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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/ir/swizzle.h"
#include "gmock/gmock.h"
#include "gtest/gtest-spi.h"
#include "src/tint/ir/ir_test_helper.h"
namespace tint::ir {
namespace {
using IR_SwizzleTest = IRTestHelper;
TEST_F(IR_SwizzleTest, SetsUsage) {
auto* ty = mod.Types().pointer(mod.Types().i32(), builtin::AddressSpace::kFunction,
builtin::Access::kReadWrite);
auto* var = b.Declare(ty);
auto* a = b.Swizzle(mod.Types().i32(), var, utils::Vector{1u});
EXPECT_THAT(var->Usages(), testing::UnorderedElementsAre(Usage{a, 0u}));
}
TEST_F(IR_SwizzleTest, Fail_NullType) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* ty = mod.Types().pointer(mod.Types().i32(), builtin::AddressSpace::kFunction,
builtin::Access::kReadWrite);
auto* var = b.Declare(ty);
b.Swizzle(nullptr, var, utils::Vector{1u});
},
"");
}
TEST_F(IR_SwizzleTest, Fail_NullObject) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
b.Swizzle(mod.Types().i32(), nullptr, utils::Vector{1u});
},
"");
}
TEST_F(IR_SwizzleTest, Fail_EmptyIndices) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* ty = mod.Types().pointer(mod.Types().i32(), builtin::AddressSpace::kFunction,
builtin::Access::kReadWrite);
auto* var = b.Declare(ty);
b.Swizzle(mod.Types().i32(), var, utils::Empty);
},
"");
}
TEST_F(IR_SwizzleTest, Fail_TooManyIndices) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* ty = mod.Types().pointer(mod.Types().i32(), builtin::AddressSpace::kFunction,
builtin::Access::kReadWrite);
auto* var = b.Declare(ty);
b.Swizzle(mod.Types().i32(), var, utils::Vector{1u, 1u, 1u, 1u, 1u});
},
"");
}
TEST_F(IR_SwizzleTest, Fail_IndexOutOfRange) {
EXPECT_FATAL_FAILURE(
{
Module mod;
Builder b{mod};
auto* ty = mod.Types().pointer(mod.Types().i32(), builtin::AddressSpace::kFunction,
builtin::Access::kReadWrite);
auto* var = b.Declare(ty);
b.Swizzle(mod.Types().i32(), var, utils::Vector{4u});
},
"");
}
} // namespace
} // namespace tint::ir