609 lines
18 KiB
C++
609 lines
18 KiB
C++
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//===- unittest/Format/FormatTestSelective.cpp - Formatting unit tests ----===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "FormatTestUtils.h"
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#include "clang/Format/Format.h"
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#include "llvm/Support/Debug.h"
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#include "gtest/gtest.h"
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#define DEBUG_TYPE "format-test"
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namespace clang {
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namespace format {
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namespace {
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class FormatTestSelective : 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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LLVM_DEBUG(llvm::errs() << "---\n");
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LLVM_DEBUG(llvm::errs() << Code << "\n\n");
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std::vector<tooling::Range> Ranges(1, tooling::Range(Offset, Length));
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FormattingAttemptStatus Status;
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tooling::Replacements Replaces =
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reformat(Style, Code, Ranges, "<stdin>", &Status);
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EXPECT_TRUE(Status.FormatComplete) << Code << "\n\n";
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auto Result = applyAllReplacements(Code, Replaces);
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EXPECT_TRUE(static_cast<bool>(Result));
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LLVM_DEBUG(llvm::errs() << "\n" << *Result << "\n\n");
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return *Result;
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}
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FormatStyle Style = getLLVMStyle();
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};
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TEST_F(FormatTestSelective, RemovesTrailingWhitespaceOfFormattedLine) {
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EXPECT_EQ("int a;\nint b;", format("int a; \nint b;", 0, 0));
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EXPECT_EQ("int a;", format("int a; ", 0, 0));
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EXPECT_EQ("int a;\n", format("int a; \n \n \n ", 0, 0));
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EXPECT_EQ("int a;\nint b; ", format("int a; \nint b; ", 0, 0));
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}
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TEST_F(FormatTestSelective, FormatsCorrectRegionForLeadingWhitespace) {
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EXPECT_EQ("{int b;\n"
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" int a;\n"
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"}",
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format("{int b;\n int a;}", 8, 0));
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EXPECT_EQ("{\n"
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" int b;\n"
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" int a;}",
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format("{int b;\n int a;}", 7, 0));
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Style.ColumnLimit = 12;
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EXPECT_EQ("#define A \\\n"
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" int a; \\\n"
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" int b;",
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format("#define A \\\n"
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" int a; \\\n"
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" int b;",
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26, 0));
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EXPECT_EQ("#define A \\\n"
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" int a; \\\n"
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" int b;",
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format("#define A \\\n"
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" int a; \\\n"
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" int b;",
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25, 0));
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}
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TEST_F(FormatTestSelective, FormatLineWhenInvokedOnTrailingNewline) {
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EXPECT_EQ("int b;\n\nint a;", format("int b;\n\nint a;", 8, 0));
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EXPECT_EQ("int b;\n\nint a;", format("int b;\n\nint a;", 7, 0));
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// This might not strictly be correct, but is likely good in all practical
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// cases.
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EXPECT_EQ("int b;\nint a;", format("int b;int a;", 7, 0));
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}
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TEST_F(FormatTestSelective, RemovesWhitespaceWhenTriggeredOnEmptyLine) {
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EXPECT_EQ("int a;\n\n int b;", format("int a;\n \n\n int b;", 8, 0));
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EXPECT_EQ("int a;\n\n int b;", format("int a;\n \n\n int b;", 9, 0));
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}
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TEST_F(FormatTestSelective, ReformatsMovedLines) {
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EXPECT_EQ(
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"template <typename T> T *getFETokenInfo() const {\n"
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" return static_cast<T *>(FETokenInfo);\n"
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"}\n"
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"int a; // <- Should not be formatted",
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format(
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"template<typename T>\n"
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"T *getFETokenInfo() const { return static_cast<T*>(FETokenInfo); }\n"
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"int a; // <- Should not be formatted",
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9, 5));
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}
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TEST_F(FormatTestSelective, FormatsIfWithoutCompoundStatement) {
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Style.AllowShortIfStatementsOnASingleLine = FormatStyle::SIS_WithoutElse;
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EXPECT_EQ("if (a) return;", format("if(a)\nreturn;", 7, 1));
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EXPECT_EQ("if (a) return; // comment",
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format("if(a)\nreturn; // comment", 20, 1));
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}
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TEST_F(FormatTestSelective, FormatsCommentsLocally) {
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EXPECT_EQ("int a; // comment\n"
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"int b; // comment",
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format("int a; // comment\n"
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"int b; // comment",
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0, 0));
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EXPECT_EQ("int a; // comment\n"
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" // line 2\n"
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"int b;",
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format("int a; // comment\n"
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" // line 2\n"
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"int b;",
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28, 0));
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EXPECT_EQ("int a; // comment\n"
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"// comment 2\n"
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"int b;",
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format("int a; // comment\n"
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"// comment 2\n"
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"int b;",
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28, 0));
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EXPECT_EQ("int aaaaaa; // comment\n"
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"int b;\n"
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"int c; // unrelated comment",
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format("int aaaaaa; // comment\n"
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"int b;\n"
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"int c; // unrelated comment",
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31, 0));
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EXPECT_EQ("int a; // This\n"
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" // is\n"
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" // a",
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format("int a; // This\n"
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" // is\n"
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" // a",
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0, 0));
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EXPECT_EQ("int a; // This\n"
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" // is\n"
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" // a\n"
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"// This is b\n"
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"int b;",
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format("int a; // This\n"
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" // is\n"
