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//===- unittest/Format/FormatTestCSharp.cpp - Formatting tests for CSharp -===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#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 {
class FormatTestCSharp : public ::testing::Test {
protected:
static std::string format(llvm::StringRef Code, unsigned Offset,
unsigned Length, const FormatStyle &Style) {
LLVM_DEBUG(llvm::errs() << "---\n");
LLVM_DEBUG(llvm::errs() << Code << "\n\n");
std::vector<tooling::Range> Ranges(1, tooling::Range(Offset, Length));
tooling::Replacements Replaces = reformat(Style, Code, Ranges);
auto Result = applyAllReplacements(Code, Replaces);
EXPECT_TRUE(static_cast<bool>(Result));
LLVM_DEBUG(llvm::errs() << "\n" << *Result << "\n\n");
return *Result;
}
static std::string
format(llvm::StringRef Code,
const FormatStyle &Style = getGoogleStyle(FormatStyle::LK_CSharp)) {
return format(Code, 0, Code.size(), Style);
}
static FormatStyle getStyleWithColumns(unsigned ColumnLimit) {
FormatStyle Style = getGoogleStyle(FormatStyle::LK_CSharp);
Style.ColumnLimit = ColumnLimit;
return Style;
}
static void verifyFormat(
llvm::StringRef Code,
const FormatStyle &Style = getGoogleStyle(FormatStyle::LK_CSharp)) {
EXPECT_EQ(Code.str(), format(Code, Style)) << "Expected code is not stable";
EXPECT_EQ(Code.str(), format(test::messUp(Code), Style));
}
};
TEST_F(FormatTestCSharp, CSharpClass) {
verifyFormat("public class SomeClass {\n"
" void f() {}\n"
" int g() { return 0; }\n"
" void h() {\n"
" while (true) f();\n"
" for (;;) f();\n"
" if (true) f();\n"
" }\n"
"}");
}
TEST_F(FormatTestCSharp, AccessModifiers) {
verifyFormat("public String toString() {}");
verifyFormat("private String toString() {}");
verifyFormat("protected String toString() {}");
verifyFormat("internal String toString() {}");
verifyFormat("public override String toString() {}");
verifyFormat("private override String toString() {}");
verifyFormat("protected override String toString() {}");
verifyFormat("internal override String toString() {}");
verifyFormat("internal static String toString() {}");
}
TEST_F(FormatTestCSharp, NoStringLiteralBreaks) {
verifyFormat("foo("
"\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaa\");");
}
TEST_F(FormatTestCSharp, CSharpVerbatiumStringLiterals) {
verifyFormat("foo(@\"aaaaaaaa\\abc\\aaaa\");");
// @"ABC\" + ToString("B") - handle embedded \ in literal string at
// the end
//
/*
* After removal of Lexer change we are currently not able
* To handle these cases
verifyFormat("string s = @\"ABC\\\" + ToString(\"B\");");
verifyFormat("string s = @\"ABC\"\"DEF\"\"GHI\"");
verifyFormat("string s = @\"ABC\"\"DEF\"\"\"");
verifyFormat("string s = @\"ABC\"\"DEF\"\"\" + abc");
*/
}
TEST_F(FormatTestCSharp, CSharpInterpolatedStringLiterals) {
verifyFormat("foo($\"aaaaaaaa{aaa}aaaa\");");
verifyFormat("foo($\"aaaa{A}\");");
verifyFormat(
"foo($\"aaaa{A}"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\");");
verifyFormat("Name = $\"{firstName} {lastName}\";");
// $"ABC\" + ToString("B") - handle embedded \ in literal string at
// the end
verifyFormat("string s = $\"A{abc}BC\" + ToString(\"B\");");
verifyFormat("$\"{domain}\\\\{user}\"");
verifyFormat(
"var verbatimInterpolated = $@\"C:\\Users\\{userName}\\Documents\\\";");
}
TEST_F(FormatTestCSharp, CSharpFatArrows) {
verifyFormat("Task serverTask = Task.Run(async() => {");
verifyFormat("public override string ToString() => \"{Name}\\{Age}\";");
}
TEST_F(FormatTestCSharp, CSharpNullConditional) {
verifyFormat(
"public Person(string firstName, string lastName, int? age=null)");
verifyFormat("switch(args?.Length)");
verifyFormat("public static void Main(string[] args) { string dirPath "
"= args?[0]; }");
}
TEST_F(FormatTestCSharp, Attributes) {
verifyFormat("[STAThread]\n"
"static void\n"
"Main(string[] args) {}");
verifyFormat("[TestMethod]\n"
"private class Test {}");
verifyFormat("[TestMethod]\n"
"protected class Test {}");
verifyFormat("[TestMethod]\n"
"internal class Test {}");
verifyFormat("[TestMethod]\n"
"class Test {}");
verifyFormat("[TestMethod]\n"
"[DeploymentItem(\"Test.txt\")]\n"
"public class Test {}");
verifyFormat("[System.AttributeUsage(System.AttributeTargets.Method)]\n"
"[System.Runtime.InteropServices.ComVisible(true)]\n"
"public sealed class STAThreadAttribute : Attribute {}");
verifyFormat("[Verb(\"start\", HelpText = \"Starts the server listening on "
"provided port\")]\n"
"class Test {}");
verifyFormat("[TestMethod]\n"
"public string Host {\n set;\n get;\n}");
verifyFormat("[TestMethod(\"start\", HelpText = \"Starts the server "
"listening on provided host\")]\n"
"public string Host {\n set;\n get;\n}");
}
TEST_F(FormatTestCSharp, CSharpRegions) {
verifyFormat("#region aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaa "
"aaaaaaaaaaaaaaa long region");
}
TEST_F(FormatTestCSharp, CSharpKeyWordEscaping) {
verifyFormat("public enum var { none, @string, bool, @enum }");
}
TEST_F(FormatTestCSharp, CSharpNullCoalescing) {
verifyFormat("var test = ABC ?? DEF");
verifyFormat("string myname = name ?? \"ABC\";");
verifyFormat("return _name ?? \"DEF\";");
}
} // namespace format
} // end namespace clang
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