DiagnosticFormattingTests.cpp

//===--- DiagnosticFormattingTests.cpp ------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2025 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//

#include"swift/AST/Attr.h"
#include"swift/AST/DiagnosticEngine.h"
#include"swift/Basic/SourceManager.h"
#include"llvm/Support/raw_ostream.h"
#include"gtest/gtest.h"

usingnamespaceswift;

namespace {

staticvoidtestCase(StringRef formatStr, StringRef resultStr,
 ArrayRef<DiagnosticArgument> args) {
 SourceManager sourceMgr;
 DiagnosticEngine diags(sourceMgr);

 std::string actualResultStr;
 llvm::raw_string_ostream os(actualResultStr);

 diags.formatDiagnosticText(os, formatStr, args);

ASSERT_EQ(actualResultStr, resultStr.str());
}

TEST(DiagnosticFormatting, TypeAttribute) {
 EscapingTypeAttr attr{SourceLoc(), SourceLoc()};
testCase("%0", "'@escaping'", {&attr});
testCase("%kind0", "attribute 'escaping'", {&attr});
}

} // end anonymous namespace