| // Copyright 2021 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/ast/fallthrough_statement.h" |
| #include "src/tint/writer/glsl/test_helper.h" |
| |
| using namespace tint::number_suffixes; // NOLINT |
| |
| namespace tint::writer::glsl { |
| namespace { |
| |
| using GlslGeneratorImplTest_Case = TestHelper; |
| |
| TEST_F(GlslGeneratorImplTest_Case, Emit_Case) { |
| auto* s = Switch(1_i, Case(Expr(5_i), Block(create<ast::BreakStatement>())), DefaultCase()); |
| WrapInFunction(s); |
| |
| GeneratorImpl& gen = Build(); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitCase(s->body[0])) << gen.error(); |
| EXPECT_EQ(gen.result(), R"( case 5: { |
| break; |
| } |
| )"); |
| } |
| |
| TEST_F(GlslGeneratorImplTest_Case, Emit_Case_BreaksByDefault) { |
| auto* s = Switch(1_i, Case(Expr(5_i), Block()), DefaultCase()); |
| WrapInFunction(s); |
| |
| GeneratorImpl& gen = Build(); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitCase(s->body[0])) << gen.error(); |
| EXPECT_EQ(gen.result(), R"( case 5: { |
| break; |
| } |
| )"); |
| } |
| |
| TEST_F(GlslGeneratorImplTest_Case, Emit_Case_WithFallthrough) { |
| auto* s = |
| Switch(1_i, Case(Expr(5_i), Block(create<ast::FallthroughStatement>())), DefaultCase()); |
| WrapInFunction(s); |
| |
| GeneratorImpl& gen = Build(); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitCase(s->body[0])) << gen.error(); |
| EXPECT_EQ(gen.result(), R"( case 5: { |
| /* fallthrough */ |
| } |
| )"); |
| } |
| |
| TEST_F(GlslGeneratorImplTest_Case, Emit_Case_MultipleSelectors) { |
| auto* s = Switch(1_i, Case({Expr(5_i), Expr(6_i)}, Block(create<ast::BreakStatement>())), |
| DefaultCase()); |
| WrapInFunction(s); |
| |
| GeneratorImpl& gen = Build(); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitCase(s->body[0])) << gen.error(); |
| EXPECT_EQ(gen.result(), R"( case 5: |
| case 6: { |
| break; |
| } |
| )"); |
| } |
| |
| TEST_F(GlslGeneratorImplTest_Case, Emit_Case_Default) { |
| auto* s = Switch(1_i, DefaultCase(Block(create<ast::BreakStatement>()))); |
| WrapInFunction(s); |
| |
| GeneratorImpl& gen = Build(); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitCase(s->body[0])) << gen.error(); |
| EXPECT_EQ(gen.result(), R"( default: { |
| break; |
| } |
| )"); |
| } |
| |
| } // namespace |
| } // namespace tint::writer::glsl |