src/test/groovy/bugs/Groovy3718Bug.groovy

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 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
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 *
 *    http://www.apache.org/licenses/LICENSE-2.0
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 *  KIND, either express or implied.  See the License for the
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package groovy.bugs

import groovy.test.GroovyTestCase

class Groovy3718Bug extends GroovyTestCase {
    void testPatternMatchOfNull() {
        assertFalse null ==~ /[^0-9]+/
        
        assertFalse null ==~ /[0-9]+/

        assertFalse "test" ==~ null
        
        assertFalse null ==~ null
    }
}