/* constructors.java -- some checks for the constructors in the
ComponentSampleModel class.
Copyright (C) 2006 David Gilbert <david.gilbert@object-refinery.com>
This file is part of Mauve.
Mauve is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
Mauve 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 GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with Mauve; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
*/
// Tags: JDK1.4
// Uses: MyComponentSampleModel
package gnu.testlet.java.awt.image.ComponentSampleModel;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import java.awt.image.ComponentSampleModel;
import java.awt.image.DataBuffer;
import java.util.Arrays;
public class constructors implements Testlet
{
public void test(TestHarness harness)
{
testConstructor1(harness);
testConstructor2(harness);
testDefensiveCopies(harness);
}
public void testConstructor1(TestHarness harness)
{
harness.checkPoint("testConstructor1()");
ComponentSampleModel m = new ComponentSampleModel(DataBuffer.TYPE_BYTE,
10, 20, 3, 30, new int[] {0, 1, 2});
harness.check(m.getDataType(), DataBuffer.TYPE_BYTE);
harness.check(m.getWidth(), 10);
harness.check(m.getHeight(), 20);
harness.check(m.getPixelStride(), 3);
harness.check(m.getScanlineStride(), 30);
harness.check(Arrays.equals(m.getBandOffsets(), new int[] {0, 1, 2}));
// try bad type
boolean pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_UNDEFINED, 10, 20, 3, 30,
new int[] {0, 1, 2});
}
catch (IllegalArgumentException e)
{
pass = true;
}
harness.check(pass);
// try zero width
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_BYTE, 0, 20, 3, 30,
new int[] {0, 1, 2});
}
catch (IllegalArgumentException e)
{
pass = true;
}
harness.check(pass);
// try zero height
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_BYTE, 10, 0, 3, 30,
new int[] {0, 1, 2});
}
catch (IllegalArgumentException e)
{
pass = true;
}
harness.check(pass);
// try negative pixel stride
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_BYTE, 10, 20, -1, 30,
new int[] {0, 1, 2});
}
catch (IllegalArgumentException e)
{
pass = true;
}
harness.check(pass);
// try negative scanline stride
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_BYTE, 10, 20, 3, -1,
new int[] {0, 1, 2});
}
catch (IllegalArgumentException e)
{
pass = true;
}
harness.check(pass);
// try width * height > Integer.MAX_VALUE
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_BYTE, 3,
Integer.MAX_VALUE / 2, 3, 30, new int[] {0, 1, 2});
}
catch (IllegalArgumentException e)
{
pass = true;
}
harness.check(pass);
// try null band offsets
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_BYTE, 10, 20, 3, 30, null);
}
catch (NullPointerException e)
{
pass = true;
}
harness.check(pass);
}
public void testConstructor2(TestHarness harness)
{
harness.checkPoint("(int, int, int, int, int, int[], int[])");
int[] bankIndices = new int[] {0, 1};
int[] bandOffsets = new int[] {0, 0};
ComponentSampleModel m = new ComponentSampleModel(DataBuffer.TYPE_INT, 22,
11, 1, 25, bankIndices, new int[] {0, 0});
harness.check(m.getDataType(), DataBuffer.TYPE_INT);
harness.check(m.getWidth(), 22);
harness.check(m.getHeight(), 11);
harness.check(m.getPixelStride(), 1);
harness.check(m.getNumBands(), 2);
harness.check(m.getNumDataElements(), 2);
harness.check(Arrays.equals(m.getBankIndices(), new int[] {0, 1}));
harness.check(m.getBankIndices() != bankIndices); // not the same instance
harness.check(Arrays.equals(m.getBandOffsets(), bandOffsets));
harness.check(m.getBandOffsets() != bandOffsets); // not the same instance
// check unknown data type
boolean pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_UNDEFINED, 22,
11, 1, 25, new int[] {0, 1}, new int[] {0, 0});
}
catch (IllegalArgumentException e)
{
pass = true;
}
harness.check(pass);
// check w = 0
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_INT, 0,
11, 1, 25, new int[] {0, 1}, new int[] {0, 0});
}
catch (IllegalArgumentException e)
{
pass = true;
}
harness.check(pass);
// check h = 0
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_INT, 22,
0, 1, 25, new int[] {0, 1}, new int[] {0, 0});
}
catch (IllegalArgumentException e)
{
pass = true;
}
harness.check(pass);
// check w * h exceeds Integer.MAX_VALUE
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_INT, Integer.MAX_VALUE - 1,
2, 1, 25, new int[] {0, 1}, new int[] {0, 0});
}
catch (IllegalArgumentException e)
{
pass = true;
}
harness.check(pass);
// try pixelStride < 0
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_INT, 22,
11, -1, 25, new int[] {0, 1}, new int[] {0, 0});
}
catch (IllegalArgumentException e)
{
pass = true;
}
harness.check(pass);
// try scanlineStride = 0
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_INT, 22,
11, 1, -1, new int[] {0, 1}, new int[] {0, 0});
}
catch (IllegalArgumentException e)
{
pass = true;
}
harness.check(pass);
// try null bankIndices
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_INT, 22, 11, 1, 25, null,
new int[] {0, 0});
}
catch (NullPointerException e)
{
pass = true;
}
harness.check(pass);
// try empty bankIndices
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_INT, 22, 11, 1, 25,
new int[0], new int[] {0, 0});
}
catch (ArrayIndexOutOfBoundsException e)
{
pass = true;
}
catch (IllegalArgumentException e)
{
pass = true;
}
harness.check(pass);
// try null bandOffsets
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_INT, 22, 11, 1, 25,
new int[] {0, 0}, null);
}
catch (NullPointerException e)
{
pass = true;
}
harness.check(pass);
// try arrays of different lengths
pass = false;
try
{
m = new ComponentSampleModel(DataBuffer.TYPE_INT, 22, 11, 1, 25,
new int[1], new int[2]);
}
catch (IllegalArgumentException e)
{
pass = true;
}
harness.check(pass);
}
public void testDefensiveCopies(TestHarness harness)
{
harness.checkPoint("testDefensiveCopies()");
int[] bandOffsets = new int[] {0, 1, 2};
MyComponentSampleModel m = new MyComponentSampleModel(DataBuffer.TYPE_BYTE,
10, 20, 3, 30, bandOffsets);
harness.check(bandOffsets != m.getBandOffsetsDirect());
harness.check(Arrays.equals(bandOffsets, m.getBandOffsetsDirect()));
int[] bankIndices = new int[] {0, 0, 0};
MyComponentSampleModel m2 = new MyComponentSampleModel(DataBuffer.TYPE_BYTE,
10, 20, 3, 30, bandOffsets, bankIndices);
harness.check(bandOffsets != m2.getBandOffsetsDirect());
harness.check(Arrays.equals(bandOffsets, m2.getBandOffsetsDirect()));
harness.check(bankIndices != m2.getBankIndicesDirect());
harness.check(Arrays.equals(bankIndices, m2.getBankIndicesDirect()));
}
}