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" // a\n"
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"// This is b\n"
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"int b;",
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0, 0));
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EXPECT_EQ("int a; // This\n"
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" // is\n"
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" // a\n"
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"\n"
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"//This is unrelated",
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format("int a; // This\n"
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" // is\n"
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" // a\n"
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"\n"
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"//This is unrelated",
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0, 0));
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EXPECT_EQ("int a;\n"
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"// This is\n"
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"// not formatted. ",
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format("int a;\n"
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"// This is\n"
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"// not formatted. ",
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0, 0));
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EXPECT_EQ("int x; // Format this line.\n"
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"int xx; //\n"
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"int xxxxx; //",
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format("int x; // Format this line.\n"
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"int xx; //\n"
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"int xxxxx; //",
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0, 0));
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}
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TEST_F(FormatTestSelective, ContinueReindenting) {
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// When we change an indent, we continue formatting as long as following
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// lines are not indented correctly.
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EXPECT_EQ("int i;\n"
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"int b;\n"
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"int c;\n"
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"int d;\n"
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"int e;\n"
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" int f;\n",
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format("int i;\n"
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" int b;\n"
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" int c;\n"
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" int d;\n"
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"int e;\n"
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" int f;\n",
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11, 0));
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}
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TEST_F(FormatTestSelective, ReindentClosingBrace) {
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EXPECT_EQ("int i;\n"
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"int f() {\n"
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" int a;\n"
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" int b;\n"
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"}\n"
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" int c;\n",
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format("int i;\n"
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" int f(){\n"
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"int a;\n"
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"int b;\n"
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" }\n"
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" int c;\n",
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11, 0));
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EXPECT_EQ("void f() {\n"
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" if (foo) {\n"
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" b();\n"
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" } else {\n"
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" c();\n"
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" }\n"
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"int d;\n"
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"}\n",
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format("void f() {\n"
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" if (foo) {\n"
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"b();\n"
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"}else{\n"
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"c();\n"
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"}\n"
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"int d;\n"
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"}\n",
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13, 0));
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EXPECT_EQ("int i = []() {\n"
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" class C {\n"
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" int a;\n"
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" int b;\n"
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" };\n"
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" int c;\n"
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"};\n",
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format("int i = []() {\n"
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" class C{\n"
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"int a;\n"
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"int b;\n"
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"};\n"
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"int c;\n"
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" };\n",
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17, 0));
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}
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TEST_F(FormatTestSelective, IndividualStatementsOfNestedBlocks) {
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EXPECT_EQ("DEBUG({\n"
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" int i;\n"
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" int j;\n"
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"});",
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format("DEBUG( {\n"
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" int i;\n"
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" int j;\n"
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"} ) ;",
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20, 1));
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EXPECT_EQ("DEBUG( {\n"
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" int i;\n"
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" int j;\n"
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"} ) ;",
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format("DEBUG( {\n"
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" int i;\n"
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" int j;\n"
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"} ) ;",
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41, 1));
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EXPECT_EQ("DEBUG( {\n"
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" int i;\n"
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" int j;\n"
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"} ) ;",
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format("DEBUG( {\n"
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" int i;\n"
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" int j;\n"
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"} ) ;",
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41, 1));
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EXPECT_EQ("DEBUG({\n"
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" int i;\n"
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" int j;\n"
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"});",
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format("DEBUG( {\n"
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" int i;\n"
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" int j;\n"
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"} ) ;",
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20, 1));
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EXPECT_EQ("Debug({\n"
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" if (aaaaaaaaaaaaaaaaaaaaaaaa)\n"
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" return;\n"
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" },\n"
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" a);",
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format("Debug({\n"
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" if (aaaaaaaaaaaaaaaaaaaaaaaa)\n"
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" return;\n"
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" },\n"
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" a);",
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50, 1));
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EXPECT_EQ("DEBUG({\n"
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" DEBUG({\n"
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" int a;\n"
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" int b;\n"
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" }) ;\n"
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"});",
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format("DEBUG({\n"
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" DEBUG({\n"
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" int a;\n"
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" int b;\n" // Format this line only.
