2020-03-17 03:53:41 +00:00
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// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "src/ast/switch_statement.h"
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#include <sstream>
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#include "src/ast/case_statement.h"
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#include "src/ast/identifier_expression.h"
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#include "src/ast/sint_literal.h"
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#include "src/ast/test_helper.h"
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#include "src/ast/type/i32_type.h"
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namespace tint {
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namespace ast {
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namespace {
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2020-11-13 21:58:28 +00:00
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using SwitchStatementTest = TestHelper;
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TEST_F(SwitchStatementTest, Creation) {
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ast::type::I32Type i32;
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CaseSelectorList lit;
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lit.push_back(create<SintLiteral>(&i32, 1));
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auto* ident = create<IdentifierExpression>("ident");
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CaseStatementList body;
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body.push_back(
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create<CaseStatement>(std::move(lit), create<ast::BlockStatement>()));
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auto* ident_ptr = ident;
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auto* case_ptr = body[0];
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SwitchStatement stmt(std::move(ident), std::move(body));
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EXPECT_EQ(stmt.condition(), ident_ptr);
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ASSERT_EQ(stmt.body().size(), 1u);
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EXPECT_EQ(stmt.body()[0], case_ptr);
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}
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TEST_F(SwitchStatementTest, Creation_WithSource) {
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auto* ident = create<IdentifierExpression>("ident");
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SwitchStatement stmt(Source{Source::Location{20, 2}}, std::move(ident),
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CaseStatementList());
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auto src = stmt.source();
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EXPECT_EQ(src.range.begin.line, 20u);
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EXPECT_EQ(src.range.begin.column, 2u);
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}
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TEST_F(SwitchStatementTest, IsSwitch) {
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SwitchStatement stmt;
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EXPECT_TRUE(stmt.IsSwitch());
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}
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TEST_F(SwitchStatementTest, IsValid) {
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ast::type::I32Type i32;
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CaseSelectorList lit;
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lit.push_back(create<SintLiteral>(&i32, 2));
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auto* ident = create<IdentifierExpression>("ident");
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CaseStatementList body;
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body.push_back(
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create<CaseStatement>(std::move(lit), create<ast::BlockStatement>()));
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SwitchStatement stmt(std::move(ident), std::move(body));
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EXPECT_TRUE(stmt.IsValid());
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}
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TEST_F(SwitchStatementTest, IsValid_Null_Condition) {
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ast::type::I32Type i32;
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CaseSelectorList lit;
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lit.push_back(create<SintLiteral>(&i32, 2));
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CaseStatementList body;
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body.push_back(
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create<CaseStatement>(std::move(lit), create<ast::BlockStatement>()));
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SwitchStatement stmt;
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stmt.set_body(std::move(body));
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EXPECT_FALSE(stmt.IsValid());
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}
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TEST_F(SwitchStatementTest, IsValid_Invalid_Condition) {
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ast::type::I32Type i32;
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CaseSelectorList lit;
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lit.push_back(create<SintLiteral>(&i32, 2));
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auto* ident = create<IdentifierExpression>("");
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CaseStatementList body;
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body.push_back(
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create<CaseStatement>(std::move(lit), create<ast::BlockStatement>()));
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SwitchStatement stmt(std::move(ident), std::move(body));
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EXPECT_FALSE(stmt.IsValid());
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}
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TEST_F(SwitchStatementTest, IsValid_Null_BodyStatement) {
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ast::type::I32Type i32;
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CaseSelectorList lit;
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lit.push_back(create<SintLiteral>(&i32, 2));
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auto* ident = create<IdentifierExpression>("ident");
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CaseStatementList body;
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body.push_back(
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create<CaseStatement>(std::move(lit), create<ast::BlockStatement>()));
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body.push_back(nullptr);
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SwitchStatement stmt(std::move(ident), std::move(body));
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EXPECT_FALSE(stmt.IsValid());
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}
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TEST_F(SwitchStatementTest, IsValid_Invalid_BodyStatement) {
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auto* ident = create<IdentifierExpression>("ident");
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auto* case_body = create<ast::BlockStatement>();
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case_body->append(nullptr);
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CaseStatementList body;
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body.push_back(
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create<CaseStatement>(CaseSelectorList{}, std::move(case_body)));
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SwitchStatement stmt(std::move(ident), std::move(body));
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EXPECT_FALSE(stmt.IsValid());
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}
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TEST_F(SwitchStatementTest, ToStr_Empty) {
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auto* ident = create<IdentifierExpression>("ident");
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SwitchStatement stmt(std::move(ident), {});
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std::ostringstream out;
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stmt.to_str(out, 2);
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EXPECT_EQ(out.str(), R"( Switch{
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Identifier[not set]{ident}
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{
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}
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}
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)");
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}
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TEST_F(SwitchStatementTest, ToStr) {
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ast::type::I32Type i32;
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2020-06-01 16:56:46 +00:00
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CaseSelectorList lit;
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lit.push_back(create<SintLiteral>(&i32, 2));
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auto* ident = create<IdentifierExpression>("ident");
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CaseStatementList body;
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body.push_back(
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create<CaseStatement>(std::move(lit), create<ast::BlockStatement>()));
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SwitchStatement stmt(std::move(ident), std::move(body));
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std::ostringstream out;
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stmt.to_str(out, 2);
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EXPECT_EQ(out.str(), R"( Switch{
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Identifier[not set]{ident}
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{
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Case 2{
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}
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}
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}
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)");
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}
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} // namespace
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} // namespace ast
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} // namespace tint
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