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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/swizzle.h"
#include "gmock/gmock.h"
#include "gtest/gtest-spi.h"
#include "src/tint/lang/core/ir/ir_helper_test.h"
using namespace tint::builtin::fluent_types; // NOLINT
namespace tint::ir {
namespace {
using IR_SwizzleTest = IRTestHelper;
TEST_F(IR_SwizzleTest, SetsUsage) {
auto* var = b.Var(ty.ptr<function, i32>());
auto* a = b.Swizzle(mod.Types().i32(), var, {1u});
EXPECT_THAT(var->Result()->Usages(), testing::UnorderedElementsAre(Usage{a, 0u}));
}
TEST_F(IR_SwizzleTest, Results) {
auto* var = b.Var(ty.ptr<function, i32>());
auto* a = b.Swizzle(mod.Types().i32(), var, {1u});
EXPECT_TRUE(a->HasResults());
EXPECT_FALSE(a->HasMultiResults());
EXPECT_TRUE(a->Result()->Is<InstructionResult>());
EXPECT_EQ(a->Result()->Source(), a);
}
TEST_F(IR_SwizzleTest, Fail_NullType) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* var = b.Var(mod.Types().ptr<function, i32>());
b.Swizzle(nullptr, var, {1u});
},
"");
}
TEST_F(IR_SwizzleTest, Fail_EmptyIndices) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* var = b.Var(mod.Types().ptr<function, i32>());
b.Swizzle(mod.Types().i32(), var, tint::Empty);
},
"");
}
TEST_F(IR_SwizzleTest, Fail_TooManyIndices) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* var = b.Var(mod.Types().ptr<function, i32>());
b.Swizzle(mod.Types().i32(), var, {1u, 1u, 1u, 1u, 1u});
},
"");
}
TEST_F(IR_SwizzleTest, Fail_IndexOutOfRange) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* var = b.Var(mod.Types().ptr<function, i32>());
b.Swizzle(mod.Types().i32(), var, {4u});
},
"");
}
} // namespace
} // namespace tint::ir