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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/fallthrough_statement.h"
#include "src/tint/reader/wgsl/parser_impl_test_helper.h"
namespace tint::reader::wgsl {
namespace {
TEST_F(ParserImplTest, CaseBody_Empty) {
auto p = parser("");
auto e = p->case_body();
ASSERT_FALSE(p->has_error()) << p->error();
EXPECT_FALSE(e.errored);
EXPECT_TRUE(e.matched);
EXPECT_EQ(e->statements.size(), 0u);
}
TEST_F(ParserImplTest, CaseBody_Statements) {
auto p = parser(R"(
var a: i32;
a = 2;)");
auto e = p->case_body();
ASSERT_FALSE(p->has_error()) << p->error();
EXPECT_FALSE(e.errored);
EXPECT_TRUE(e.matched);
ASSERT_EQ(e->statements.size(), 2u);
EXPECT_TRUE(e->statements[0]->Is<ast::VariableDeclStatement>());
EXPECT_TRUE(e->statements[1]->Is<ast::AssignmentStatement>());
}
TEST_F(ParserImplTest, CaseBody_InvalidStatement) {
auto p = parser("a =");
auto e = p->case_body();
EXPECT_TRUE(p->has_error());
EXPECT_TRUE(e.errored);
EXPECT_FALSE(e.matched);
EXPECT_EQ(e.value, nullptr);
}
TEST_F(ParserImplTest, CaseBody_Fallthrough) {
auto p = parser("fallthrough;");
auto e = p->case_body();
ASSERT_FALSE(p->has_error()) << p->error();
EXPECT_FALSE(e.errored);
EXPECT_TRUE(e.matched);
ASSERT_EQ(e->statements.size(), 1u);
EXPECT_TRUE(e->statements[0]->Is<ast::FallthroughStatement>());
}
TEST_F(ParserImplTest, CaseBody_Fallthrough_MissingSemicolon) {
auto p = parser("fallthrough");
auto e = p->case_body();
EXPECT_TRUE(p->has_error());
EXPECT_TRUE(e.errored);
EXPECT_FALSE(e.matched);
EXPECT_EQ(e.value, nullptr);
EXPECT_EQ(p->error(), "1:12: expected ';' for fallthrough statement");
}
} // namespace
} // namespace tint::reader::wgsl