
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}
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TEST_F(FormatTest, LayoutCodeInMacroDefinitions) {
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EXPECT_EQ("#define A \\\n"
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" c; \\\n"
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" e;\n"
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"f;", format("#define A c; e;\n"
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"f;", getLLVMStyleWithColumns(14)));
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}
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TEST_F(FormatTest, LayoutRemainingTokens) {
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EXPECT_EQ("{\n}", format("{}"));
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}
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TEST_F(FormatTest, LayoutSingleUnwrappedLineInMacro) {
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EXPECT_EQ("#define A \\\n b;",
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format("#define A b;", 10, 2, getLLVMStyleWithColumns(11)));
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}
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TEST_F(FormatTest, MacroDefinitionInsideStatement) {
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EXPECT_EQ("int x,\n#define A\ny;", format("int x,\n#define A\ny;"));
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}
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TEST_F(FormatTest, HashInMacroDefinition) {
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verifyFormat("#define A \\\n b #c;", getLLVMStyleWithColumns(11));
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verifyFormat("#define A \\\n"
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" { \\\n"
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" f(#c);\\\n"
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" }", getLLVMStyleWithColumns(11));
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}
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TEST_F(FormatTest, IndentPreprocessorDirectivesAtZero) {
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EXPECT_EQ("{\n {\n#define A\n }\n}", format("{{\n#define A\n}}"));
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}
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TEST_F(FormatTest, FormatHashIfNotAtStartOfLine) {
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verifyFormat("{\n {\n a #c;\n }\n}");
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}
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TEST_F(FormatTest, FormatUnbalancedStructuralElements) {
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EXPECT_EQ("#define A \\\n { \\\n {\nint i;",
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format("#define A { {\nint i;", getLLVMStyleWithColumns(11)));
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EXPECT_EQ("#define A \\\n } \\\n }\nint i;",
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format("#define A } }\nint i;", getLLVMStyleWithColumns(11)));
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}
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TEST_F(FormatTest, EscapedNewlineAtStartOfTokenInMacroDefinition) {
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EXPECT_EQ("#define A \\\n int i; \\\n int j;",
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format("#define A \\\nint i;\\\n int j;",
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getLLVMStyleWithColumns(11)));
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}
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TEST_F(FormatTest, CalculateSpaceOnConsecutiveLinesInMacro) {
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verifyFormat("#define A \\\n"
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" int v( \\\n"
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" a); \\\n"
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" int i;", getLLVMStyleWithColumns(11));
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}
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TEST_F(FormatTest, MixingPreprocessorDirectivesAndNormalCode) {
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EXPECT_EQ(
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"#define ALooooooooooooooooooooooooooooooooooooooongMacro("
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" \\\n"
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" aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n"
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"\n"
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"AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n"
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" aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n",
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format(" #define ALooooooooooooooooooooooooooooooooooooooongMacro("
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"\\\n"
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"aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n"
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" \n"
|
|
" AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n"
|
|
" aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n"));
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Line break tests.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
TEST_F(FormatTest, FormatsFunctionDefinition) {
|
|
verifyFormat("void f(int a, int b, int c, int d, int e, int f, int g,"
|
|
" int h, int j, int f,\n"
|
|
" int c, int ddddddddddddd) {\n"
|
|
"}");
|
|
}
|
|
|
|
TEST_F(FormatTest, FormatsAwesomeMethodCall) {
|
|
verifyFormat(
|
|
"SomeLongMethodName(SomeReallyLongMethod(\n"
|
|
" CallOtherReallyLongMethod(parameter, parameter, parameter)),\n"
|
|
" SecondLongCall(parameter));");
|
|
}
|
|
|
|
TEST_F(FormatTest, ConstructorInitializers) {
|
|
verifyFormat("Constructor() : Initializer(FitsOnTheLine) {\n}");
|
|
|
|
verifyFormat(
|
|
"SomeClass::Constructor()\n"
|
|
" : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {\n"
|
|
"}");
|
|
|
|
verifyFormat(
|
|
"SomeClass::Constructor()\n"
|
|
" : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
|
|
" aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {\n"
|
|
"}");
|
|
|
|
verifyFormat("Constructor()\n"
|
|
" : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaa() {\n"
|
|
"}");
|
|
|
|
// Here a line could be saved by splitting the second initializer onto two
|
|
// lines, but that is not desireable.
