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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/ast/case_statement.h"
#include "gtest/gtest-spi.h"
#include "src/ast/discard_statement.h"
#include "src/ast/if_statement.h"
#include "src/ast/test_helper.h"
namespace tint {
namespace ast {
namespace {
using CaseStatementTest = TestHelper;
TEST_F(CaseStatementTest, Creation_i32) {
CaseSelectorList b;
auto* selector = create<SintLiteralExpression>(2);
b.push_back(selector);
auto* discard = create<DiscardStatement>();
auto* body = create<BlockStatement>(StatementList{discard});
auto* c = create<CaseStatement>(b, body);
ASSERT_EQ(c->selectors.size(), 1u);
EXPECT_EQ(c->selectors[0], selector);
ASSERT_EQ(c->body->statements.size(), 1u);
EXPECT_EQ(c->body->statements[0], discard);
}
TEST_F(CaseStatementTest, Creation_u32) {
CaseSelectorList b;
auto* selector = create<UintLiteralExpression>(2u);
b.push_back(selector);
auto* discard = create<DiscardStatement>();
auto* body = create<BlockStatement>(StatementList{discard});
auto* c = create<CaseStatement>(b, body);
ASSERT_EQ(c->selectors.size(), 1u);
EXPECT_EQ(c->selectors[0], selector);
ASSERT_EQ(c->body->statements.size(), 1u);
EXPECT_EQ(c->body->statements[0], discard);
}
TEST_F(CaseStatementTest, Creation_WithSource) {
CaseSelectorList b;
b.push_back(create<SintLiteralExpression>(2));
auto* body = create<BlockStatement>(StatementList{
create<DiscardStatement>(),
});
auto* c = create<CaseStatement>(Source{Source::Location{20, 2}}, b, body);
auto src = c->source;
EXPECT_EQ(src.range.begin.line, 20u);
EXPECT_EQ(src.range.begin.column, 2u);
}
TEST_F(CaseStatementTest, IsDefault_WithoutSelectors) {
auto* body = create<BlockStatement>(StatementList{
create<DiscardStatement>(),
});
auto* c = create<CaseStatement>(CaseSelectorList{}, body);
EXPECT_TRUE(c->IsDefault());
}
TEST_F(CaseStatementTest, IsDefault_WithSelectors) {
CaseSelectorList b;
b.push_back(create<SintLiteralExpression>(2));
auto* c = create<CaseStatement>(b, create<BlockStatement>(StatementList{}));
EXPECT_FALSE(c->IsDefault());
}
TEST_F(CaseStatementTest, IsCase) {
auto* c = create<CaseStatement>(CaseSelectorList{},
create<BlockStatement>(StatementList{}));
EXPECT_TRUE(c->Is<CaseStatement>());
}
TEST_F(CaseStatementTest, Assert_Null_Body) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.create<CaseStatement>(CaseSelectorList{}, nullptr);
},
"internal compiler error");
}
TEST_F(CaseStatementTest, Assert_Null_Selector) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.create<CaseStatement>(CaseSelectorList{nullptr},
b.create<BlockStatement>(StatementList{}));
},
"internal compiler error");
}
TEST_F(CaseStatementTest, Assert_DifferentProgramID_Call) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<CaseStatement>(CaseSelectorList{},
b2.create<BlockStatement>(StatementList{}));
},
"internal compiler error");
}
TEST_F(CaseStatementTest, Assert_DifferentProgramID_Selector) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<CaseStatement>(
CaseSelectorList{b2.create<SintLiteralExpression>(2)},
b1.create<BlockStatement>(StatementList{}));
},
"internal compiler error");
}
} // namespace
} // namespace ast
} // namespace tint