FYI: Scrollbar tests

[Tania Bento <tbento at redhat dot com>]

Hey,

I have written three new tests (committed) for Scrollbar that test the
setValues(int,int,int,int), setBlockIncrement(int) and the
setUnitIncrement(int) methods.  One of the tests in setValues passes on
the reference implementation but failes on Classpath.

Cheers,
Tania

2006-10-20  Tania Bento  <tbento@redhat.com>

        * gnu/testlet/java/awt/Scrollbar/testSetBlockIncrement: New
test.
        * gnu/testlet/java/awt/Scrollbar/testSetValues.java: New test.
        * gnu/testlet/java/awt/Scrollbar/testSetUnitIncrement: New test

Index: gnu/testlet/java/awt/Scrollbar/testSetBlockIncrement.java
===================================================================
RCS file: gnu/testlet/java/awt/Scrollbar/testSetBlockIncrement.java
diff -N gnu/testlet/java/awt/Scrollbar/testSetBlockIncrement.java
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ gnu/testlet/java/awt/Scrollbar/testSetBlockIncrement.java	20 Oct 2006 17:06:50 -0000
@@ -0,0 +1,65 @@
+/* testSetBlockIncrement.java
+   Copyright (C) 2006 Red Hat
+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: 1.4
+
+package gnu.testlet.java.awt.Scrollbar;
+
+import java.awt.Scrollbar;
+
+import gnu.testlet.TestHarness;
+import gnu.testlet.Testlet;
+
+public class testSetBlockIncrement implements Testlet
+{
+
+  public void test(TestHarness harness)
+  {
+    Scrollbar bar = new Scrollbar();
+    
+    // This check shows that the default value of pageIncrement is 10.
+    harness.check(bar.getBlockIncrement(), 10);
+    
+    // These checks show that it is not possible to set pageIncrement
+    // to 0.  Instead, it is set to 1.
+    bar.setBlockIncrement(0);
+    harness.check(bar.getBlockIncrement(), 1);
+    bar.setBlockIncrement(5);
+    harness.check(bar.getBlockIncrement(), 5);
+    bar.setBlockIncrement(0);
+    harness.check(bar.getBlockIncrement(), 1);
+    
+    // These checks show that there was unnecessary code in the method.
+    // The unnecessary code would produce a value of 9 as the pageIncrement,
+    // when in fact it should be set to 30.
+    // NOTE: It is no longer necessary to check if 
+    // (maximum - minimum) == 0 because maximum will never equal minimum. 
+    bar.setMaximum(10);
+    bar.setMinimum(1);
+    harness.check(bar.getMaximum(), 10);
+    harness.check(bar.getMinimum(), 1);
+    harness.check(bar.getBlockIncrement(), 1);
+    bar.setBlockIncrement(30);
+    harness.check(bar.getBlockIncrement(), 30);
+    harness.check(bar.getBlockIncrement() != 9);        
+  }
+
+}
Index: gnu/testlet/java/awt/Scrollbar/testSetUnitIncrement.java
===================================================================
RCS file: gnu/testlet/java/awt/Scrollbar/testSetUnitIncrement.java
diff -N gnu/testlet/java/awt/Scrollbar/testSetUnitIncrement.java
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ gnu/testlet/java/awt/Scrollbar/testSetUnitIncrement.java	20 Oct 2006 17:06:50 -0000
@@ -0,0 +1,65 @@
+/* testSetUnitIncrement.java 
+   Copyright (C) 2006 Red Hat
+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: 1.4
+
+package gnu.testlet.java.awt.Scrollbar;
+
+import gnu.testlet.TestHarness;
+import gnu.testlet.Testlet;
+
+import java.awt.Scrollbar;
+
+public class testSetUnitIncrement implements Testlet
+{
+
+  public void test(TestHarness harness)
+  {
+    Scrollbar bar = new Scrollbar();
+    
+    // This check shows that the default value of lineIncrement is 1.
+    harness.check(bar.getUnitIncrement(), 1);
+    
+    // These checks show that it is not possible to set lineIncrement
+    // to 0.  Instead, it is set to 1.
+    bar.setUnitIncrement(0);
+    harness.check(bar.getUnitIncrement(), 1);
+    bar.setUnitIncrement(5);
+    harness.check(bar.getUnitIncrement(), 5);
+    bar.setUnitIncrement(0);
+    harness.check(bar.getUnitIncrement(), 1);
+    
+    // These checks show that there was unnecessary code in the method.
+    // The unnecessary code would produce a value of 9 as the lineIncrement,
+    // when in fact it should be set to 30.
+    // NOTE: It is no longer necessary to check if 
+    // (maximum - minimum) == 0 because maximum will never equal minimum. 
+    bar.setMaximum(10);
+    bar.setMinimum(1);
+    harness.check(bar.getMaximum(), 10);
+    harness.check(bar.getMinimum(), 1);
+    harness.check(bar.getUnitIncrement(), 1);
+    bar.setUnitIncrement(30);
+    harness.check(bar.getUnitIncrement(), 30);
+    harness.check(bar.getUnitIncrement() != 9);    
+  }
+  
+}
Index: gnu/testlet/java/awt/Scrollbar/testSetValues.java
===================================================================
RCS file: gnu/testlet/java/awt/Scrollbar/testSetValues.java