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" }) ;\n" // Don't touch this line.
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"});",
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35, 0));
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EXPECT_EQ("DEBUG({\n"
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" int a; //\n"
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"});",
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format("DEBUG({\n"
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" int a; //\n"
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"});",
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0, 0));
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EXPECT_EQ("someFunction(\n"
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" [] {\n"
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" // Only with this comment.\n"
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" int i; // invoke formatting here.\n"
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" }, // force line break\n"
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" aaa);",
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format("someFunction(\n"
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" [] {\n"
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" // Only with this comment.\n"
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" int i; // invoke formatting here.\n"
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" }, // force line break\n"
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" aaa);",
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63, 1));
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EXPECT_EQ("int longlongname; // comment\n"
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"int x = f({\n"
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" int x; // comment\n"
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" int y; // comment\n"
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"});",
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format("int longlongname; // comment\n"
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"int x = f({\n"
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" int x; // comment\n"
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" int y; // comment\n"
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"});",
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65, 0));
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EXPECT_EQ("int s = f({\n"
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" class X {\n"
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" public:\n"
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" void f();\n"
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" };\n"
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"});",
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format("int s = f({\n"
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" class X {\n"
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" public:\n"
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" void f();\n"
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" };\n"
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"});",
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0, 0));
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EXPECT_EQ("SomeFunction(\n"
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" [] {\n"
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" int i;\n"
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" return i;\n" // Format this line.
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" },\n"
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" [] {\n"
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" return 2;\n" // Don't fix this.
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" });",
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format("SomeFunction(\n"
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" [] {\n"
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" int i;\n"
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" return i;\n" // Format this line.
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" },\n"
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" [] {\n"
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" return 2;\n" // Don't fix this.
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" });",
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40, 0));
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}
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TEST_F(FormatTestSelective, WrongIndent) {
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EXPECT_EQ("namespace {\n"
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"int i;\n"
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"int j;\n"
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"}",
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format("namespace {\n"
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" int i;\n" // Format here.
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" int j;\n"
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"}",
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|
15, 0));
|
||
|
|
EXPECT_EQ("namespace {\n"
|
||
|
|
" int i;\n"
|
||
|
|
" int j;\n"
|
||
|
|
"}",
|
||
|
|
format("namespace {\n"
|
||
|
|
" int i;\n"
|
||
|
|
" int j;\n" // Format here.
|
||
|
|
"}",
|
||
|
|
24, 0));
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(FormatTestSelective, AlwaysFormatsEntireMacroDefinitions) {
|
||
|
|
Style.AlignEscapedNewlines = FormatStyle::ENAS_Left;
|
||
|
|
EXPECT_EQ("int i;\n"
|
||
|
|
"#define A \\\n"
|
||
|
|
" int i; \\\n"
|
||
|
|
" int j\n"
|
||
|
|
"int k;",
|
||
|
|
format("int i;\n"
|
||
|
|
"#define A \\\n"
|
||
|
|
" int i ; \\\n"
|
||
|
|
" int j\n"
|
||
|
|
"int k;",
|
||
|
|
8, 0)); // 8: position of "#define".
|
||
|
|
EXPECT_EQ("int i;\n"
|
||
|
|
"#define A \\\n"
|
||
|
|
" int i; \\\n"
|
||
|
|
" int j\n"
|
||
|
|
"int k;",
|
||
|
|
format("int i;\n"
|
||
|
|
"#define A \\\n"
|
||
|
|
" int i ; \\\n"
|
||
|
|
" int j\n"
|
||
|
|
"int k;",
|
||
|
|
45, 0)); // 45: position of "j".
