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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/reader/wgsl/parser_impl_test_helper.h"
namespace tint::reader::wgsl {
namespace {
TEST_F(ParserImplTest, ParenRhsStmt) {
auto p = parser("(a + b)");
auto e = p->expect_paren_rhs_stmt();
ASSERT_FALSE(p->has_error()) << p->error();
ASSERT_FALSE(e.errored);
ASSERT_NE(e.value, nullptr);
ASSERT_TRUE(e->Is<ast::BinaryExpression>());
}
TEST_F(ParserImplTest, ParenRhsStmt_MissingLeftParen) {
auto p = parser("true)");
auto e = p->expect_paren_rhs_stmt();
ASSERT_TRUE(p->has_error());
ASSERT_TRUE(e.errored);
ASSERT_EQ(e.value, nullptr);
EXPECT_EQ(p->error(), "1:1: expected '('");
}
TEST_F(ParserImplTest, ParenRhsStmt_MissingRightParen) {
auto p = parser("(true");
auto e = p->expect_paren_rhs_stmt();
ASSERT_TRUE(p->has_error());
ASSERT_TRUE(e.errored);
ASSERT_EQ(e.value, nullptr);
EXPECT_EQ(p->error(), "1:6: expected ')'");
}
TEST_F(ParserImplTest, ParenRhsStmt_InvalidExpression) {
auto p = parser("(if (a() {})");
auto e = p->expect_paren_rhs_stmt();
ASSERT_TRUE(p->has_error());
ASSERT_TRUE(e.errored);
ASSERT_EQ(e.value, nullptr);
EXPECT_EQ(p->error(), "1:2: unable to parse expression");
}
TEST_F(ParserImplTest, ParenRhsStmt_MissingExpression) {
auto p = parser("()");
auto e = p->expect_paren_rhs_stmt();
ASSERT_TRUE(p->has_error());
ASSERT_TRUE(e.errored);
ASSERT_EQ(e.value, nullptr);
EXPECT_EQ(p->error(), "1:2: unable to parse expression");
}
} // namespace
} // namespace tint::reader::wgsl