|
|
verifyFormat("Constructor()\n"
|
|
" : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaa),\n"
|
|
" aaaaaaaaaaa(aaaaaaaaaaa),\n"
|
|
" aaaaaaaaaaaaaaaaaaaaat(aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n"
|
|
"}");
|
|
|
|
verifyGoogleFormat("MyClass::MyClass(int var)\n"
|
|
" : some_var_(var), // 4 space indent\n"
|
|
" some_other_var_(var + 1) { // lined up\n"
|
|
"}");
|
|
}
|
|
|
|
TEST_F(FormatTest, BreaksAsHighAsPossible) {
|
|
verifyFormat(
|
|
"if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa && aaaaaaaaaaaaaaaaaaaaaaaaaa) ||\n"
|
|
" (bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb && bbbbbbbbbbbbbbbbbbbbbbbbbb))\n"
|
|
" f();");
|
|
}
|
|
|
|
TEST_F(FormatTest, BreaksDesireably) {
|
|
verifyFormat("if (aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n"
|
|
" aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n"
|
|
" aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa)) {\n};");
|
|
|
|
verifyFormat(
|
|
"aaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}");
|
|
|
|
verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));");
|
|
|
|
verifyFormat(
|
|
"aaaaaaaa(aaaaaaaaaaaaa, aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n"
|
|
" aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));");
|
|
|
|
verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n"
|
|
" (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
|
|
|
|
verifyFormat(
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
|
|
|
|
// This test case breaks on an incorrect memoization, i.e. an optimization not
|
|
// taking into account the StopAt value.
|
|
verifyFormat(
|
|
"return aaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n"
|
|
" aaaaaaaaaaa(aaaaaaaaa) || aaaaaaaaaaaaaaaaaaaaaaa ||\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n"
|
|
" (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
|
|
|
|
verifyFormat(
|
|
"{\n {\n {\n"
|
|
" Annotation.SpaceRequiredBefore =\n"
|
|
" Line.Tokens[i - 1].Tok.isNot(tok::l_paren) &&\n"
|
|
" Line.Tokens[i - 1].Tok.isNot(tok::l_square);\n"
|
|
" }\n }\n}");
|
|
}
|
|
|
|
TEST_F(FormatTest, BreaksAccordingToOperatorPrecedence) {
|
|
verifyFormat(
|
|
"if (aaaaaaaaaaaaaaaaaaaaaaaaa ||\n"
|
|
" bbbbbbbbbbbbbbbbbbbbbbbbb && ccccccccccccccccccccccccc) {\n}");
|
|
verifyFormat(
|
|
"if (aaaaaaaaaaaaaaaaaaaaaaaaa && bbbbbbbbbbbbbbbbbbbbbbbbb ||\n"
|
|
" ccccccccccccccccccccccccc) {\n}");
|
|
verifyFormat(
|
|
"if (aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb ||\n"
|
|
" ccccccccccccccccccccccccc) {\n}");
|
|
verifyFormat(
|
|
"if ((aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb) &&\n"
|
|
" ccccccccccccccccccccccccc) {\n}");
|
|
}
|
|
|
|
TEST_F(FormatTest, PrefersNotToBreakAfterAssignments) {
|
|
verifyFormat(
|
|
"unsigned Cost = TTI.getMemoryOpCost(I->getOpcode(), VectorTy,\n"
|
|
" SI->getAlignment(),\n"
|
|
" SI->getPointerAddressSpaceee());\n");
|
|
verifyFormat(
|
|
"CharSourceRange LineRange = CharSourceRange::getTokenRange(\n"
|
|
" Line.Tokens.front().Tok.getLocation(),\n"
|
|
" Line.Tokens.back().Tok.getLocation());");
|
|
}
|
|
|
|
TEST_F(FormatTest, AlignsAfterAssignments) {
|
|
verifyFormat(
|
|
"int Result = aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaa;");
|
|
verifyFormat(
|
|
"Result += aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaa;");
|
|
verifyFormat(
|
|
"Result >>= aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaa;");
|
|
verifyFormat(
|
|
"int Result = (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaa);");
|
|
verifyFormat(
|
|
"double LooooooooooooooooooooooooongResult = aaaaaaaaaaaaaaaaaaaaaaaa +\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaa +\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaa;");
