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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 "src/ast/discard_statement.h"
#include "src/ast/if_statement.h"
#include "src/ast/sint_literal.h"
#include "src/ast/test_helper.h"
#include "src/ast/type/i32_type.h"
#include "src/ast/type/u32_type.h"
#include "src/ast/uint_literal.h"
namespace tint {
namespace ast {
namespace {
using CaseStatementTest = TestHelper;
TEST_F(CaseStatementTest, Creation_i32) {
CaseSelectorList b;
auto* selector = create<SintLiteral>(ty.i32, 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()->size(), 1u);
EXPECT_EQ(c->body()->get(0), discard);
}
TEST_F(CaseStatementTest, Creation_u32) {
CaseSelectorList b;
auto* selector = create<SintLiteral>(ty.u32, 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()->size(), 1u);
EXPECT_EQ(c->body()->get(0), discard);
}
TEST_F(CaseStatementTest, Creation_WithSource) {
CaseSelectorList b;
b.push_back(create<SintLiteral>(ty.i32, 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<SintLiteral>(ty.i32, 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, IsValid) {
auto* c = create<CaseStatement>(CaseSelectorList{},
create<BlockStatement>(StatementList{}));
EXPECT_TRUE(c->IsValid());
}
TEST_F(CaseStatementTest, IsValid_NullBodyStatement) {
CaseSelectorList b;
b.push_back(create<SintLiteral>(ty.i32, 2));
auto* body = create<BlockStatement>(StatementList{
create<DiscardStatement>(),
nullptr,
});
auto* c = create<CaseStatement>(b, body);
EXPECT_FALSE(c->IsValid());
}
TEST_F(CaseStatementTest, IsValid_InvalidBodyStatement) {
CaseSelectorList b;
b.push_back(create<SintLiteral>(ty.i32, 2));
auto* body = create<BlockStatement>(
StatementList{
create<IfStatement>(nullptr, create<BlockStatement>(StatementList{}),
ElseStatementList{}),
});
auto* c = create<CaseStatement>(CaseSelectorList{b}, body);
EXPECT_FALSE(c->IsValid());
}
TEST_F(CaseStatementTest, ToStr_WithSelectors_i32) {
CaseSelectorList b;
b.push_back(create<SintLiteral>(ty.i32, -2));
auto* body = create<BlockStatement>(StatementList{
create<DiscardStatement>(),
});
auto* c = create<CaseStatement>(CaseSelectorList{b}, body);
std::ostringstream out;
c->to_str(out, 2);
EXPECT_EQ(out.str(), R"( Case -2{
Discard{}
}
)");
}
TEST_F(CaseStatementTest, ToStr_WithSelectors_u32) {
CaseSelectorList b;
b.push_back(create<UintLiteral>(ty.u32, 2));
auto* body = create<BlockStatement>(StatementList{
create<DiscardStatement>(),
});
auto* c = create<CaseStatement>(CaseSelectorList{b}, body);
std::ostringstream out;
c->to_str(out, 2);
EXPECT_EQ(out.str(), R"( Case 2{
Discard{}
}
)");
}
TEST_F(CaseStatementTest, ToStr_WithMultipleSelectors) {
CaseSelectorList b;
b.push_back(create<SintLiteral>(ty.i32, 1));
b.push_back(create<SintLiteral>(ty.i32, 2));
auto* body = create<BlockStatement>(StatementList{
create<DiscardStatement>(),
});
auto* c = create<CaseStatement>(b, body);
std::ostringstream out;
c->to_str(out, 2);
EXPECT_EQ(out.str(), R"( Case 1, 2{
Discard{}
}
)");
}
TEST_F(CaseStatementTest, ToStr_WithoutSelectors) {
auto* body = create<BlockStatement>(StatementList{
create<DiscardStatement>(),
});
auto* c = create<CaseStatement>(CaseSelectorList{}, body);
std::ostringstream out;
c->to_str(out, 2);
EXPECT_EQ(out.str(), R"( Default{
Discard{}
}
)");
}
} // namespace
} // namespace ast
} // namespace tint