Groovy example source code file (IndentPrinterTest.groovy)

This example Groovy source code file (IndentPrinterTest.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

groovytestcase, indentprinter, indentprinter, indentprintertest, indentprintertest, printwriter, printwriter, stringwriter, stringwriter

The Groovy IndentPrinterTest.groovy source code

package groovy.util

/**
 * Unit test for IndentPrinter.
 * @author Hamlet D'Arcy
 */
class IndentPrinterTest extends GroovyTestCase {

    public void testSimpleIndentation() {
        def out = new StringWriter()

        def printer = new IndentPrinter(new PrintWriter(out))

        printer.printIndent()
        printer.println 'parent'
        printer.incrementIndent()
        printer.printIndent()
        printer.println 'child'
        printer.decrementIndent()
        printer.printIndent()
        printer.println 'parent2'
        printer.flush()

        assert 'parent\n  child\nparent2\n' == out.toString()
    }

    public void testInWithBlock() {
        def out = new StringWriter()
        new IndentPrinter(new PrintWriter(out)).with { p ->
            p.printIndent()
            p.println('parent1')
            p.incrementIndent()
            p.printIndent()
            p.println('child 1')
            p.printIndent()
            p.println('child 2')
            p.decrementIndent()
            p.printIndent()
            p.println('parent2')
            p.flush()
        }
        assert 'parent1\n  child 1\n  child 2\nparent2\n' == out.toString()
    }
}