|
|
}
|
|
|
|
TEST_F(FormatTest, AlignsAfterReturn) {
|
|
verifyFormat(
|
|
"return aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaa;");
|
|
verifyFormat(
|
|
"return (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaa);");
|
|
}
|
|
|
|
TEST_F(FormatTest, AlignsStringLiterals) {
|
|
verifyFormat("loooooooooooooooooooooooooongFunction(\"short literal \"\n"
|
|
" \"short literal\");");
|
|
verifyFormat(
|
|
"looooooooooooooooooooooooongFunction(\n"
|
|
" \"short literal\"\n"
|
|
" \"looooooooooooooooooooooooooooooooooooooooooooooooong literal\");");
|
|
}
|
|
|
|
TEST_F(FormatTest, AlignsPipes) {
|
|
verifyFormat(
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
|
|
" << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
|
|
" << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
|
|
verifyFormat(
|
|
"aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa\n"
|
|
" << aaaaaaaaaaaaaaaaaaaa;");
|
|
verifyFormat(
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
|
|
" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
|
|
verifyFormat(
|
|
"llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"\n"
|
|
" \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\"\n"
|
|
" << \"ccccccccccccccccccccccccccccccccccccccccccccccccc\";");
|
|
verifyFormat(
|
|
"aaaaaaaa << (aaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
|
|
" << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
|
|
" << aaaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
|
|
}
|
|
|
|
TEST_F(FormatTest, UnderstandsEquals) {
|
|
verifyFormat(
|
|
"aaaaaaaaaaaaaaaaa =\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
|
|
verifyFormat(
|
|
"if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n"
|
|
"}");
|
|
verifyFormat(
|
|
"if (a) {\n"
|
|
"} else if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n"
|
|
"}");
|
|
|
|
verifyFormat(
|
|
"if (int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa = 100000000 +\n"
|
|
" 10000000) {\n"
|
|
"}");
|
|
}
|
|
|
|
TEST_F(FormatTest, WrapsAtFunctionCallsIfNecessary) {
|
|
verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n"
|
|
" .looooooooooooooooooooooooooooooooooooooongFunction();");
|
|
|
|
verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n"
|
|
" ->looooooooooooooooooooooooooooooooooooooongFunction();");
|
|
|
|
verifyFormat(
|
|
"LooooooooooooooooooooooooooooooooongObject->shortFunction(Parameter1,\n"
|
|
" Parameter2);");
|
|
|
|
verifyFormat(
|
|
"ShortObject->shortFunction(\n"
|
|
" LooooooooooooooooooooooooooooooooooooooooooooooongParameter1,\n"
|
|
" LooooooooooooooooooooooooooooooooooooooooooooooongParameter2);");
|
|
|
|
verifyFormat("loooooooooooooongFunction(\n"
|
|
" LoooooooooooooongObject->looooooooooooooooongFunction());");
|
|
|
|
verifyFormat(
|
|
"function(LoooooooooooooooooooooooooooooooooooongObject\n"
|
|
" ->loooooooooooooooooooooooooooooooooooooooongFunction());");
|
|
|
|
// Here, it is not necessary to wrap at "." or "->".
|
|
verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaa) ||\n"
|
|
" aaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n"
|
|
"}");
|
|
verifyFormat(
|
|
"aaaaaaaaaaa->aaaaaaaaa(\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaa,\n"
|
|
" aaaaaaaaaaaaaaaaaa->aaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa));\n");
|
|
}
|
|
|
|
TEST_F(FormatTest, WrapsTemplateDeclarations) {
|
|
verifyFormat("template <typename T>\n"
|
|
"virtual void loooooooooooongFunction(int Param1, int Param2);");
|
|
verifyFormat(
|
|
"template <typename T> void f(int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram1,\n"
|
|
" int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram2);");
|
|
verifyFormat(
|
|
"template <typename T>\n"
|
|
