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Groovy example source code file (ClosureMethodsOnFileTest.groovy)

This example Groovy source code file (ClosureMethodsOnFileTest.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

closure, closure, closuremethodsonfiletest, closuremethodsonfiletest, file, file, groovytestcase, groovytestcase

The Groovy ClosureMethodsOnFileTest.groovy source code

/*
 * Copyright 2003-2008 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 groovy

/** 
 * Tests various Closure methods in Groovy on file
 * 
 * @author <a href="mailto:james@coredevelopers.net">James Strachan
 * @version $Revision: 7355 $
 */
class ClosureMethodsOnFileTest extends GroovyTestCase {
    private File file = new File("src/test/groovy/Bar.groovy")
    private File dir = new File("src/test/groovy")

    protected void setUp() {
        if(!file.exists()) {
            file = new File("Bar.groovy")
        }
        if(!dir.exists()) {
            dir = new File(".")
        }
    }

    void testEachLine() {
        file.eachLine { line -> println(line) }
    }

    void testEachLineWithCount() {
        file.eachLine { line, count -> println "$count > $line" }
    }

    void testReadLines() {
        def lines = file.readLines()
        assert lines != null
        assert lines.size() > 0, "File has: ${lines.size()} line(s)"
    }

    void testEachFile() {
        println("Closure loop to display contents of dir: " + dir)
        dir.eachFile { f -> println(f.getName()) }
        println("")
    }
}

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