src/test/groovy/AssertTest.groovy

/*
 * Copyright 2003-2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package groovy

class AssertTest extends GroovyTestCase {

    void testAssert() {
        def x = null

        assert x == null
        assert x != "abc"
        assert x != "foo"

        x = "abc"

        assert x != "foo"
        assert x != null
        assert x != "def"
        assert x == "abc"

        assert x.equals("abc")

        assert !x.equals("def")
        assert !false
        assert !(1 == 2)
        assert !(1 > 3)
        assert !(1 != 1)
    }

    void testAssertFail() {
        def x = 1234

        def runCode = false
        try {
            runCode = true
            assert x == 5

            fail("Should have thrown an exception")
        }
        catch (AssertionError e) {
            //msg = "Expression: (x == 5). Values: x = 1234"
            //assert e.getMessage() == msg
            //assert e.message == msg
        }
        assert runCode, "has not ran the try / catch block code"
    }

    void testAssertMessageAndExpressionReversed() {
        try {
            // the order is wrong for this one ""=="" becomes
            // the assertion message string. Since it is an
            // expression it must made sure the expression is
            // transformed into an object
            assert "": "" == ""
        } catch (AssertionError ae) {
            assert ae.message.contains("true");
        }
    }

    // GROOVY-1769
    void testAssertWithNewlineAfterColonOrComma() {
        assert true:
            "Assert on newline after colon"

        assert true,
            "Assert on newline after comma"
    }
}