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// Copyright 2021 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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#include "src/tint/lang/wgsl/ast/transform/add_empty_entry_point.h"
#include <utility>
#include "src/tint/lang/wgsl/ast/transform/helper_test.h"
namespace tint::ast::transform {
namespace {
using AddEmptyEntryPointTest = TransformTest;
TEST_F(AddEmptyEntryPointTest, ShouldRunEmptyModule) {
auto* src = R"()";
EXPECT_TRUE(ShouldRun<AddEmptyEntryPoint>(src));
}
TEST_F(AddEmptyEntryPointTest, ShouldRunExistingEntryPoint) {
auto* src = R"(
@compute @workgroup_size(1)
fn existing() {}
)";
EXPECT_FALSE(ShouldRun<AddEmptyEntryPoint>(src));
}
TEST_F(AddEmptyEntryPointTest, EmptyModule) {
auto* src = R"()";
auto* expect = R"(
@compute @workgroup_size(1i)
fn unused_entry_point() {
}
)";
auto got = Run<AddEmptyEntryPoint>(src);
EXPECT_EQ(expect, str(got));
}
TEST_F(AddEmptyEntryPointTest, ExistingEntryPoint) {
auto* src = R"(
@fragment
fn main() {
}
)";
auto* expect = src;
auto got = Run<AddEmptyEntryPoint>(src);
EXPECT_EQ(expect, str(got));
}
TEST_F(AddEmptyEntryPointTest, NameClash) {
auto* src = R"(var<private> unused_entry_point : f32;)";
auto* expect = R"(
@compute @workgroup_size(1i)
fn unused_entry_point_1() {
}
var<private> unused_entry_point : f32;
)";
auto got = Run<AddEmptyEntryPoint>(src);
EXPECT_EQ(expect, str(got));
}
} // namespace
} // namespace tint::ast::transform