class ArrayCoerceTest extends GroovyTestCase { Object[] field Long[] numberField int[] primitiveField void testStaticallyTypedPrimitiveTypeArrays() { int[] a = [1, 2, 3] assert a instanceof int[] assert a.length == 3 dump(a) } void testStaticallyTypedPrimitiveFieldArrays() { primitiveField = [1, 2, 3] dump(primitiveField) assert primitiveField instanceof int[] assert primitiveField.length == 3 } void testFoo2() { def x = [1, 2, 3] as Object[] dump(x) assert x instanceof Object[] def c = x.getClass() def et = c.componentType assert et == Object.class } void testStaticallyTypedObjectArrays() { Object[] b = [1, 2, 3] dump(b) assert b instanceof Object[] assert b.length == 3 def c = b.getClass() def et = c.componentType assert et == Object.class } void testStaticallyTypedArrays() { Integer[] b = [1, 2, 3] dump(b) assert b instanceof Integer[] assert b.length == 3 def c = b.getClass() def et = c.componentType assert et == Integer.class } void testStaticallyTypedObjectFieldArrays() { field = [1, 2, 3] dump(field) assert field instanceof Object[] assert field.length == 3 } void testStaticallyTypedFieldArrays() { numberField = [1, 2, 3] dump(numberField) assert numberField instanceof Long[] assert numberField.length == 3 } void testMakePrimitiveArrayTypes() { def x = null x = [1, 0, 1] as boolean[] assert x instanceof boolean[] assert x.length == 3 dump(x) x = [1, 2, 3] as byte[] assert x.length == 3 assert x instanceof byte[] dump(x) x = [1, 2, 3] as char[] assert x.length == 3 assert x instanceof char[] dump(x) x = [1, 2, 3] as short[] assert x.length == 3 assert x instanceof short[] dump(x) x = [1, 2, 3] as int[] assert x.length == 3 assert x instanceof int[] dump(x) x = [1, 2, 3] as long[] assert x.length == 3 assert x instanceof long[] dump(x) x = [1, 2, 3] as float[] assert x.length == 3 assert x instanceof float[] dump(x) x = [1, 2, 3] as double[] assert x.length == 3 assert x instanceof double[] dump(x) } void testAsObjectArray() { def x = [1, 2, 3] as Object[] def c = x.getClass() def et = c.componentType assert et == Object.class dump(x) Integer[] y = [1, 2, 3] c = y.getClass() et = c.componentType assert et == Integer.class dump(y) } void testMakeArrayThenCoerceToAnotherType() { def x = [1, 2, 3] as int[] assert x.size() == 3 assert x instanceof int[] dump(x) // lets try coerce it into an array of longs def y = x as long[] assert y instanceof long[] dump(y) def z = y as Object[] assert z instanceof Object[] def c = z.getClass() def et = c.componentType assert et == Object.class dump(z) x = y as int[] assert x.size() == 3 assert x instanceof int[] dump(x) } void testMakeArrayTypes() { def x = null x = [1, 0, 1] as Boolean[] assert x instanceof Boolean[] assert x.length == 3 dump(x) x = [1, 2, 3] as Byte[] assert x.length == 3 assert x instanceof Byte[] dump(x) x = [1, 2, 3] as Character[] assert x.length == 3 assert x instanceof Character[] dump(x) x = [1, 2, 3] as Short[] assert x.length == 3 assert x instanceof Short[] dump(x) x = [1, 2, 3] as Integer[] assert x.length == 3 assert x instanceof Integer[] dump(x) x = [1, 2, 3] as Long[] assert x.length == 3 assert x instanceof Long[] dump(x) x = [1, 2, 3] as Float[] assert x.length == 3 assert x instanceof Float[] dump(x) x = [1, 2, 3] as Double[] assert x.length == 3 assert x instanceof Double[] dump(x) } void dump(array) { println "Array is of type ${array.class} which has element type ${array.class.componentType}" for (i in array) { println "Contains entry $i of type ${i.class}" } println() } }
