Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.databoard / testcases / org / simantics / databoard / tests / StringTest.java

diff --git a/bundles/org.simantics.databoard/testcases/org/simantics/databoard/tests/StringTest.java b/bundles/org.simantics.databoard/testcases/org/simantics/databoard/tests/StringTest.java
new file mode 100644 (file)
index 0000000..f34e239
--- /dev/null
+++ b/bundles/org.simantics.databoard/testcases/org/simantics/databoard/tests/StringTest.java
@@ -0,0 +1,101 @@
+/*******************************************************************************\r
+ *  Copyright (c) 2010 Association for Decentralized Information Management in\r
+ *  Industry THTH ry.\r
+ *  All rights reserved. This program and the accompanying materials\r
+ *  are made available under the terms of the Eclipse Public License v1.0\r
+ *  which accompanies this distribution, and is available at\r
+ *  http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ *  Contributors:\r
+ *      VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.databoard.tests;
+
+import java.nio.charset.Charset;\r
+import java.util.Random;\r
+
+public class StringTest {
+       
+       static final Charset UTF8 = Charset.forName("utf-8");
+       static final Random r = new Random(); 
+       
+       static public String getRandomString()
+       {
+               int len = r.nextInt(600);
+               StringBuilder sb = new StringBuilder(len);
+               for (int i=0; i<len; i++)
+               {
+                       char c = (char) r.nextInt();
+                       sb.append(c);
+               }               
+               return sb.toString();
+       }
+
+       static public String getStringWithC(char c )
+       {
+               int len = 3;
+               StringBuilder sb = new StringBuilder(len);
+               for (int i=0; i<len; i++)
+               {
+                       sb.append(c);
+               }               
+               return sb.toString();
+       }
+       
+       
+       public static int getStringUTF8EncodedByteLength1(String string)
+       {
+               return string.getBytes(UTF8).length;            
+       }
+
+       public static int getStringUTF8EncodedByteLength2(String string)
+       {
+               int result = 0;
+               int length = string.length();
+               for (int i=0; i<length; i++)
+               {
+                       char c = string.charAt(i);
+                       if (c>=0 && c<=0x7f) {
+                               result += 1;
+                       } else if (c>=0x80 && c<=0x07ff) {
+                               result += 2;
+                       } else if (c>=0xD800 && c<=0xDFFF) {
+                               result += 1;
+                       } else if (c>=0x800 && c<=0xffff) {
+                               result += 3;
+                       } else if (c>=0x10000 && c<=0x10ffff) {
+                               result += 4;
+                       } else if (c>=0x110000 && c<=0x1FFFFF) {
+                               result += 4;
+                       } else {
+                               // NOT IN RFC 3629
+                               // Lets guess 5 bytes anyhow
+                               result += 4;
+                       }
+               }
+               return result;          
+       }
+       
+       
+       public static void main(String[] args) {
+               char c = (char) 0x66778899;
+               int j = (int) c;
+               System.out.println(j );
+               
+               for (int i=1000000; i<0x7fffffff; i++)
+               {
+                       String str = getStringWithC((char)i);
+                       int len1 = getStringUTF8EncodedByteLength1(str);
+                       int len2 = getStringUTF8EncodedByteLength2(str);
+                       if (len1!=len2) {
+                               System.out.printf("i=%d, Correct=%d, My=%d, Chars=%d, %s\n", i, len1, len2, str.length(), str);
+                               throw new RuntimeException("length mismatch");
+                       }
+                       if ((i & 0xFFFF) == 0) 
+                               System.out.printf("i=%d, Correct=%d, My=%d, Chars=%d, %s\n", i, len1, len2, str.length(), str);
+                               
+               }
+       }
+       
+}
+