"void looooooooooooooooooooongFunction(int Paaaaaaaaaaaaaaaaaaaaram1,\n"
|
|
" int Paaaaaaaaaaaaaaaaaaaaram2);");
|
|
verifyFormat(
|
|
"template <typename T>\n"
|
|
"aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaa,\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaaaaa,\n"
|
|
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
|
|
|
|
}
|
|
|
|
TEST_F(FormatTest, UnderstandsTemplateParameters) {
|
|
verifyFormat("A<int> a;");
|
|
verifyFormat("A<A<A<int> > > a;");
|
|
verifyFormat("A<A<A<int, 2>, 3>, 4> a;");
|
|
verifyFormat("bool x = a < 1 || 2 > a;");
|
|
verifyFormat("bool x = 5 < f<int>();");
|
|
verifyFormat("bool x = f<int>() > 5;");
|
|
verifyFormat("bool x = 5 < a<int>::x;");
|
|
verifyFormat("bool x = a < 4 ? a > 2 : false;");
|
|
verifyFormat("bool x = f() ? a < 2 : a > 2;");
|
|
|
|
verifyGoogleFormat("A<A<int>> a;");
|
|
verifyGoogleFormat("A<A<A<int>>> a;");
|
|
verifyGoogleFormat("A<A<A<A<int>>>> a;");
|
|
|
|
verifyFormat("test >> a >> b;");
|
|
verifyFormat("test << a >> b;");
|
|
|
|
verifyFormat("f<int>();");
|
|
verifyFormat("template <typename T> void f() {\n}");
|
|
}
|
|
|
|
TEST_F(FormatTest, UnderstandsUnaryOperators) {
|
|
verifyFormat("int a = -2;");
|
|
verifyFormat("f(-1, -2, -3);");
|
|
verifyFormat("a[-1] = 5;");
|
|
verifyFormat("int a = 5 + -2;");
|
|
verifyFormat("if (i == -1) {\n}");
|
|
verifyFormat("if (i != -1) {\n}");
|
|
verifyFormat("if (i > -1) {\n}");
|
|
verifyFormat("if (i < -1) {\n}");
|
|
verifyFormat("++(a->f());");
|
|
verifyFormat("--(a->f());");
|
|
verifyFormat("if (!(a->f())) {\n}");
|
|
|
|
verifyFormat("a-- > b;");
|
|
verifyFormat("b ? -a : c;");
|
|
verifyFormat("n * sizeof char16;");
|
|
verifyFormat("n * alignof char16;");
|
|
verifyFormat("sizeof(char);");
|
|
verifyFormat("alignof(char);");
|
|
|
|
verifyFormat("return -1;");
|
|
verifyFormat("switch (a) {\n"
|
|
"case -1:\n"
|
|
" break;\n"
|
|
"}");
|
|
}
|
|
|
|
TEST_F(FormatTest, UndestandsOverloadedOperators) {
|
|
verifyFormat("bool operator<();");
|
|
verifyFormat("bool operator>();");
|
|
verifyFormat("bool operator=();");
|
|
verifyFormat("bool operator==();");
|
|
verifyFormat("bool operator!=();");
|
|
verifyFormat("int operator+();");
|
|
verifyFormat("int operator++();");
|
|
verifyFormat("bool operator();");
|
|
verifyFormat("bool operator()();");
|
|
verifyFormat("bool operator[]();");
|
|
verifyFormat("operator bool();");
|
|
verifyFormat("operator SomeType<int>();");
|
|
verifyFormat("void *operator new(std::size_t size);");
|
|
verifyFormat("void *operator new[](std::size_t size);");
|
|
verifyFormat("void operator delete(void *ptr);");
|
|
verifyFormat("void operator delete[](void *ptr);");
|
|
}
|
|
|
|
TEST_F(FormatTest, UnderstandsUsesOfStarAndAmp) {
|
|
verifyFormat("int *f(int *a) {\n}");
|
|
verifyFormat("f(a, *a);");
|
|
verifyFormat("f(*a);");
|
|
verifyFormat("int a = b * 10;");
|
|
verifyFormat("int a = 10 * b;");
|
|
verifyFormat("int a = b * c;");
|
|
verifyFormat("int a += b * c;");
|
|
verifyFormat("int a -= b * c;");
|
|
verifyFormat("int a *= b * c;");
|
|
verifyFormat("int a /= b * c;");
|
|
verifyFormat("int a = *b;");
|
|
verifyFormat("int a = *b * c;");
|
|
verifyFormat("int a = b * *c;");
|
|
verifyFormat("int main(int argc, char **argv) {\n}");
|
|
verifyFormat("return 10 * b;");
|
|
verifyFormat("return *b * *c;");
|
|
verifyFormat("return a & ~b;");
|
|
verifyFormat("f(b ? *c : *d);");
|
|
verifyFormat("int a = b ? *c : *d;");
|
|
verifyFormat("*b = a;");
|
|
verifyFormat("a * ~b;");
|
|
verifyFormat("a * !b;");
|
|
verifyFormat("a * +b;");
|
|
verifyFormat("a * -b;");
|
|
verifyFormat("a * ++b;");
|
|
verifyFormat("a * --b;");
|
|
|
|
verifyFormat("InvalidRegions[*R] = 0;");
|
|
|
|
// FIXME: Is this desired for LLVM? Fix if not.
