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Added tests for CHARACTERS_COLLISION_IN_SET.

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Ivan Kochurkin 2016-12-15 16:12:15 +03:00 committed by parrt
parent 75d5db5941
commit 1d53b416ee
1 changed files with 17 additions and 0 deletions
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17
tool-testsuite/test/org/antlr/v4/test/tool/TestSymbolIssues.java
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@ -320,4 +320,21 @@ public class TestSymbolIssues extends BaseJavaToolTest {
testErrors(test, false);
}
@Test public void testCharsCollision() throws Exception {
String[] test = {
"lexer grammar L;\n" +
"TOKEN_RANGE: [aa-f];\n" +
"TOKEN_RANGE_2: [A-FD-J];\n" +
"TOKEN_RANGE_3: 'Z' | 'K'..'R' | 'O'..'V';\n" +
"TOKEN_RANGE_4: 'g'..'l' | [g-l];\n", // Handling in ATNOptimizer.
"warning(" + ErrorType.CHARACTERS_COLLISION_IN_SET.code + "): L.g4:2:18: chars \"a-f\" declared multiply times in set [aa-f]\n" +
"warning(" + ErrorType.CHARACTERS_COLLISION_IN_SET.code + "): L.g4:3:18: chars \"D-J\" declared multiply times in set [A-FD-J]\n" +
"warning(" + ErrorType.CHARACTERS_COLLISION_IN_SET.code + "): L.g4:4:13: chars \"O-V\" declared multiply times in set 'Z' | 'K'..'R' | 'O'..'V'\n" +
"warning(" + ErrorType.CHARACTERS_COLLISION_IN_SET.code + "): L.g4::: chars \"g-l\" declared multiply times in set [g-l]\n"
};
testErrors(test, false);
}
}