| //===- unittest/Format/SortIncludesTest.cpp - Include sort unit tests -----===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "FormatTestUtils.h" |
| #include "clang/Format/Format.h" |
| #include "llvm/Support/Debug.h" |
| #include "gtest/gtest.h" |
| |
| #define DEBUG_TYPE "format-test" |
| |
| namespace clang { |
| namespace format { |
| namespace { |
| |
| class SortIncludesTest : public ::testing::Test { |
| protected: |
| std::vector<tooling::Range> GetCodeRange(StringRef Code) { |
| return std::vector<tooling::Range>(1, tooling::Range(0, Code.size())); |
| } |
| |
| std::string sort(StringRef Code, StringRef FileName = "input.cpp") { |
| auto Ranges = GetCodeRange(Code); |
| auto Replaces = sortIncludes(Style, Code, Ranges, FileName); |
| Ranges = tooling::calculateRangesAfterReplacements(Replaces, Ranges); |
| auto Sorted = applyAllReplacements(Code, Replaces); |
| EXPECT_TRUE(static_cast<bool>(Sorted)); |
| auto Result = applyAllReplacements( |
| *Sorted, reformat(Style, *Sorted, Ranges, FileName)); |
| EXPECT_TRUE(static_cast<bool>(Result)); |
| return *Result; |
| } |
| |
| unsigned newCursor(llvm::StringRef Code, unsigned Cursor) { |
| sortIncludes(Style, Code, GetCodeRange(Code), "input.cpp", &Cursor); |
| return Cursor; |
| } |
| |
| FormatStyle Style = getLLVMStyle(); |
| |
| }; |
| |
| TEST_F(SortIncludesTest, BasicSorting) { |
| EXPECT_EQ("#include \"a.h\"\n" |
| "#include \"b.h\"\n" |
| "#include \"c.h\"\n", |
| sort("#include \"a.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"b.h\"\n")); |
| } |
| |
| TEST_F(SortIncludesTest, NoReplacementsForValidIncludes) { |
| // Identical #includes have led to a failure with an unstable sort. |
| std::string Code = "#include <a>\n" |
| "#include <b>\n" |
| "#include <c>\n" |
| "#include <d>\n" |
| "#include <e>\n" |
| "#include <f>\n"; |
| EXPECT_TRUE(sortIncludes(Style, Code, GetCodeRange(Code), "a.cc").empty()); |
| } |
| |
| TEST_F(SortIncludesTest, SupportClangFormatOff) { |
| EXPECT_EQ("#include <a>\n" |
| "#include <b>\n" |
| "#include <c>\n" |
| "// clang-format off\n" |
| "#include <b>\n" |
| "#include <a>\n" |
| "#include <c>\n" |
| "// clang-format on\n", |
| sort("#include <b>\n" |
| "#include <a>\n" |
| "#include <c>\n" |
| "// clang-format off\n" |
| "#include <b>\n" |
| "#include <a>\n" |
| "#include <c>\n" |
| "// clang-format on\n")); |
| } |
| |
| TEST_F(SortIncludesTest, IncludeSortingCanBeDisabled) { |
| Style.SortIncludes = false; |
| EXPECT_EQ("#include \"a.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"b.h\"\n", |
| sort("#include \"a.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"b.h\"\n")); |
| } |
| |
| TEST_F(SortIncludesTest, MixIncludeAndImport) { |
| EXPECT_EQ("#include \"a.h\"\n" |
| "#import \"b.h\"\n" |
| "#include \"c.h\"\n", |
| sort("#include \"a.h\"\n" |
| "#include \"c.h\"\n" |
| "#import \"b.h\"\n")); |
| } |
| |
| TEST_F(SortIncludesTest, FixTrailingComments) { |
| EXPECT_EQ("#include \"a.h\" // comment\n" |
| "#include \"bb.h\" // comment\n" |
| "#include \"ccc.h\"\n", |
| sort("#include \"a.h\" // comment\n" |
| "#include \"ccc.h\"\n" |
| "#include \"bb.h\" // comment\n")); |
| } |
| |
| TEST_F(SortIncludesTest, LeadingWhitespace) { |
| EXPECT_EQ("#include \"a.h\"\n" |
| "#include \"b.h\"\n" |
| "#include \"c.h\"\n", |
| sort(" #include \"a.h\"\n" |
| " #include \"c.h\"\n" |
| " #include \"b.h\"\n")); |
| EXPECT_EQ("#include \"a.h\"\n" |
| "#include \"b.h\"\n" |
| "#include \"c.h\"\n", |
| sort("# include \"a.h\"\n" |
