| // Copyright 2020 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 <memory> |
| |
| #include "gtest/gtest.h" |
| #include "src/ast/break_statement.h" |
| #include "src/ast/case_statement.h" |
| #include "src/ast/identifier_expression.h" |
| #include "src/ast/sint_literal.h" |
| #include "src/ast/type/i32_type.h" |
| #include "src/writer/wgsl/generator_impl.h" |
| #include "src/writer/wgsl/test_helper.h" |
| |
| namespace tint { |
| namespace writer { |
| namespace wgsl { |
| namespace { |
| |
| using WgslGeneratorImplTest = TestHelper; |
| |
| TEST_F(WgslGeneratorImplTest, Emit_Case) { |
| auto* body = create<ast::BlockStatement>(ast::StatementList{ |
| create<ast::BreakStatement>(), |
| }); |
| ast::CaseSelectorList lit; |
| lit.push_back(create<ast::SintLiteral>(ty.i32, 5)); |
| auto* c = create<ast::CaseStatement>(lit, body); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitCase(c)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"( case 5: { |
| break; |
| } |
| )"); |
| } |
| |
| TEST_F(WgslGeneratorImplTest, Emit_Case_MultipleSelectors) { |
| auto* body = create<ast::BlockStatement>(ast::StatementList{ |
| create<ast::BreakStatement>(), |
| }); |
| ast::CaseSelectorList lit; |
| lit.push_back(create<ast::SintLiteral>(ty.i32, 5)); |
| lit.push_back(create<ast::SintLiteral>(ty.i32, 6)); |
| auto* c = create<ast::CaseStatement>(lit, body); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitCase(c)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"( case 5, 6: { |
| break; |
| } |
| )"); |
| } |
| |
| TEST_F(WgslGeneratorImplTest, Emit_Case_Default) { |
| auto* body = create<ast::BlockStatement>(ast::StatementList{ |
| create<ast::BreakStatement>(), |
| }); |
| auto* c = create<ast::CaseStatement>(ast::CaseSelectorList{}, body); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitCase(c)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"( default: { |
| break; |
| } |
| )"); |
| } |
| |
| } // namespace |
| } // namespace wgsl |
| } // namespace writer |
| } // namespace tint |