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// Copyright 2023 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/core/ir/exit_switch.h"
#include "gmock/gmock.h"
#include "src/tint/lang/core/ir/ir_test_helper.h"
namespace tint::ir {
namespace {
using namespace tint::number_suffixes; // NOLINT
using IR_ExitSwitchTest = IRTestHelper;
TEST_F(IR_ExitSwitchTest, Usage) {
auto* arg1 = b.Constant(1_u);
auto* arg2 = b.Constant(2_u);
auto* switch_ = b.Switch(true);
auto* e = b.ExitSwitch(switch_, arg1, arg2);
EXPECT_THAT(arg1->Usages(), testing::UnorderedElementsAre(Usage{e, 0u}));
EXPECT_THAT(arg2->Usages(), testing::UnorderedElementsAre(Usage{e, 1u}));
EXPECT_EQ(switch_->Result(), nullptr);
}
TEST_F(IR_ExitSwitchTest, Result) {
auto* arg1 = b.Constant(1_u);
auto* arg2 = b.Constant(2_u);
auto* switch_ = b.Switch(true);
auto* e = b.ExitSwitch(switch_, arg1, arg2);
EXPECT_FALSE(e->HasResults());
EXPECT_FALSE(e->HasMultiResults());
}
TEST_F(IR_ExitSwitchTest, Destroy) {
auto* swch = b.Switch(1_i);
auto* exit = b.ExitSwitch(swch);
EXPECT_THAT(swch->Exits(), testing::UnorderedElementsAre(exit));
exit->Destroy();
EXPECT_TRUE(swch->Exits().IsEmpty());
EXPECT_FALSE(exit->Alive());
}
} // namespace
} // namespace tint::ir