| "# include \"c.h\"\n" |
| "# include \"b.h\"\n")); |
| } |
| |
| TEST_F(SortIncludesTest, GreaterInComment) { |
| EXPECT_EQ("#include \"a.h\"\n" |
| "#include \"b.h\" // >\n" |
| "#include \"c.h\"\n", |
| sort("#include \"a.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"b.h\" // >\n")); |
| } |
| |
| TEST_F(SortIncludesTest, SortsLocallyInEachBlock) { |
| EXPECT_EQ("#include \"a.h\"\n" |
| "#include \"c.h\"\n" |
| "\n" |
| "#include \"b.h\"\n", |
| sort("#include \"a.h\"\n" |
| "#include \"c.h\"\n" |
| "\n" |
| "#include \"b.h\"\n")); |
| } |
| |
| TEST_F(SortIncludesTest, HandlesAngledIncludesAsSeparateBlocks) { |
| EXPECT_EQ("#include \"a.h\"\n" |
| "#include \"c.h\"\n" |
| "#include <b.h>\n" |
| "#include <d.h>\n", |
| sort("#include <d.h>\n" |
| "#include <b.h>\n" |
| "#include \"c.h\"\n" |
| "#include \"a.h\"\n")); |
| |
| Style = getGoogleStyle(FormatStyle::LK_Cpp); |
| EXPECT_EQ("#include <b.h>\n" |
| "#include <d.h>\n" |
| "#include \"a.h\"\n" |
| "#include \"c.h\"\n", |
| sort("#include <d.h>\n" |
| "#include <b.h>\n" |
| "#include \"c.h\"\n" |
| "#include \"a.h\"\n")); |
| } |
| |
| TEST_F(SortIncludesTest, HandlesMultilineIncludes) { |
| EXPECT_EQ("#include \"a.h\"\n" |
| "#include \"b.h\"\n" |
| "#include \"c.h\"\n", |
| sort("#include \"a.h\"\n" |
| "#include \\\n" |
| "\"c.h\"\n" |
| "#include \"b.h\"\n")); |
| } |
| |
| TEST_F(SortIncludesTest, LeavesMainHeaderFirst) { |
| Style.IncludeIsMainRegex = "([-_](test|unittest))?$"; |
| EXPECT_EQ("#include \"llvm/a.h\"\n" |
| "#include \"b.h\"\n" |
| "#include \"c.h\"\n", |
| sort("#include \"llvm/a.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"b.h\"\n", |
| "a.cc")); |
| EXPECT_EQ("#include \"llvm/a.h\"\n" |
| "#include \"b.h\"\n" |
| "#include \"c.h\"\n", |
| sort("#include \"llvm/a.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"b.h\"\n", |
| "a_test.cc")); |
| EXPECT_EQ("#include \"llvm/input.h\"\n" |
| "#include \"b.h\"\n" |
| "#include \"c.h\"\n", |
| sort("#include \"llvm/input.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"b.h\"\n", |
| "input.mm")); |
| |
| // Don't allow prefixes. |
| EXPECT_EQ("#include \"b.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"llvm/not_a.h\"\n", |
| sort("#include \"llvm/not_a.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"b.h\"\n", |
| "a.cc")); |
| |
| // Don't do this for _main and other suffixes. |
| EXPECT_EQ("#include \"b.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"llvm/a.h\"\n", |
| sort("#include \"llvm/a.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"b.h\"\n", |
| "a_main.cc")); |
| |
| // Don't do this in headers. |
| EXPECT_EQ("#include \"b.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"llvm/a.h\"\n", |
| sort("#include \"llvm/a.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"b.h\"\n", |
| "a.h")); |
| |
| // Only do this in the first #include block. |
| EXPECT_EQ("#include <a>\n" |
| "\n" |
| "#include \"b.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"llvm/a.h\"\n", |
| sort("#include <a>\n" |
| "\n" |
| "#include \"llvm/a.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"b.h\"\n", |
| "a.cc")); |
| |
| // Only recognize the first #include with a matching basename as main include. |
| EXPECT_EQ("#include \"a.h\"\n" |
| "#include \"b.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"llvm/a.h\"\n", |
| sort("#include \"b.h\"\n" |
| "#include \"a.h\"\n" |
| "#include \"c.h\"\n" |
| "#include \"llvm/a.h\"\n", |
| "a.cc")); |
| } |
| |
| TEST_F(SortIncludesTest, NegativePriorities) { |
