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/*
* java-gnome, a UI library for writing GTK and GNOME programs from Java!
*
* Copyright © 2009-2010 Operational Dynamics Consulting, Pty Ltd
*
* The code in this file, and the program it is a part of, is made available
* to you by its authors as open source software: you can redistribute it
* and/or modify it under the terms of the GNU General Public License version
* 2 ("GPL") as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GPL for more details.
*
* You should have received a copy of the GPL along with this program. If not,
* see http://www.gnu.org/licenses/. The authors of this program may be
* contacted through http://java-gnome.sourceforge.net/.
*/
package org.gnome.rsvg;
/*
* Inspired by org.gnome.gdk.ValidateImageHandling
*/
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import org.freedesktop.cairo.Context;
import org.freedesktop.cairo.Format;
import org.freedesktop.cairo.ImageSurface;
import org.freedesktop.cairo.Surface;
import org.gnome.gdk.Pixbuf;
import org.gnome.gtk.GraphicalTestCase;
/**
* @author Andrew Cowie
*/
public class ValidateVectorIllustrations extends GraphicalTestCase
{
/*
* Is this actually necessary?
*/
public final void testInitializing() {
Rsvg.init();
}
public final void testLoadingFromFile() {
try {
new Handle("Linux_Tux.svg");
fail("Should have complained not being able to find file");
} catch (FileNotFoundException fnfe) {
// good
}
try {
new Handle("README.markdown");
fail("Specified file not an image, should have thrown");
} catch (RuntimeException re) {
// good
} catch (FileNotFoundException fnfe) {
fail("Should have found non-image file");
}
try {
new Handle("tests/bindings/org/gnome/rsvg/Linux_Tux.svg");
} catch (FileNotFoundException fnfe) {
fail("Target file should exist. Did someone move the test image?");
}
}
public final void testHandleMethods() throws IOException {
final Handle graphic;
final DimensionData dim;
graphic = new Handle("tests/bindings/org/gnome/rsvg/Linux_Tux.svg");
dim = graphic.getDimensions();
assertEquals(334, dim.getWidth());
assertEquals(393, dim.getHeight());
assertEquals(90.0, graphic.getDPIX());
assertEquals(90.0, graphic.getDPIY());
}
public final void testHandleRendering() throws IOException {
final Handle graphic;
final Surface surface;
final Context cr;
final File target;
final int width;
surface = new ImageSurface(Format.ARGB32, 400, 500);
cr = new Context(surface);
graphic = new Handle("tests/bindings/org/gnome/rsvg/Linux_Tux.svg");
cr.showHandle(graphic);
/*
* Ok, so we've exercised the code paths. How can we actually validate
* it? TODO This isn't much of a test; as written it just traverses
* the Cairo ImageSurface logic which isn't anything to do with
* whether or not our graphic got rendered to it.
*/
target = new File("tmp/tests/org/gnome/rsvg/Linux_Tux.png");
if (target.exists()) {
target.delete();
}
surface.writeToPNG("tmp/tests/org/gnome/rsvg/Linux_Tux.png");
surface.finish();
assertTrue(target.exists());
width = Pixbuf.getFileInfoWidth("tmp/tests/org/gnome/rsvg/Linux_Tux.png");
assertEquals(400, width);
}
}
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