X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.databoard%2Ftestcases%2Forg%2Fsimantics%2Fdataboard%2Ftests%2FStringTest.java;fp=bundles%2Forg.simantics.databoard%2Ftestcases%2Forg%2Fsimantics%2Fdataboard%2Ftests%2FStringTest.java;h=f34e239b5bf0cc68f3607ea8e78a997532b8e973;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

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
index 000000000..f34e239b5
--- /dev/null
+++ b/bundles/org.simantics.databoard/testcases/org/simantics/databoard/tests/StringTest.java
@@ -0,0 +1,101 @@
+/*******************************************************************************
+ *  Copyright (c) 2010 Association for Decentralized Information Management in
+ *  Industry THTH ry.
+ *  All rights reserved. This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License v1.0
+ *  which accompanies this distribution, and is available at
+ *  http://www.eclipse.org/legal/epl-v10.html
+ *
+ *  Contributors:
+ *      VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.databoard.tests;
+
+import java.nio.charset.Charset;
+import java.util.Random;
+
+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);
+				
+		}
+	}
+	
+}
+