| // 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 "src/ast/switch_statement.h" |
| |
| #include <sstream> |
| |
| #include "gtest/gtest.h" |
| #include "src/ast/bool_literal.h" |
| #include "src/ast/case_statement.h" |
| #include "src/ast/identifier_expression.h" |
| #include "src/ast/type/bool_type.h" |
| |
| namespace tint { |
| namespace ast { |
| namespace { |
| |
| using SwitchStatementTest = testing::Test; |
| |
| TEST_F(SwitchStatementTest, Creation) { |
| ast::type::BoolType bool_type; |
| auto lit = std::make_unique<BoolLiteral>(&bool_type, true); |
| auto ident = std::make_unique<IdentifierExpression>("ident"); |
| CaseStatementList body; |
| body.push_back( |
| std::make_unique<CaseStatement>(std::move(lit), StatementList())); |
| |
| auto* ident_ptr = ident.get(); |
| auto* case_ptr = body[0].get(); |
| |
| SwitchStatement stmt(std::move(ident), std::move(body)); |
| EXPECT_EQ(stmt.condition(), ident_ptr); |
| ASSERT_EQ(stmt.body().size(), 1u); |
| EXPECT_EQ(stmt.body()[0].get(), case_ptr); |
| } |
| |
| TEST_F(SwitchStatementTest, Creation_WithSource) { |
| auto ident = std::make_unique<IdentifierExpression>("ident"); |
| |
| SwitchStatement stmt(Source{20, 2}, std::move(ident), CaseStatementList()); |
| auto src = stmt.source(); |
| EXPECT_EQ(src.line, 20u); |
| EXPECT_EQ(src.column, 2u); |
| } |
| |
| TEST_F(SwitchStatementTest, IsSwitch) { |
| SwitchStatement stmt; |
| EXPECT_TRUE(stmt.IsSwitch()); |
| } |
| |
| TEST_F(SwitchStatementTest, IsValid) { |
| ast::type::BoolType bool_type; |
| auto lit = std::make_unique<BoolLiteral>(&bool_type, true); |
| auto ident = std::make_unique<IdentifierExpression>("ident"); |
| CaseStatementList body; |
| body.push_back( |
| std::make_unique<CaseStatement>(std::move(lit), StatementList())); |
| |
| SwitchStatement stmt(std::move(ident), std::move(body)); |
| EXPECT_TRUE(stmt.IsValid()); |
| } |
| |
| TEST_F(SwitchStatementTest, IsValid_Null_Condition) { |
| ast::type::BoolType bool_type; |
| auto lit = std::make_unique<BoolLiteral>(&bool_type, true); |
| CaseStatementList body; |
| body.push_back( |
| std::make_unique<CaseStatement>(std::move(lit), StatementList())); |
| |
| SwitchStatement stmt; |
| stmt.set_body(std::move(body)); |
| EXPECT_FALSE(stmt.IsValid()); |
| } |
| |
| TEST_F(SwitchStatementTest, IsValid_Invalid_Condition) { |
| ast::type::BoolType bool_type; |
| auto lit = std::make_unique<BoolLiteral>(&bool_type, true); |
| auto ident = std::make_unique<IdentifierExpression>(""); |
| CaseStatementList body; |
| body.push_back( |
| std::make_unique<CaseStatement>(std::move(lit), StatementList())); |
| |
| SwitchStatement stmt(std::move(ident), std::move(body)); |
| EXPECT_FALSE(stmt.IsValid()); |
| } |
| |
| TEST_F(SwitchStatementTest, IsValid_Null_BodyStatement) { |
| ast::type::BoolType bool_type; |
| auto lit = std::make_unique<BoolLiteral>(&bool_type, true); |
| auto ident = std::make_unique<IdentifierExpression>("ident"); |
| CaseStatementList body; |
| body.push_back( |
| std::make_unique<CaseStatement>(std::move(lit), StatementList())); |
| body.push_back(nullptr); |
| |
| SwitchStatement stmt(std::move(ident), std::move(body)); |
| EXPECT_FALSE(stmt.IsValid()); |
| } |
| |
| TEST_F(SwitchStatementTest, IsValid_Invalid_BodyStatement) { |
| auto ident = std::make_unique<IdentifierExpression>("ident"); |
| |
| StatementList case_body; |
| case_body.push_back(nullptr); |
| |
| CaseStatementList body; |
| body.push_back( |
| std::make_unique<CaseStatement>(nullptr, std::move(case_body))); |
| |
| SwitchStatement stmt(std::move(ident), std::move(body)); |
| EXPECT_FALSE(stmt.IsValid()); |
| } |
| |
| TEST_F(SwitchStatementTest, ToStr_Empty) { |
| auto ident = std::make_unique<IdentifierExpression>("ident"); |
| |
| SwitchStatement stmt(std::move(ident), {}); |
| std::ostringstream out; |
| stmt.to_str(out, 2); |
| EXPECT_EQ(out.str(), R"( Switch{ |
| Identifier{ident} |
| { |
| } |
| } |
| )"); |
| } |
| |
| TEST_F(SwitchStatementTest, ToStr) { |
| ast::type::BoolType bool_type; |
| auto lit = std::make_unique<BoolLiteral>(&bool_type, true); |
| auto ident = std::make_unique<IdentifierExpression>("ident"); |
| CaseStatementList body; |
| body.push_back( |
| std::make_unique<CaseStatement>(std::move(lit), StatementList())); |
| |
| SwitchStatement stmt(std::move(ident), std::move(body)); |
| std::ostringstream out; |
| stmt.to_str(out, 2); |
| EXPECT_EQ(out.str(), R"( Switch{ |
| Identifier{ident} |
| { |
| Case true{ |
| } |
| } |
| } |
| )"); |
| } |
| |
| } // namespace |
| } // namespace ast |
| } // namespace tint |