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diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/QuotedStringGitPathStyleTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/QuotedStringGitPathStyleTest.java
new file mode 100644
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+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/QuotedStringGitPathStyleTest.java
@@ -0,0 +1,187 @@
+/*
+ * Copyright (C) 2008, Google Inc.
+ * and other copyright owners as documented in the project's IP log.
+ *
+ * This program and the accompanying materials are made available
+ * under the terms of the Eclipse Distribution License v1.0 which
+ * accompanies this distribution, is reproduced below, and is
+ * available at http://www.eclipse.org/org/documents/edl-v10.php
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ *
+ * - Neither the name of the Eclipse Foundation, Inc. nor the
+ *   names of its contributors may be used to endorse or promote
+ *   products derived from this software without specific prior
+ *   written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.eclipse.jgit.util;
+
+import static org.eclipse.jgit.util.QuotedString.GIT_PATH;
+
+import java.io.UnsupportedEncodingException;
+
+import junit.framework.TestCase;
+
+import org.eclipse.jgit.lib.Constants;
+
+public class QuotedStringGitPathStyleTest extends TestCase {
+	private static void assertQuote(final String exp, final String in) {
+		final String r = GIT_PATH.quote(in);
+		assertNotSame(in, r);
+		assertFalse(in.equals(r));
+		assertEquals('"' + exp + '"', r);
+	}
+
+	private static void assertDequote(final String exp, final String in) {
+		final byte[] b;
+		try {
+			b = ('"' + in + '"').getBytes("ISO-8859-1");
+		} catch (UnsupportedEncodingException e) {
+			throw new RuntimeException(e);
+		}
+		final String r = GIT_PATH.dequote(b, 0, b.length);
+		assertEquals(exp, r);
+	}
+
+	public void testQuote_Empty() {
+		assertEquals("\"\"", GIT_PATH.quote(""));
+	}
+
+	public void testDequote_Empty1() {
+		assertEquals("", GIT_PATH.dequote(new byte[0], 0, 0));
+	}
+
+	public void testDequote_Empty2() {
+		assertEquals("", GIT_PATH.dequote(new byte[] { '"', '"' }, 0, 2));
+	}
+
+	public void testDequote_SoleDq() {
+		assertEquals("\"", GIT_PATH.dequote(new byte[] { '"' }, 0, 1));
+	}
+
+	public void testQuote_BareA() {
+		final String in = "a";
+		assertSame(in, GIT_PATH.quote(in));
+	}
+
+	public void testDequote_BareA() {
+		final String in = "a";
+		final byte[] b = Constants.encode(in);
+		assertEquals(in, GIT_PATH.dequote(b, 0, b.length));
+	}
+
+	public void testDequote_BareABCZ_OnlyBC() {
+		final String in = "abcz";
+		final byte[] b = Constants.encode(in);
+		final int p = in.indexOf('b');
+		assertEquals("bc", GIT_PATH.dequote(b, p, p + 2));
+	}
+
+	public void testDequote_LoneBackslash() {
+		assertDequote("\\", "\\");
+	}
+
+	public void testQuote_NamedEscapes() {
+		assertQuote("\\a", "\u0007");
+		assertQuote("\\b", "\b");
+		assertQuote("\\f", "\f");
+		assertQuote("\\n", "\n");
+		assertQuote("\\r", "\r");
+		assertQuote("\\t", "\t");
+		assertQuote("\\v", "\u000B");
+		assertQuote("\\\\", "\\");
+		assertQuote("\\\"", "\"");
+	}
+
+	public void testDequote_NamedEscapes() {
+		assertDequote("\u0007", "\\a");
+		assertDequote("\b", "\\b");
+		assertDequote("\f", "\\f");
+		assertDequote("\n", "\\n");
+		assertDequote("\r", "\\r");
+		assertDequote("\t", "\\t");
+		assertDequote("\u000B", "\\v");
+		assertDequote("\\", "\\\\");
+		assertDequote("\"", "\\\"");
+	}
+
+	public void testDequote_OctalAll() {
+		for (int i = 0; i < 127; i++) {
+			assertDequote("" + (char) i, octalEscape(i));
+		}
+		for (int i = 128; i < 256; i++) {
+			int f = 0xC0 | (i >> 6);
+			int s = 0x80 | (i & 0x3f);
+			assertDequote("" + (char) i, octalEscape(f)+octalEscape(s));
+		}
+	}
+
+	private String octalEscape(int i) {
+		String s = Integer.toOctalString(i);
+		while (s.length() < 3) {
+			s = "0" + s;
+		}
+		return "\\"+s;
+	}
+
+	public void testQuote_OctalAll() {
+		assertQuote("\\001", "\1");
+		assertQuote("\\176", "~");
+		assertQuote("\\303\\277", "\u00ff"); // \u00ff in UTF-8
+	}
+
+	public void testDequote_UnknownEscapeQ() {
+		assertDequote("\\q", "\\q");
+	}
+
+	public void testDequote_FooTabBar() {
+		assertDequote("foo\tbar", "foo\\tbar");
+	}
+
+	public void testDequote_Latin1() {
+		assertDequote("\u00c5ngstr\u00f6m", "\\305ngstr\\366m"); // Latin1
+	}
+
+	public void testDequote_UTF8() {
+		assertDequote("\u00c5ngstr\u00f6m", "\\303\\205ngstr\\303\\266m");
+	}
+
+	public void testDequote_RawUTF8() {
+		assertDequote("\u00c5ngstr\u00f6m", "\303\205ngstr\303\266m");
+	}
+
+	public void testDequote_RawLatin1() {
+		assertDequote("\u00c5ngstr\u00f6m", "\305ngstr\366m");
+	}
+
+	public void testQuote_Ang() {
+		assertQuote("\\303\\205ngstr\\303\\266m", "\u00c5ngstr\u00f6m");
+	}
+}