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// 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/tint/ast/switch_statement.h"
#include "gtest/gtest-spi.h"
#include "src/tint/ast/test_helper.h"
namespace tint::ast {
namespace {
using SwitchStatementTest = TestHelper;
TEST_F(SwitchStatementTest, Creation) {
CaseSelectorList lit;
lit.push_back(create<SintLiteralExpression>(1));
auto* ident = Expr("ident");
CaseStatementList body;
auto* case_stmt = create<CaseStatement>(lit, Block());
body.push_back(case_stmt);
auto* stmt = create<SwitchStatement>(ident, body);
EXPECT_EQ(stmt->condition, ident);
ASSERT_EQ(stmt->body.size(), 1u);
EXPECT_EQ(stmt->body[0], case_stmt);
}
TEST_F(SwitchStatementTest, Creation_WithSource) {
auto* ident = Expr("ident");
auto* stmt = create<SwitchStatement>(Source{Source::Location{20, 2}}, ident,
CaseStatementList());
auto src = stmt->source;
EXPECT_EQ(src.range.begin.line, 20u);
EXPECT_EQ(src.range.begin.column, 2u);
}
TEST_F(SwitchStatementTest, IsSwitch) {
CaseSelectorList lit;
lit.push_back(create<SintLiteralExpression>(2));
auto* ident = Expr("ident");
CaseStatementList body;
body.push_back(create<CaseStatement>(lit, Block()));
auto* stmt = create<SwitchStatement>(ident, body);
EXPECT_TRUE(stmt->Is<SwitchStatement>());
}
TEST_F(SwitchStatementTest, Assert_Null_Condition) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
CaseStatementList cases;
cases.push_back(
b.create<CaseStatement>(CaseSelectorList{b.Expr(1)}, b.Block()));
b.create<SwitchStatement>(nullptr, cases);
},
"internal compiler error");
}
TEST_F(SwitchStatementTest, Assert_Null_CaseStatement) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.create<SwitchStatement>(b.Expr(true), CaseStatementList{nullptr});
},
"internal compiler error");
}
TEST_F(SwitchStatementTest, Assert_DifferentProgramID_Condition) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<SwitchStatement>(b2.Expr(true), CaseStatementList{
b1.create<CaseStatement>(
CaseSelectorList{
b1.Expr(1),
},
b1.Block()),
});
},
"internal compiler error");
}
TEST_F(SwitchStatementTest, Assert_DifferentProgramID_CaseStatement) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<SwitchStatement>(b1.Expr(true), CaseStatementList{
b2.create<CaseStatement>(
CaseSelectorList{
b2.Expr(1),
},
b2.Block()),
});
},
"internal compiler error");
}
} // namespace
} // namespace tint::ast