@Test
public void
evaluatingAParsedCoalesceExpression_NullAndAStringWithQuotationMarks_RetunsQuotationMarks()
throws Exception {
Expression e = Coalesce.parse("null ?? \"\\\"\\\"\\\"\\\"\"");
assertThat(e.evaluate(), is(equalTo("\\\"\\\"\\\"\\\"")));
}
@Test
public void evaluateCoalesceExpression_NotNullOnLeft_ReturnsLeft() throws Exception {
Expression e = coalesce(constant("1"), constant("2"));
assertThat(e.evaluate(), is(equalTo("1")));
}
@Test
public void evaluatingAParsedCoalesceExpression_AAndB_RetunsA() throws Exception {
Expression e = Coalesce.parse("\"a\" ?? \"b\"");
assertThat(e.evaluate(), is(equalTo("a")));
}