Patch: FYI: numeric shaper test

[Tom Tromey <tromey at redhat dot com>]

I'm checking this in.

Tom

2006-03-19  Tom Tromey  <tromey@redhat.com>

	* gnu/testlet/java/awt/font/NumericShaper/Basic.java: New file.

Index: gnu/testlet/java/awt/font/NumericShaper/Basic.java
===================================================================
RCS file: gnu/testlet/java/awt/font/NumericShaper/Basic.java
diff -N gnu/testlet/java/awt/font/NumericShaper/Basic.java
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ gnu/testlet/java/awt/font/NumericShaper/Basic.java	1 Jan 1970 00:00:00 -0000
@@ -0,0 +1,110 @@
+/* Basic.java -- Test numeric shaper functionality
+   Copyright (C) 2006 Red Hat, Inc.
+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
+
+package gnu.testlet.java.awt.font.NumericShaper;
+
+import java.awt.font.NumericShaper;
+
+import gnu.testlet.TestHarness;
+import gnu.testlet.Testlet;
+
+public class Basic implements Testlet
+{
+	public String xform(String input)
+	{
+		StringBuffer result = new StringBuffer();
+		for (int i = 0; i < input.length(); ++i)
+		{
+			char c = input.charAt(i);
+			if (c < ' ' || c > 0x7f)
+				result.append("\\u").append(Integer.toHexString(c));
+			else
+				result.append(c);
+		}
+		return result.toString();
+	}
+
+	public void testOne(TestHarness harness, String input,
+			NumericShaper shaper, String expected,
+			int context)
+	{
+		char[] chars = input.toCharArray();
+		if (context == -1)
+			shaper.shape(chars, 0, chars.length);
+		else
+			shaper.shape(chars, 0, chars.length, context);
+		// Transforming here makes the output legible in case of failure.
+		harness.check(xform(new String(chars)), xform(expected));
+	}
+
+	public void test(TestHarness harness)
+	{
+		harness.checkPoint("non-contextual");
+		NumericShaper nonc = NumericShaper.getShaper(NumericShaper.TIBETAN);
+		harness.check(! nonc.isContextual());
+		testOne(harness, "abc 0123", nonc,
+				"abc \u0f20\u0f21\u0f22\u0f23", -1);
+		testOne(harness, "abc 0123", nonc,
+				"abc \u0f20\u0f21\u0f22\u0f23", NumericShaper.BENGALI);
+		
+		// Note that the JDK fails some of these, as ethiopic does not
+		// have a digit zero.
+		nonc = NumericShaper.getShaper(NumericShaper.ETHIOPIC);
+		testOne(harness, "abc 0123", nonc,
+				"abc 0\u1369\u136a\u136b", -1);
+		testOne(harness, "abc 0123", nonc,
+				"abc 0\u1369\u136a\u136b", NumericShaper.EASTERN_ARABIC);
+		
+		harness.checkPoint("contextual");
+		NumericShaper contextualI
+		  = NumericShaper.getContextualShaper(NumericShaper.KHMER
+				  							  | NumericShaper.ETHIOPIC);
+		NumericShaper contextualE
+		  = NumericShaper.getContextualShaper(NumericShaper.KHMER
+				  							  | NumericShaper.ETHIOPIC,
+				  							  NumericShaper.EUROPEAN);
+		harness.check(contextualE.equals(contextualI));
+		harness.check(contextualE.isContextual());
+
+		// Use built-in context.
+		testOne(harness, "45", contextualE, "45", -1);
+		// Explicit context.
+		testOne(harness, "45", contextualE, "\u17e4\u17e5", NumericShaper.KHMER);
+		// Explicit but unrecognized context.
+		testOne(harness, "45", contextualE, "45", NumericShaper.ARABIC);
+		// The other explicit context.
+		testOne(harness, "45", contextualE, "\u136c\u136d", NumericShaper.ETHIOPIC);
+		// Context from the text.  The first \\u is ethiopic, the second khmer.
+		testOne(harness, "45 \u134d 045 \u1782 045", contextualI,
+				"45 \u134d 0\u136c\u136d \u1782 \u17e0\u17e4\u17e5", -1);
+
+		harness.checkPoint("arabic");
+		NumericShaper arabic
+		  = NumericShaper.getContextualShaper(NumericShaper.ARABIC
+				  | NumericShaper.EASTERN_ARABIC);
+		// According to testing, eastern arabic takes precedence here.
+		testOne(harness, "\u062b 1", arabic, "\u062b \u06f1", -1);
+		// This should choose eastern arabic.
+		testOne(harness, "1", arabic, "\u06f1", NumericShaper.EASTERN_ARABIC);
+	}
+}