|
|
verifyFormat("A<int *> a;");
|
|
verifyFormat("A<int **> a;");
|
|
verifyFormat("A<int *, int *> a;");
|
|
verifyFormat("A<int **, int **> a;");
|
|
verifyFormat("Type *A = static_cast<Type *>(P);");
|
|
verifyFormat("Type *A = (Type *) P;");
|
|
verifyFormat("Type *A = (vector<Type *, int *>) P;");
|
|
|
|
verifyGoogleFormat("int main(int argc, char** argv) {\n}");
|
|
verifyGoogleFormat("A<int*> a;");
|
|
verifyGoogleFormat("A<int**> a;");
|
|
verifyGoogleFormat("A<int*, int*> a;");
|
|
verifyGoogleFormat("A<int**, int**> a;");
|
|
verifyGoogleFormat("f(b ? *c : *d);");
|
|
verifyGoogleFormat("int a = b ? *c : *d;");
|
|
}
|
|
|
|
TEST_F(FormatTest, DoesNotBreakBeforePointerOrReference) {
|
|
verifyFormat(
|
|
"int *someFunction(int LoooooooooooooooongParam1,\n"
|
|
" int LoooooooooooooooongParam2) {\n}");
|
|
verifyFormat(
|
|
"TypeSpecDecl *TypeSpecDecl::Create(ASTContext &C, DeclContext *DC,\n"
|
|
" SourceLocation L, IdentifierIn *II,\n"
|
|
" Type *T) {\n}");
|
|
}
|
|
|
|
TEST_F(FormatTest, LineStartsWithSpecialCharacter) {
|
|
verifyFormat("(a)->b();");
|
|
verifyFormat("--a;");
|
|
}
|
|
|
|
TEST_F(FormatTest, HandlesIncludeDirectives) {
|
|
EXPECT_EQ("#include <string>\n", format("#include <string>\n"));
|
|
EXPECT_EQ("#include <a/b/c.h>\n", format("#include <a/b/c.h>\n"));
|
|
EXPECT_EQ("#include \"a/b/string\"\n", format("#include \"a/b/string\"\n"));
|
|
EXPECT_EQ("#include \"string.h\"\n", format("#include \"string.h\"\n"));
|
|
EXPECT_EQ("#include \"string.h\"\n", format("#include \"string.h\"\n"));
|
|
|
|
EXPECT_EQ("#import <string>\n", format("#import <string>\n"));
|
|
EXPECT_EQ("#import <a/b/c.h>\n", format("#import <a/b/c.h>\n"));
|
|
EXPECT_EQ("#import \"a/b/string\"\n", format("#import \"a/b/string\"\n"));
|
|
EXPECT_EQ("#import \"string.h\"\n", format("#import \"string.h\"\n"));
|
|
EXPECT_EQ("#import \"string.h\"\n", format("#import \"string.h\"\n"));
|
|
}
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Error recovery tests.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
TEST_F(FormatTest, IncorrectAccessSpecifier) {
|
|
verifyFormat("public:");
|
|
verifyFormat("class A {\n"
|
|
"public\n"
|
|
" void f() {\n"
|
|
" }\n"
|
|
"};");
|
|
verifyFormat("public\n"
|
|
"int qwerty;");
|
|
verifyFormat("public\n"
|
|
"B {\n"
|
|
"};");
|
|
verifyFormat("public\n"
|
|
"{\n"
|
|
"};");
|
|
verifyFormat("public\n"
|
|
"B {\n"
|
|
" int x;\n"
|
|
"};");
|
|
}
|
|
|
|
TEST_F(FormatTest, IncorrectCodeUnbalancedBraces) {
|
|
verifyFormat("{");
|
|
}
|
|
|
|
TEST_F(FormatTest, IncorrectCodeDoNoWhile) {
|
|
verifyFormat("do {\n"
|
|
"};");
|
|
verifyFormat("do {\n"
|
|
"};\n"
|
|
"f();");
|
|
verifyFormat("do {\n"
|
|
"}\n"
|
|
