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// Copyright 2020 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/writer/hlsl/test_helper.h"
using namespace tint::number_suffixes; // NOLINT
namespace tint::writer::hlsl {
namespace {
using HlslGeneratorImplTest_Switch = TestHelper;
TEST_F(HlslGeneratorImplTest_Switch, Emit_Switch) {
Global("cond", ty.i32(), ast::StorageClass::kPrivate);
auto* s = Switch( //
Expr("cond"), //
Case(Expr(5_i), Block(Break())), //
DefaultCase());
WrapInFunction(s);
GeneratorImpl& gen = Build();
gen.increment_indent();
ASSERT_TRUE(gen.EmitStatement(s)) << gen.error();
EXPECT_EQ(gen.result(), R"( switch(cond) {
case 5: {
break;
}
default: {
break;
}
}
)");
}
TEST_F(HlslGeneratorImplTest_Switch, Emit_Switch_OnlyDefaultCase) {
Global("cond", ty.i32(), ast::StorageClass::kPrivate);
Global("a", ty.i32(), ast::StorageClass::kPrivate);
auto* s = Switch( //
Expr("cond"), //
DefaultCase(Block(Assign(Expr("a"), Expr(42_i)))));
WrapInFunction(s);
GeneratorImpl& gen = Build();
gen.increment_indent();
ASSERT_TRUE(gen.EmitStatement(s)) << gen.error();
EXPECT_EQ(gen.result(), R"( cond;
do {
a = 42;
} while (false);
)");
}
} // namespace
} // namespace tint::writer::hlsl