Groovy example source code file (SubscriptAndExpressionBug.groovy)

This example Groovy source code file (SubscriptAndExpressionBug.groovy) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Groovy tags/keywords

groovytestcase, groovytestcase, subscriptandexpressionbug, subscriptandexpressionbug

The Groovy SubscriptAndExpressionBug.groovy source code

package groovy.bugs

class SubscriptAndExpressionBug extends GroovyTestCase {
    
    void testBug() {
        def foo = ["nice cheese grommit"]
        
        def cheese = foo[0].startsWith("nice")
        
        assert cheese == true
    }

    void testSubscriptIncrement() {
        def foo = [5, 6, 7]
        foo[0] += 5
        
        assert foo[0] == 10
        
        def i = 0
        foo[i++] = 1
        assert foo[0] == 1
        assert i == 1
        
        foo[i++] += 5
        assert i == 2
        assert foo[1] == 11
    }

    void testLargeSubscript() {
        def foo = [1]
        
        foo[10] = 123
        
        assert foo[10] == 123
        
        foo.putAt(12, 55)
        assert foo[12] == 55
        
        def i = 20
        foo[i] = 1
        foo[i++] += 5
        
        assert i == 21
        assert foo[20] == 6
    }
    
    void testDoubleSubscript() {
        def foo = ["nice cheese grommit"]
        
        def cheese = foo[0][5..10]
        
        assert cheese == "cheese"
    }
    
    void testSubscriptAndProperty() {
        def foo = [['gromit':'cheese']]
        
        def cheese = foo[0].gromit
        
        assert cheese == "cheese"
    }
    
    void testBooleanExpression() {
       int[] a = new int[1]
       assert (a[0] = 42) == 42 
       assert a[0] == 42
    }
}