"wheeee(fun);");
|
|
verifyFormat("do {\n"
|
|
" f();\n"
|
|
"};");
|
|
}
|
|
|
|
TEST_F(FormatTest, DoesNotTouchUnwrappedLinesWithErrors) {
|
|
verifyFormat("namespace {\n"
|
|
"class Foo { Foo ( }; } // comment");
|
|
}
|
|
|
|
TEST_F(FormatTest, IncorrectCodeErrorDetection) {
|
|
EXPECT_EQ("{\n{\n}\n", format("{\n{\n}\n"));
|
|
EXPECT_EQ("{\n {\n}\n", format("{\n {\n}\n"));
|
|
EXPECT_EQ("{\n {\n }\n", format("{\n {\n }\n"));
|
|
EXPECT_EQ("{\n {\n }\n }\n}\n", format("{\n {\n }\n }\n}\n"));
|
|
|
|
FormatStyle Style = getLLVMStyle();
|
|
Style.ColumnLimit = 10;
|
|
EXPECT_EQ("{\n"
|
|
" {\n"
|
|
" breakme(\n"
|
|
" qwe);\n"
|
|
"}\n", format("{\n"
|
|
" {\n"
|
|
" breakme(qwe);\n"
|
|
"}\n", Style));
|
|
|
|
}
|
|
|
|
TEST_F(FormatTest, FormatForObjectiveCMethodDecls) {
|
|
verifyFormat("- (void)sendAction:(SEL)aSelector to:(BOOL)anObject;");
|
|
EXPECT_EQ("- (NSUInteger)indexOfObject:(id)anObject;",
|
|
format("-(NSUInteger)indexOfObject:(id)anObject;"));
|
|
EXPECT_EQ("- (NSInteger)Mthod1;",
|
|
format("-(NSInteger)Mthod1;"));
|
|
EXPECT_EQ("+ (id)Mthod2;", format("+(id)Mthod2;"));
|
|
EXPECT_EQ("- (NSInteger)Method3:(id)anObject;",
|
|
format("-(NSInteger)Method3:(id)anObject;"));
|
|
EXPECT_EQ("- (NSInteger)Method4:(id)anObject;",
|
|
format("-(NSInteger)Method4:(id)anObject;"));
|
|
EXPECT_EQ("- (NSInteger)Method5:(id)anObject:(id)AnotherObject;",
|
|
format("-(NSInteger)Method5:(id)anObject:(id)AnotherObject;"));
|
|
EXPECT_EQ("- (id)Method6:(id)A:(id)B:(id)C:(id)D;",
|
|
format("- (id)Method6:(id)A:(id)B:(id)C:(id)D;"));
|
|
EXPECT_EQ("- (void)sendAction:(SEL)aSelector to:(id)anObject forAllCells:(BOOL)flag;",
|
|
format("- (void)sendAction:(SEL)aSelector to:(id)anObject forAllCells:(BOOL)flag;"));
|
|
|
|
// Very long objectiveC method declaration.
|
|
EXPECT_EQ("- (NSUInteger)indexOfObject:(id)anObject inRange:(NSRange)range\n "
|
|
"outRange:(NSRange)out_range outRange1:(NSRange)out_range1\n "
|
|
"outRange2:(NSRange)out_range2 outRange3:(NSRange)out_range3\n "
|
|
"outRange4:(NSRange)out_range4 outRange5:(NSRange)out_range5\n "
|
|
"outRange6:(NSRange)out_range6 outRange7:(NSRange)out_range7\n "
|
|
"outRange8:(NSRange)out_range8 outRange9:(NSRange)out_range9;",
|
|
|
|
format("- (NSUInteger)indexOfObject:(id)anObject inRange:(NSRange)range "
|
|
"outRange:(NSRange) out_range outRange1:(NSRange) out_range1 "
|
|
"outRange2:(NSRange) out_range2 outRange3:(NSRange) out_range3 "
|
|
"outRange4:(NSRange) out_range4 outRange5:(NSRange) out_range5 "
|
|
"outRange6:(NSRange) out_range6 outRange7:(NSRange) out_range7 "
|
|
"outRange8:(NSRange) out_range8 outRange9:(NSRange) out_range9;"));
|
|
}
|
|
|
|
} // end namespace tooling
|
|
} // end namespace clang
|