| // Copyright 2023 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/lang/wgsl/reader/parser/helper_test.h" |
| |
| namespace tint::wgsl::reader { |
| namespace { |
| |
| using RequiresDirectiveTest = WGSLParserTest; |
| |
| // Test a valid require directive. |
| // There currently are no valid require directives |
| TEST_F(RequiresDirectiveTest, DISABLED_Valid) { |
| auto p = parser("requires <sometime>;"); |
| p->requires_directive(); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| } |
| |
| // Test an unknown require identifier. |
| TEST_F(RequiresDirectiveTest, InvalidIdentifier) { |
| auto p = parser("requires NotAValidRequireName;"); |
| p->requires_directive(); |
| // Error when unknown require found |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), R"(1:10: feature 'NotAValidRequireName' is not supported)"); |
| } |
| |
| // Test the special error message when require are used with parenthesis. |
| TEST_F(RequiresDirectiveTest, ParenthesisSpecialCase) { |
| auto p = parser("requires(Something);"); |
| p->translation_unit(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:9: requires directives don't take parenthesis"); |
| } |
| |
| // Test using invalid tokens in an require directive. |
| TEST_F(RequiresDirectiveTest, InvalidTokens) { |
| { |
| auto p = parser("requires <Something;"); |
| p->translation_unit(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), R"(1:10: invalid feature name for requires)"); |
| } |
| { |
| auto p = parser("requires =;"); |
| p->translation_unit(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), R"(1:10: invalid feature name for requires)"); |
| } |
| |
| { |
| auto p = parser("requires;"); |
| p->translation_unit(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), R"(1:9: missing feature names in requires directive)"); |
| } |
| } |
| |
| } // namespace |
| } // namespace tint::wgsl::reader |