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Groovy example source code file (ValueRenderingTest.groovy)

This example Groovy source code file (ValueRenderingTest.groovy) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

emptytostring, emptytostring, groovytestcase, multilinetostring, multilinetostring, nulltostring, singlelinetostring, singlelinetostring, string, string, stringbuffer, throwingtostring, unsupportedoperationexception, valuerenderingtest

The Groovy ValueRenderingTest.groovy source code

/*
 * Copyright 2008 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 org.codehaus.groovy.runtime.powerassert

import static AssertionTestUtil.*

/**
 * Tests rendering of individual values.
 *
 * @author Peter Niederwieser
 */

class ValueRenderingTest extends GroovyTestCase {
    void testNullValue() {
        isRendered """
assert x
       |
       null
        """, {
            def x = null
            assert x
        }
    }

    void testCharValue() {
        isRendered """
assert x == null
       | |
       c false
        """, {
            def x = "c" as char
            assert x == null
        }
    }

    void testStringValue() {
        isRendered """
assert x == null
       | |
       | false
       foo
        """, {
            def x = "foo"
            assert x == null
        }
    }

    void testMultiLineStringValue() {
        isRendered """
assert null == x
            |  |
            |  one
            |  two
            |  three
            |  four
            false
        """, {
            def x = "one\ntwo\rthree\r\nfour"
            assert null == x
        }
    }

    void testPrimitiveArrayValue() {
        isRendered """
assert x == null
       | |
       | false
       [1, 2]
        """, {
            def x = [1, 2] as int[]
            assert x == null
        }
    }

    void testObjectArrayValue() {
        isRendered """
assert x == null
       | |
       | false
       [one, two]
        """, {
            def x = ["one", "two"] as String[]
            assert x == null
        }
    }

    void testEmptyStringValue() {
        def x = new String()

        isRendered '''
assert x == null
       | |
       | false
       ""
        ''', {
            assert x == null
        }
    }

    void testEmptyStringBuilderValue() {
        def x = new StringBuilder()

        isRendered '''
assert x == null
       | |
       | false
       ""
        ''', {
            assert x == null
        }
    }

    void testEmptyStringBufferValue() {
        def x = new StringBuffer()

        isRendered '''
assert x == null
       | |
       | false
       ""
        ''', {
            assert x == null
        }
    }

    void testSingleLineToString() {
        isRendered """
assert x == null
       | |
       | false
       single line
        """, {
            def x = new SingleLineToString()
            assert x == null
        }
    }

    void testMultiLineToString() {
        isRendered """
assert x == null
       | |
       | false
       mul
       tiple
          lines
        """, {
            def x = new MultiLineToString()
            assert x == null
        }
    }

    void testNullToString() {
        def x = new NullToString()

        isRendered """
assert x == null
       | |
       | false
       ${x.objectToString()} (toString() == null)
        """, {
            assert x == null
        }
    }

    void testEmptyToString() {
        def x = new EmptyToString()

        isRendered """
assert x == null
       | |
       | false
       ${x.objectToString()} (toString() == \"\")
        """, {
            assert x == null
        }
    }

    void testThrowingToString() {
        def x = new ThrowingToString()

        isRendered """
assert x == null
       | |
       | false
       ${x.objectToString()} (toString() threw java.lang.UnsupportedOperationException)
        """, {
            assert x == null
        }
    }
}

private class SingleLineToString {
    String toString() {
        "single line"
    }
}

private class MultiLineToString {
    String toString() {
        "mul\ntiple\n   lines"
    }
}

private class NullToString {
    String objectToString() {
        super.toString()
    }

    String toString() { null }
}

private class EmptyToString {
    String objectToString() {
        super.toString()
    }

    String toString() { "" }
}

private class ThrowingToString {
    String objectToString() {
        super.toString()
    }

    String toString() {
        throw new UnsupportedOperationException()
    }
}

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