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(FormatTestSelective, ReformatRegionAdjustsIndent) {
|
||
|
|
EXPECT_EQ("{\n"
|
||
|
|
"{\n"
|
||
|
|
"a;\n"
|
||
|
|
"b;\n"
|
||
|
|
"}\n"
|
||
|
|
"}",
|
||
|
|
format("{\n"
|
||
|
|
"{\n"
|
||
|
|
"a;\n"
|
||
|
|
" b;\n"
|
||
|
|
"}\n"
|
||
|
|
"}",
|
||
|
|
13, 2));
|
||
|
|
EXPECT_EQ("{\n"
|
||
|
|
"{\n"
|
||
|
|
" a;\n"
|
||
|
|
" b;\n"
|
||
|
|
" c;\n"
|
||
|
|
" d;\n"
|
||
|
|
"}\n"
|
||
|
|
"}",
|
||
|
|
format("{\n"
|
||
|
|
"{\n"
|
||
|
|
" a;\n"
|
||
|
|
" b;\n"
|
||
|
|
" c;\n"
|
||
|
|
" d;\n"
|
||
|
|
"}\n"
|
||
|
|
"}",
|
||
|
|
9, 2));
|
||
|
|
EXPECT_EQ("{\n"
|
||
|
|
"{\n"
|
||
|
|
"public:\n"
|
||
|
|
" b;\n"
|
||
|
|
"}\n"
|
||
|
|
"}",
|
||
|
|
format("{\n"
|
||
|
|
"{\n"
|
||
|
|
"public:\n"
|
||
|
|
" b;\n"
|
||
|
|
"}\n"
|
||
|
|
"}",
|
||
|
|
17, 2));
|
||
|
|
EXPECT_EQ("{\n"
|
||
|
|
"{\n"
|
||
|
|
"a;\n"
|
||
|
|
"}\n"
|
||
|
|
"{\n"
|
||
|
|
" b; //\n"
|
||
|
|
"}\n"
|
||
|
|
"}",
|
||
|
|
format("{\n"
|
||
|
|
"{\n"
|
||
|
|
"a;\n"
|
||
|
|
"}\n"
|
||
|
|
"{\n"
|
||
|
|
" b; //\n"
|
||
|
|
"}\n"
|
||
|
|
"}",
|
||
|
|
22, 2));
|
||
|
|
EXPECT_EQ(" {\n"
|
||
|
|
" a; //\n"
|
||
|
|
" }",
|
||
|
|
format(" {\n"
|
||
|
|
"a; //\n"
|
||
|
|
" }",
|
||
|
|
4, 2));
|
||
|
|
EXPECT_EQ("void f() {}\n"
|
||
|
|
"void g() {}",
|
||
|
|
format("void f() {}\n"
|
||
|
|
"void g() {}",
|
||
|
|
13, 0));
|
||
|
|
EXPECT_EQ("int a; // comment\n"
|
||
|
|
" // line 2\n"
|
||
|
|
"int b;",
|
||
|
|
format("int a; // comment\n"
|
||
|
|
" // line 2\n"
|
||
|
|
" int b;",
|
||
|
|
35, 0));
|
||
|
|
|
||
|
|
EXPECT_EQ(" void f() {\n"
|
||
|
|
"#define A 1\n"
|
||
|
|
" }",
|
||
|
|
format(" void f() {\n"
|
||
|
|
" #define A 1\n" // Format this line.
