Groovy example source code file (Groovy2556Bug.groovy)

This example Groovy source code file (Groovy2556Bug.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

groovy2556bug, groovytestcase, map, map, some_method_value, some_method_value, string, string, test_name, test_name

The Groovy Groovy2556Bug.groovy source code

package groovy.bugs

class Groovy2556Bug extends GroovyTestCase {
    final String SOME_METHOD_VALUE = 'someMethodValue'
    final String TEST_NAME = 'someName'

    String s

    Map names

    void setUp() {
        names = [:]
    }

    private count = 0

    private getCount () {
        count++;
    }

    void testCompile () {
        new GroovyShell().parse ("""
        def arr = [2:0]
        assert 33 == (arr[2] += 33)
        """).run ()
    }

    void testAssignmentWithString() {
        assertEquals(SOME_METHOD_VALUE, someMethod())
    }

    void testAssignmentWithMap() {
        assertEquals(TEST_NAME, addName(TEST_NAME))
    }

    void testAssignmentWithReturnMap() {
        assertEquals(TEST_NAME, addNameWithReturn(TEST_NAME))
    }

    String someMethod() {
        s = SOME_METHOD_VALUE
    }

    String addName(String name) {
        names[name] = name
    }

    String addNameWithReturn(String name) {
        return names[name] = name
    }

    void testArrayAssignment() {
        def arr = [*0..4]
        assert 33 == (arr[2] = 33)
        assert 55 == (arr[2] += 22)
    }

    void testArrayAssignmentInClosure() {
        def arr = [*0..4]
        assert 55 == { arr[2] = 55 }.call()
        assert 88 == { arr[2] += 33 }.call()
    }

    void testVarAssignment() {
        def var = 1
        assert 77 == ( var = 77)
    }

    void testVarAssignmentInClosure() {
        def var = 1
        assert 22 == { var = 22 }.call()
        assert 55 == { var += 33 }.call()
    }

    void testReusableExpression() {
        def arr = [*1..5]
        assert 34 == (arr[getCount()] += 33)
        assert 34 == arr [0]
        assert 2 == arr [getCount()]
    }
}