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/*******************************************************************************
* Copyright (c) 2009 Mat Booth and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*******************************************************************************/
package org.eclipse.dltk.sh.ui.text.tests;
import org.eclipse.dltk.sh.ui.text.DollarBraceCountingRule;
import org.eclipse.dltk.sh.ui.text.IShellPartitions;
import org.eclipse.jface.text.rules.Token;
import org.junit.Assert;
import org.junit.Test;
/**
* Tests the dollar-prefixed brace-counting single-line rule. Basically we're
* testing to make sure syntax highlighting is correct for ${} and $() blocks.
*/
public class DollarBraceCountingRuleTest {
// Mock objects
private MockScanner fScanner;
// Objects under test
private static DollarBraceCountingRule fRule = new DollarBraceCountingRule(
'{', '}', new Token(IShellPartitions.PARAM_CONTENT_TYPE), '\\');
/**
* Highlight a simple pair of dollar-prefixed braces.
*/
@Test
public void testSimpleMatch() {
fScanner = new MockScanner("${basic}test}");
Assert.assertFalse(fRule.evaluate(fScanner).isUndefined());
Assert.assertEquals("${basic}", fScanner.getBuffer().substring(0,
fScanner.getOffset()));
}
/**
* Highlight a pair of braces enclosing escaped braces.
*/
@Test
public void testEscapedBraceMatch() {
fScanner = new MockScanner("${basic\\}\\}}test}");
Assert.assertFalse(fRule.evaluate(fScanner).isUndefined());
Assert.assertEquals("${basic\\}\\}}", fScanner.getBuffer().substring(0,
fScanner.getOffset()));
}
/**
* Highlight the correct amount of nested braces.
*/
@Test
public void testNestedBraceMatch() {
fScanner = new MockScanner("${a{b{cd}e}f}g}");
Assert.assertFalse(fRule.evaluate(fScanner).isUndefined());
Assert.assertEquals("${a{b{cd}e}f}", fScanner.getBuffer().substring(0,
fScanner.getOffset()));
}
/**
* Highlight everything up to the end of the line, if that occurs before the
* final closing brace.
*/
@Test
public void testEndOfLineMatch() {
fScanner = new MockScanner("${a{b}c\nd}");
Assert.assertFalse(fRule.evaluate(fScanner).isUndefined());
Assert.assertEquals("${a{b}c\n", fScanner.getBuffer().substring(0,
fScanner.getOffset()));
}
/**
* Do not highlight if EOF interrupts the pattern.
*/
@Test
public void testEndOfFileMatch() {
fScanner = new MockScanner("${end of file is here:");
Assert.assertTrue(fRule.evaluate(fScanner).isUndefined());
Assert.assertEquals("", fScanner.getBuffer().substring(0,
fScanner.getOffset()));
}
}
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