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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/if_statement.h"
#include "gtest/gtest-spi.h"
#include "src/ast/discard_statement.h"
#include "src/ast/test_helper.h"
namespace tint {
namespace ast {
namespace {
using IfStatementTest = TestHelper;
TEST_F(IfStatementTest, Creation) {
auto* cond = Expr("cond");
auto* stmt = create<IfStatement>(Source{Source::Location{20, 2}}, cond,
Block(create<DiscardStatement>()),
ElseStatementList{});
auto src = stmt->source();
EXPECT_EQ(src.range.begin.line, 20u);
EXPECT_EQ(src.range.begin.column, 2u);
}
TEST_F(IfStatementTest, IsIf) {
auto* stmt = create<IfStatement>(Expr(true), Block(), ElseStatementList{});
EXPECT_TRUE(stmt->Is<IfStatement>());
}
TEST_F(IfStatementTest, Assert_Null_Condition) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.create<IfStatement>(nullptr, b.Block(), ElseStatementList{});
},
"internal compiler error");
}
TEST_F(IfStatementTest, Assert_Null_Body) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.create<IfStatement>(b.Expr(true), nullptr, ElseStatementList{});
},
"internal compiler error");
}
TEST_F(IfStatementTest, Assert_Null_ElseStatement) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
auto* body = b.create<BlockStatement>(StatementList{});
b.create<IfStatement>(b.Expr(true), body, ElseStatementList{nullptr});
},
"internal compiler error");
}
TEST_F(IfStatementTest, Assert_DifferentProgramID_Cond) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<IfStatement>(b2.Expr(true), b1.Block(), ElseStatementList{});
},
"internal compiler error");
}
TEST_F(IfStatementTest, Assert_DifferentProgramID_Body) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<IfStatement>(b1.Expr(true), b2.Block(), ElseStatementList{});
},
"internal compiler error");
}
TEST_F(IfStatementTest, Assert_DifferentProgramID_ElseStatement) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<IfStatement>(
b1.Expr(true), b1.Block(),
ElseStatementList{
b2.create<ElseStatement>(b2.Expr("ident"), b2.Block()),
});
},
"internal compiler error");
}
TEST_F(IfStatementTest, ToStr) {
auto* cond = Expr("cond");
auto* stmt = create<IfStatement>(cond, Block(create<DiscardStatement>()),
ElseStatementList{});
EXPECT_EQ(str(stmt), R"(If{
(
Identifier[not set]{cond}
)
{
Discard{}
}
}
)");
}
TEST_F(IfStatementTest, ToStr_WithElseStatements) {
auto* cond = Expr("cond");
auto* body = Block(create<DiscardStatement>());
auto* else_if_body = Block(create<DiscardStatement>());
auto* else_body =
Block(create<DiscardStatement>(), create<DiscardStatement>());
auto* stmt = create<IfStatement>(
cond, body,
ElseStatementList{
create<ElseStatement>(Expr("ident"), else_if_body),
create<ElseStatement>(nullptr, else_body),
});
EXPECT_EQ(str(stmt), R"(If{
(
Identifier[not set]{cond}
)
{
Discard{}
}
}
Else{
(
Identifier[not set]{ident}
)
{
Discard{}
}
}
Else{
{
Discard{}
Discard{}
}
}
)");
}
} // namespace
} // namespace ast
} // namespace tint