Assert.assertTrue(efs.evaluate("D", ff4j.getStore(), null));
Assert.assertTrue(efs.evaluate("TOTO", ff4j.getStore(), null));
FlippingExecutionContext fex = new FlippingExecutionContext();
fex.putString(ExpressionFlipStrategy.PARAM_EXPRESSION, "D");
Assert.assertTrue(efs.evaluate("D", ff4j.getStore(), fex));
fex.putString(ExpressionFlipStrategy.PARAM_EXPRESSION, "TOTO");
Assert.assertFalse(efs.evaluate("D", ff4j.getStore(), fex));
}