| Style.IncludeCategories = {{".*important_os_header.*", -1}, {".*", 1}}; |
| EXPECT_EQ("#include \"important_os_header.h\"\n" |
| "#include \"c_main.h\"\n" |
| "#include \"a_other.h\"\n", |
| sort("#include \"c_main.h\"\n" |
| "#include \"a_other.h\"\n" |
| "#include \"important_os_header.h\"\n", |
| "c_main.cc")); |
| |
| // check stable when re-run |
| EXPECT_EQ("#include \"important_os_header.h\"\n" |
| "#include \"c_main.h\"\n" |
| "#include \"a_other.h\"\n", |
| sort("#include \"important_os_header.h\"\n" |
| "#include \"c_main.h\"\n" |
| "#include \"a_other.h\"\n", |
| "c_main.cc")); |
| } |
| |
| TEST_F(SortIncludesTest, CalculatesCorrectCursorPosition) { |
| std::string Code = "#include <ccc>\n" // Start of line: 0 |
| "#include <bbbbbb>\n" // Start of line: 15 |
| "#include <a>\n"; // Start of line: 33 |
| EXPECT_EQ(31u, newCursor(Code, 0)); |
| EXPECT_EQ(13u, newCursor(Code, 15)); |
| EXPECT_EQ(0u, newCursor(Code, 33)); |
| |
| EXPECT_EQ(41u, newCursor(Code, 10)); |
| EXPECT_EQ(23u, newCursor(Code, 25)); |
| EXPECT_EQ(10u, newCursor(Code, 43)); |
| } |
| |
| TEST_F(SortIncludesTest, DeduplicateIncludes) { |
| EXPECT_EQ("#include <a>\n" |
| "#include <b>\n" |
| "#include <c>\n", |
| sort("#include <a>\n" |
| "#include <b>\n" |
| "#include <b>\n" |
| "#include <b>\n" |
| "#include <b>\n" |
| "#include <c>\n")); |
| } |
| |
| TEST_F(SortIncludesTest, SortAndDeduplicateIncludes) { |
| EXPECT_EQ("#include <a>\n" |
| "#include <b>\n" |
| "#include <c>\n", |
| sort("#include <b>\n" |
| "#include <a>\n" |
| "#include <b>\n" |
| "#include <b>\n" |
| "#include <c>\n" |
| "#include <b>\n")); |
| } |
| |
| TEST_F(SortIncludesTest, CalculatesCorrectCursorPositionAfterDeduplicate) { |
| std::string Code = "#include <b>\n" // Start of line: 0 |
| "#include <a>\n" // Start of line: 13 |
| "#include <b>\n" // Start of line: 26 |
| "#include <b>\n" // Start of line: 39 |
| "#include <c>\n" // Start of line: 52 |
| "#include <b>\n"; // Start of line: 65 |
| std::string Expected = "#include <a>\n" // Start of line: 0 |
| "#include <b>\n" // Start of line: 13 |
| "#include <c>\n"; // Start of line: 26 |
| EXPECT_EQ(Expected, sort(Code)); |
| // Cursor on 'i' in "#include <a>". |
| EXPECT_EQ(1u, newCursor(Code, 14)); |
| // Cursor on 'b' in "#include <b>". |
| EXPECT_EQ(23u, newCursor(Code, 10)); |
| EXPECT_EQ(23u, newCursor(Code, 36)); |
| EXPECT_EQ(23u, newCursor(Code, 49)); |
| EXPECT_EQ(23u, newCursor(Code, 36)); |
| EXPECT_EQ(23u, newCursor(Code, 75)); |
| // Cursor on '#' in "#include <c>". |
| EXPECT_EQ(26u, newCursor(Code, 52)); |
| } |
| |
| TEST_F(SortIncludesTest, DeduplicateLocallyInEachBlock) { |
| EXPECT_EQ("#include <a>\n" |
| "#include <b>\n" |
| "\n" |
| "#include <b>\n" |
| "#include <c>\n", |
| sort("#include <a>\n" |
| "#include <b>\n" |
| "\n" |
| "#include <c>\n" |
| "#include <b>\n" |
| "#include <b>\n")); |
| } |
| |
| TEST_F(SortIncludesTest, ValidAffactedRangesAfterDeduplicatingIncludes) { |
| std::string Code = "#include <a>\n" |
| "#include <b>\n" |
| "#include <a>\n" |
| "#include <a>\n" |
| "\n" |
| " int x ;"; |
| std::vector<tooling::Range> Ranges = {tooling::Range(0, 52)}; |
| auto Replaces = sortIncludes(Style, Code, Ranges, "input.cpp"); |
| Ranges = tooling::calculateRangesAfterReplacements(Replaces, Ranges); |
| EXPECT_EQ(1u, Ranges.size()); |
| EXPECT_EQ(0u, Ranges[0].getOffset()); |
| EXPECT_EQ(26u, Ranges[0].getLength()); |
| } |
| |
| } // end namespace |
| } // end namespace format |
| } // end namespace clang |
