Index: tests/OFIRITests.m
==================================================================
--- tests/OFIRITests.m
+++ tests/OFIRITests.m
@@ -336,10 +336,29 @@
 - (void)testIRIWithStringFailsWithInvalidFormat
 {
 	OTAssertThrowsSpecific([OFIRI IRIWithString: @"http"],
 	    OFInvalidFormatException);
 }
+
+- (void)testIRIByAppendingPathComponent
+{
+	OTAssertEqualObjects(
+	    [[[OFIRI IRIWithString: @"http://host/path/component"]
+	    IRIByAppendingPathComponent: @"foo/bar"] path],
+	    @"/path/component/foo/bar");
+
+	OTAssertEqualObjects(
+	    [[[OFIRI IRIWithString: @"http://host/path/component/"]
+	    IRIByAppendingPathComponent: @"foo/bar"] path],
+	    @"/path/component/foo/bar");
+
+	OTAssertEqualObjects(
+	    [[[OFIRI IRIWithString: @"http://host/path/component/"]
+	    IRIByAppendingPathComponent: @"foo/bar"
+			    isDirectory: true] path],
+	    @"/path/component/foo/bar/");
+}
 
 - (void)testIRIByAddingPercentEncodingForUnicodeCharacters
 {
 	OTAssertEqualObjects(
 	    _IRI[10].IRIByAddingPercentEncodingForUnicodeCharacters,