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// Copyright 2021 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/lang/glsl/writer/ast_printer/helper_test.h"
#include "gmock/gmock.h"
using namespace tint::core::number_suffixes; // NOLINT
namespace tint::glsl::writer {
namespace {
using GlslASTPrinterTest_Case = TestHelper;
TEST_F(GlslASTPrinterTest_Case, Emit_Case) {
auto* s =
Switch(1_i, Case(CaseSelector(5_i), Block(create<ast::BreakStatement>())), DefaultCase());
WrapInFunction(s);
ASTPrinter& gen = Build();
gen.IncrementIndent();
gen.EmitCase(s->body[0]);
EXPECT_EQ(gen.Result(), R"( case 5: {
break;
}
)");
}
TEST_F(GlslASTPrinterTest_Case, Emit_Case_BreaksByDefault) {
auto* s = Switch(1_i, Case(CaseSelector(5_i), Block()), DefaultCase());
WrapInFunction(s);
ASTPrinter& gen = Build();
gen.IncrementIndent();
gen.EmitCase(s->body[0]);
EXPECT_THAT(gen.Diagnostics(), testing::IsEmpty());
EXPECT_EQ(gen.Result(), R"( case 5: {
break;
}
)");
}
TEST_F(GlslASTPrinterTest_Case, Emit_Case_MultipleSelectors) {
auto* s = Switch(1_i,
Case(
Vector{
CaseSelector(5_i),
CaseSelector(6_i),
},
Block(create<ast::BreakStatement>())),
DefaultCase());
WrapInFunction(s);
ASTPrinter& gen = Build();
gen.IncrementIndent();
gen.EmitCase(s->body[0]);
EXPECT_THAT(gen.Diagnostics(), testing::IsEmpty());
EXPECT_EQ(gen.Result(), R"( case 5:
case 6: {
break;
}
)");
}
TEST_F(GlslASTPrinterTest_Case, Emit_Case_Default) {
auto* s = Switch(1_i, DefaultCase(Block(create<ast::BreakStatement>())));
WrapInFunction(s);
ASTPrinter& gen = Build();
gen.IncrementIndent();
gen.EmitCase(s->body[0]);
EXPECT_THAT(gen.Diagnostics(), testing::IsEmpty());
EXPECT_EQ(gen.Result(), R"( default: {
break;
}
)");
}
} // namespace
} // namespace tint::glsl::writer