|
||
|
|
" }",
|
||
|
|
20, 0));
|
||
|
|
EXPECT_EQ(" void f() {\n"
|
||
|
|
" int i;\n"
|
||
|
|
"#define A \\\n"
|
||
|
|
" int i; \\\n"
|
||
|
|
" int j;\n"
|
||
|
|
" int k;\n"
|
||
|
|
" }",
|
||
|
|
format(" void f() {\n"
|
||
|
|
" int i;\n"
|
||
|
|
"#define A \\\n"
|
||
|
|
" int i; \\\n"
|
||
|
|
" int j;\n"
|
||
|
|
" int k;\n" // Format this line.
|
||
|
|
" }",
|
||
|
|
67, 0));
|
||
|
|
|
||
|
|
Style.ColumnLimit = 11;
|
||
|
|
EXPECT_EQ(" int a;\n"
|
||
|
|
" void\n"
|
||
|
|
" ffffff() {\n"
|
||
|
|
" }",
|
||
|
|
format(" int a;\n"
|
||
|
|
"void ffffff() {}",
|
||
|
|
11, 0));
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(FormatTestSelective, UnderstandsTabs) {
|
||
|
|
Style.IndentWidth = 8;
|
||
|
|
Style.UseTab = FormatStyle::UT_Always;
|
||
|
|
Style.AlignEscapedNewlines = FormatStyle::ENAS_Left;
|
||
|
|
EXPECT_EQ("void f() {\n"
|
||
|
|
"\tf();\n"
|
||
|
|
"\tg();\n"
|
||
|
|
"}",
|
||
|
|
format("void f() {\n"
|
||
|
|
"\tf();\n"
|
||
|
|
"\tg();\n"
|
||
|
|
"}",
|
||
|
|
0, 0));
|
||
|
|
EXPECT_EQ("void f() {\n"
|
||
|
|
"\tf();\n"
|
||
|
|
"\tg();\n"
|
||
|
|
"}",
|
||
|
|
format("void f() {\n"
|
||
|
|
"\tf();\n"
|
||
|
|
"\tg();\n"
|
||
|
|
"}",
|
||
|
|
16, 0));
|
||
|
|
EXPECT_EQ("void f() {\n"
|
||
|
|
" \tf();\n"
|
||
|
|
"\tg();\n"
|
||
|
|
"}",
|
||
|
|
format("void f() {\n"
|
||
|
|
" \tf();\n"
|
||
|
|
" \tg();\n"
|
||
|
|
"}",
|
||
|
|
21, 0));
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(FormatTestSelective, StopFormattingWhenLeavingScope) {
|
||
|
|
EXPECT_EQ(
|
||
|
|
"void f() {\n"
|
||
|
|
" if (a) {\n"
|
||
|
|
" g();\n"
|
||
|
|
" h();\n"
|
||
|
|
" }\n"
|
||
|
|
"\n"
|
||
|
|
"void g() {\n"
|
||
|
|
"}",
|
||
|
|
format("void f() {\n"
|
||
|
|
" if (a) {\n" // Assume this was added without the closing brace.
|
||
|
|
" g();\n"
|
||
|
|
" h();\n"
|
||
|
|
"}\n"
|
||
|
|
"\n"
|
||
|
|
"void g() {\n" // Make sure not to format this.
|
||
|
|
"}",
|
||
|
|
15, 0));
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(FormatTestSelective, SelectivelyRequoteJavaScript) {
|
||
|
|
Style = getGoogleStyle(FormatStyle::LK_JavaScript);
|
||
|
|
EXPECT_EQ("var x = \"a\";\n"
|
||
|
|
"var x = 'a';\n"
|
||
|
|
"var x = \"a\";",
|
||
|
|
format("var x = \"a\";\n"
|
||
|
|
"var x = \"a\";\n"
|
||
|
|
"var x = \"a\";",
|
||
|
|
20, 0));
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(FormatTestSelective, KeepsIndentAfterCommentSectionImport) {
|
||
|
|
std::string Code = "#include <a> // line 1\n" // 23 chars long
|
||
|
|
" // line 2\n" // 23 chars long
|
||
|
|
"\n" // this newline is char 47
|
||
|
|
"int i;"; // this line is not indented
|
||
|
|
EXPECT_EQ(Code, format(Code, 47, 1));
|
||
|
|
}
|
||
|
|
|
||
|
|
} // end namespace
|
||
|
|
} // end namespace format
|
||
|
|
} // end namespace clang
|