diff -N gnu/testlet/java/awt/Scrollbar/testSetValues.java
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ gnu/testlet/java/awt/Scrollbar/testSetValues.java	20 Oct 2006 17:06:50 -0000
@@ -0,0 +1,161 @@
+/* testSetValues.java 
+   Copyright (C) 2006 Red Hat
+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: 1.4
+
+package gnu.testlet.java.awt.Scrollbar;
+
+import java.awt.Scrollbar;
+
+import gnu.testlet.TestHarness;
+import gnu.testlet.Testlet;
+
+public class testSetValues implements Testlet
+{
+
+  public void test(TestHarness harness)
+  {
+    test1(harness);
+    test2(harness);
+    test3(harness);
+    test4(harness);
+    test5(harness);
+    test6(harness);
+    test7(harness);
+    test8(harness);
+    test9(harness);
+  }
+
+  public void test1(TestHarness harness)
+  {
+    // This test ensures that if value < minimum, then
+    // value is set to minimum.
+    Scrollbar bar = new Scrollbar();
+    bar.setValues(0, 1, 1, 2);
+    harness.check(bar.getValue(), 1);
+    harness.check(bar.getVisibleAmount(), 1);
+    harness.check(bar.getMinimum(), 1);
+    harness.check(bar.getMaximum(), 2);
+  }
+  
+  public void test2(TestHarness harness)
+  {
+    // This test ensures that if visibleAmount < 0, then
+    // it is set to 1.
+    Scrollbar bar = new Scrollbar();
+    bar.setValues(4, -5, 4, 8);
+    harness.check(bar.getValue(), 4);
+    harness.check(bar.getVisibleAmount(), 1);
+    harness.check(bar.getMinimum(), 4);
+    harness.check(bar.getMaximum(), 8);
+  }
+  
+  public void test3(TestHarness harness)
+  {
+    // This test ensures that if visibleAmount = 0, then
+    // it is set to 1.
+    Scrollbar bar = new Scrollbar();
+    bar.setValues(0, 0, 5, 10);
+    harness.check(bar.getValue(), 5);
+    harness.check(bar.getVisibleAmount(), 1);
+    harness.check(bar.getMinimum(), 5);
+    harness.check(bar.getMaximum(), 10);
+  }
+  public void test4(TestHarness harness)
+  {
+    // This test ensures that if maximum < minimum, then
+    // maximum is set to minimum + 1.
+    Scrollbar bar = new Scrollbar();
+    bar.setValues(10, 1, 10, 5);
+    harness.check(bar.getValue(), 10);
+    harness.check(bar.getVisibleAmount(), 1);
+    harness.check(bar.getMinimum(), 10);
+    harness.check(bar.getMaximum(), 11);
+  }
+  
+  public void test5(TestHarness harness)
+  {
+    // This test ensures that if value > maximum - visibleAmount,
+    // then value is set to maximum - visibleAmount.
+    Scrollbar bar = new Scrollbar();
+    bar.setValues(10, 1, 5, 10);
+    harness.check(bar.getValue(), 9);
+    harness.check(bar.getVisibleAmount(), 1);
+    harness.check(bar.getMinimum(), 5);
+    harness.check(bar.getMaximum(), 10);
+  }
+  
+  public void test6(TestHarness harness)
+  {
+    // This test ensures that if visibleAmount > maximum - minimum,
+    // then visibleAmount is set to maximum - minimum.
+    Scrollbar bar = new Scrollbar();
+    bar.setValues(5, 30, 5, 20);
+    harness.check(bar.getValue(), 5);
+    harness.check(bar.getVisibleAmount(), 15);
+    harness.check(bar.getMinimum(), 5);
+    harness.check(bar.getMaximum(), 20);
+  }
+  
+  public void test7(TestHarness harness)
+  {
+    // This test ensures that if maximum = minimum, 
+    // then maximum is set to maximum + 1.
+    Scrollbar bar = new Scrollbar();
+    bar.setValues(5, 10, 20, 20);
+    harness.check(bar.getValue(), 20);
+    harness.check(bar.getVisibleAmount(), 1);
+    harness.check(bar.getMinimum(), 20);
+    harness.check(bar.getMaximum(), 21);
+  }
+  
+  public void test8(TestHarness harness)
+  {
+    // This test ensures that if negative values are passed
+    // as the value, minimum and maximum values, then
+    // there is no effect.  That is, they are not rejected or
+    // made positive.  
+    Scrollbar bar = new Scrollbar();
+    bar.setValues(-3, -2, -4, -8);
+    harness.check(bar.getValue(), -4);
+    harness.check(bar.getVisibleAmount(), 1);
+    harness.check(bar.getMinimum(), -4);
+    harness.check(bar.getMaximum(), -3);
+  }
+  
+  public void test9(TestHarness harness)
+  {
+    // This test is taken from Intel's test suite
+    // (test.java.awt.ScrollbarTest).  It passes on Sun
+    // but fails on Classpath.
+    Scrollbar bar = new Scrollbar();
+    bar.setValues(0, 10, -100, 100);
+    harness.check(bar.getValue(), 0);
+    harness.check(bar.getVisibleAmount(), 10);
+    harness.check(bar.getMinimum(), -100);
+    harness.check(bar.getMaximum(), 100);
+    bar.setMinimum(Integer.MIN_VALUE);
+    harness.check(bar.getValue(), -11);
+    harness.check(bar.getVisibleAmount(), 10);
+    harness.check(bar.getMinimum(), Integer.MIN_VALUE);
+    harness.check(bar.getMaximum(), -1);
+  }
+}