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added hosting test for unordered groups

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overflowerror 2021-11-27 19:50:44 +01:00
parent ef91f872ef
commit 5110d180b7
1 changed files with 18 additions and 0 deletions

18
org.eclipse.xtext.tests/src/org/eclipse/xtext/xtext/generator/hoisting/HoistingProcessorTest.java
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@ -272,6 +272,24 @@ public class HoistingProcessorTest extends AbstractXtextTests {
assertEquals("((" + getSyntaxForKeywordToken("s", 1) + " || (p1)) && (" + getSyntaxForKeywordToken("a", 1) + " || (p0)))", guard.render());
}
@Test
public void testUnorderedGroups() throws Exception {
// @formatter:off
String model =
MODEL_PREAMBLE +
"S: (($$ p0 $$?=> 'a') & ($$ p1 $$?=> 'b')) $$ p2 $$?=> 's';";
// @formatter:off
XtextResource resource = getResourceFromString(model);
Grammar grammar = ((Grammar) resource.getContents().get(0));
AbstractRule rule = getRule(grammar, "S");
HoistingGuard guard = hoistingProcessor.findGuardForElement(rule.getAlternatives());
assertFalse(guard.isTrivial());
assertTrue(guard.hasTerminal());
assertEquals("((" + getSyntaxForKeywordToken("a", 1) + " || (p0)) && (" + getSyntaxForKeywordToken("b", 1) + " || (p1)) && (" + getSyntaxForKeywordToken("c", 1) + " || (p2)))", guard.render());
}
@Test
public void testAlternativeNoToken() throws Exception {
// @formatter:off