Xtext: Testing whitespace language - missing RULE_BEGIN in JUnit - junit

Question

I have this fancy white space language and I'm traing to test it. For now grammar is simple (base on Terminals)
Model:
{Model}
BEGIN
package=PackageDeclaration?
class=ClassDeclaration?
END
methods+=MethodDeclaration*
;
PackageDeclaration: 'package' name=ID;
ClassDeclaration: 'class' name=ID;
MethodDeclaration: 'def' name=ID;
terminal BEGIN:
'synthetic:BEGIN';
terminal END:
'synthetic:END';
And now when it comes to JUnit:
#Test
def void packageSimpleNoErrors() {
val result = '''
package testPack
'''.parse
// Parsed without errors
result.assertNoErrors
}
Multiline string is 2x new line, tab, 'package testPack' and new line.
Checked with debug in parse method.
If I put it this way in Eclipse editor it is completly fine, no problems. But I can't make JUnit to pass this test:
java.lang.AssertionError: Expected no errors,
but got :ERROR (org.eclipse.xtext.diagnostics.Diagnostic.Syntax)
'missing RULE_BEGIN at 'package’’ on PackageDeclaration,
ERROR (org.eclipse.xtext.diagnostics.Diagnostic.Syntax)
'mismatched input '<EOF>' expecting RULE_END' on Model
For now it's not a show stoper as rest of test on this code are looking fine, but I prefer to have them all green :)
Thanks

Answer 1

the problem is that rich stings empty lines get lost by intent. maybe you should read the model from a file or try something
'''
«"\n"»
package testPack
'''.parse