Files
carbon-lang/toolchain/diagnostics/diagnostic_emitter_test.cpp
T

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "toolchain/diagnostics/diagnostic_emitter.h"
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include "llvm/ADT/StringRef.h"
#include "toolchain/diagnostics/mocks.h"
namespace Carbon::Testing {
namespace {
using ::Carbon::Testing::IsDiagnostic;
using ::Carbon::Testing::IsSingleDiagnostic;
using testing::ElementsAre;
struct FakeDiagnosticConverter : DiagnosticConverter<int> {
auto ConvertLoc(int n, ContextFnT /*context_fn*/) const
-> DiagnosticLoc override {
return {.line_number = 1, .column_number = n};
}
};
class DiagnosticEmitterTest : public ::testing::Test {
protected:
DiagnosticEmitterTest() : emitter_(converter_, consumer_) {}
FakeDiagnosticConverter converter_;
Testing::MockDiagnosticConsumer consumer_;
DiagnosticEmitter<int> emitter_;
};
TEST_F(DiagnosticEmitterTest, EmitSimpleError) {
CARBON_DIAGNOSTIC(TestDiagnostic, Error, "simple error");
EXPECT_CALL(consumer_, HandleDiagnostic(IsSingleDiagnostic(
DiagnosticKind::TestDiagnostic,
DiagnosticLevel::Error, 1, 1, "simple error")));
EXPECT_CALL(consumer_, HandleDiagnostic(IsSingleDiagnostic(
DiagnosticKind::TestDiagnostic,
DiagnosticLevel::Error, 1, 2, "simple error")));
emitter_.Emit(1, TestDiagnostic);
emitter_.Emit(2, TestDiagnostic);
}
TEST_F(DiagnosticEmitterTest, EmitSimpleWarning) {
CARBON_DIAGNOSTIC(TestDiagnostic, Warning, "simple warning");
EXPECT_CALL(consumer_,
HandleDiagnostic(IsSingleDiagnostic(
DiagnosticKind::TestDiagnostic, DiagnosticLevel::Warning, 1,
1, "simple warning")));
emitter_.Emit(1, TestDiagnostic);
}
TEST_F(DiagnosticEmitterTest, EmitOneArgDiagnostic) {
CARBON_DIAGNOSTIC(TestDiagnostic, Error, "arg: `{0}`", llvm::StringLiteral);
EXPECT_CALL(consumer_, HandleDiagnostic(IsSingleDiagnostic(
DiagnosticKind::TestDiagnostic,
DiagnosticLevel::Error, 1, 1, "arg: `str`")));
emitter_.Emit(1, TestDiagnostic, "str");
}
TEST_F(DiagnosticEmitterTest, EmitNote) {
CARBON_DIAGNOSTIC(TestDiagnostic, Warning, "simple warning");
CARBON_DIAGNOSTIC(TestDiagnosticNote, Note, "note");
EXPECT_CALL(
consumer_,
HandleDiagnostic(IsDiagnostic(
DiagnosticLevel::Warning,
ElementsAre(
IsDiagnosticMessage(DiagnosticKind::TestDiagnostic,
DiagnosticLevel::Warning, 1, 1,
"simple warning"),
IsDiagnosticMessage(DiagnosticKind::TestDiagnosticNote,
DiagnosticLevel::Note, 1, 2, "note")))));
emitter_.Build(1, TestDiagnostic).Note(2, TestDiagnosticNote).Emit();
}
} // namespace
} // namespace Carbon::Testing