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Better writer tests.

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Fixed a bug in PICTWriter.
Minor changes in ImageReader/WriterBase classes.
This commit is contained in:
Harald Kuhr
2012-03-30 16:58:09 +02:00
parent 7431065519
commit 0307237852
7 changed files with 243 additions and 41 deletions
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imageio/imageio-core/src/test/java/com/twelvemonkeys/imageio/util/ImageWriterAbstractTestCase.java
+52 -21
View File
@@ -36,9 +36,12 @@ import javax.imageio.ImageWriteParam;
import javax.imageio.ImageWriter;
import javax.imageio.event.IIOWriteProgressListener;
import javax.imageio.stream.ImageOutputStream;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.image.RenderedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.List;
import static org.junit.Assert.*;
import static org.mockito.Matchers.anyInt;
@@ -55,7 +58,32 @@ public abstract class ImageWriterAbstractTestCase {
protected abstract ImageWriter createImageWriter();
protected abstract RenderedImage getTestData();
protected abstract List<? extends RenderedImage> getTestData();
protected static BufferedImage drawSomething(final BufferedImage image) {
Graphics2D g = image.createGraphics();
try {
int width = image.getWidth();
int height = image.getHeight();
g.clearRect(0, 0, width, height);
g.setPaint(new LinearGradientPaint(0, 0, width, 0, new float[] {0.2f, 1}, new Color[] {new Color(0x0, true), Color.BLUE}));
g.fillRect(0, 0, width, height);
g.setPaint(new LinearGradientPaint(0, 0, 0, height, new float[] {0.2f, 1}, new Color[] {new Color(0x0, true), Color.RED}));
g.fillRect(0, 0, width, height);
g.setPaint(new LinearGradientPaint(0, 0, 0, height, new float[] {0, 1}, new Color[] {new Color(0x00ffffff, true), Color.WHITE}));
g.fill(new Polygon(new int[] {0, width, width}, new int[] {0, height, 0}, 3));
}
finally {
g.dispose();
}
return image;
}
protected final RenderedImage getTestData(final int index) {
return getTestData().get(index);
}
@Test
public void testSetOutput() throws IOException {
@@ -76,21 +104,24 @@ public abstract class ImageWriterAbstractTestCase {
@Test
public void testWrite() throws IOException {
ImageWriter writer = createImageWriter();
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ImageOutputStream stream = ImageIO.createImageOutputStream(buffer);
writer.setOutput(stream);
try {
writer.write(getTestData());
}
catch (IOException e) {
fail(e.getMessage());
}
finally {
stream.close(); // Force data to be written
}
for (RenderedImage testData : getTestData()) {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ImageOutputStream stream = ImageIO.createImageOutputStream(buffer);
writer.setOutput(stream);
assertTrue("No image data written", buffer.size() > 0);
try {
writer.write(drawSomething((BufferedImage) testData));
}
catch (IOException e) {
fail(e.getMessage());
}
finally {
stream.close(); // Force data to be written
}
assertTrue("No image data written", buffer.size() > 0);
}
}
@Test
@@ -116,7 +147,7 @@ public abstract class ImageWriterAbstractTestCase {
ImageWriter writer = createImageWriter();
try {
writer.write(getTestData());
writer.write(getTestData(0));
}
catch (IOException e) {
fail(e.getMessage());
@@ -155,7 +186,7 @@ public abstract class ImageWriterAbstractTestCase {
writer.addIIOWriteProgressListener(listener);
try {
writer.write(getTestData());
writer.write(getTestData(0));
}
catch (IOException e) {
fail("Could not write image");
@@ -183,7 +214,7 @@ public abstract class ImageWriterAbstractTestCase {
writer.addIIOWriteProgressListener(listenerThree);
try {
writer.write(getTestData());
writer.write(getTestData(0));
}
catch (IOException e) {
fail("Could not write image");
@@ -228,7 +259,7 @@ public abstract class ImageWriterAbstractTestCase {
writer.removeIIOWriteProgressListener(listener);
try {
writer.write(getTestData());
writer.write(getTestData(0));
}
catch (IOException e) {
fail("Could not write image");
@@ -253,7 +284,7 @@ public abstract class ImageWriterAbstractTestCase {
writer.removeIIOWriteProgressListener(listener);
try {
writer.write(getTestData());
writer.write(getTestData(0));
}
catch (IOException e) {
fail("Could not write image");
@@ -283,7 +314,7 @@ public abstract class ImageWriterAbstractTestCase {
writer.removeAllIIOWriteProgressListeners();
try {
writer.write(getTestData());
writer.write(getTestData(0));
}
catch (IOException e) {
fail("Could not write image");
@@ -309,7 +340,7 @@ public abstract class ImageWriterAbstractTestCase {
writer.removeAllIIOWriteProgressListeners();
try {
writer.write(getTestData());
writer.write(getTestData(0));
}
catch (IOException e) {
fail("Could not write image");