Codegen: Remove unnecessary initial variables #25
Description
Currently some unused variables are generated for expected field values in tests. They are not involved in asserts later.
For example, generate tests for ArraysOverwriteValue.objectArray from our samples.
@Test @DisplayName("objectArray: a[0] == null : True -> return 2") public void testObjectArray_0OfAEqualsNull() throws Throwable { ArraysOverwriteValue arraysOverwriteValue = new ArraysOverwriteValue(); ObjectWithPrimitivesClass[] objectWithPrimitivesClassArray = new ObjectWithPrimitivesClass[1]; //NOTE: this field is unused, we should not generate it. ObjectWithPrimitivesClass initialObjectWithPrimitivesClassArray0 = objectWithPrimitivesClassArray[0]; int actual = arraysOverwriteValue.objectArray(objectWithPrimitivesClassArray); assertEquals(2, actual); ObjectWithPrimitivesClass finalObjectWithPrimitivesClassArray0 = objectWithPrimitivesClassArray[0]; assertNull(finalObjectWithPrimitivesClassArray0); }We should avoid unused fields an corresponding warnings.
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