Groovy example source code file (GroovyCodeSourceTest.groovy)

This example Groovy source code file (GroovyCodeSourceTest.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

file, file, groovycodesource, groovycodesource, groovycodesourcetest, groovycodesourcetest, groovytestcase, ioexception, nullpointerexception, someclass, somefilethatdoesnotexist, string, utf-8, utf-8

The Groovy GroovyCodeSourceTest.groovy source code

/*
 * 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.lang

/**
 * @author Merlyn Albery-Speyer
 */
class GroovyCodeSourceTest extends GroovyTestCase {
    void testValidEncoding() {
        new GroovyCodeSource(createTemporaryGroovyClassFile(), "UTF-8")
    }

    void testInvalidEncoding() {
        try {
            new GroovyCodeSource(createTemporaryGroovyClassFile(), "non-existant encoding")
            fail("expected exception")
        } catch (UnsupportedEncodingException e) {
            assert "non-existant encoding" == e.getMessage()
        }
    }

    void testInvalidFile() {
        try {
            new GroovyCodeSource(new File("SomeFileThatDoesNotExist"+System.currentTimeMillis()), "UTF-8")
            fail("expected IOException")
        } catch (IOException) {
            assert true
        }
    }

    void testRuntimeException() {
        try {
            new GroovyCodeSource(null, "UTF-8")
            fail("expected NullPointerException")
        } catch (NullPointerException) {
            assert true
        }
    }

    File createTemporaryGroovyClassFile() {
        String testName = "GroovyCodeSourceTest"+System.currentTimeMillis()
        File groovyCode = new File(System.getProperty("java.io.tmpdir"), testName)
        groovyCode.write("class SomeClass { }")
        groovyCode.deleteOnExit()
        return groovyCode
    }
}