Expand previous unit test

sequelpro · Jan 27, 2015 · aa15d31 · aa15d31
1 parent c9c96af
commit aa15d31
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/UnitTests/SPParserUtilsTest.m b/UnitTests/SPParserUtilsTest.m
@@ -48,6 +48,13 @@ - (void)testUtf8strlen {
 	NSString *emptyString = [NSString stringWithCString:empty encoding:NSUTF8StringEncoding];
 	STAssertEquals(utf8strlen(empty),[emptyString length], @"empty string");
 
+	// This is just a little safeguard.
+	// If any of those conditions fail, all of the following assumptions are moot.
+	const char *charSeq = "\xF0\x9F\x8D\x8F"; //🍏
+	NSString *charString = [NSString stringWithCString:charSeq encoding:NSUTF8StringEncoding];
+	STAssertEquals(strlen(charSeq),     4, @"assumption about storage for binary C string");
+	STAssertEquals([charString length], 2, @"assumption about NSString internal storage of string");
+
 	const char *singleByteSeq = "Hello World!";
 	NSString *singleByteString = [NSString stringWithCString:singleByteSeq encoding:NSUTF8StringEncoding];
 	STAssertEquals(utf8strlen(singleByteSeq), [singleByteString length], @"ASCII UTF-8 subset");
@@ -67,6 +74,11 @@ - (void)testUtf8strlen {
 	const char *mixedSeq = "\xE3\x81\x82\xE3\x82\x81\xE3\x80\x90\xE9\xA3\xB4\xE3\x80\x91\xF0\x9F\x8D\xAD \xE2\x89\x88 S\xC3\xBC\xC3\x9Figkeit"; // あめ【飴】🍭 ≈ Süßigkeit
 	NSString *mixedString = [NSString stringWithCString:mixedSeq encoding:NSUTF8StringEncoding];
 	STAssertEquals(utf8strlen(mixedSeq), [mixedString length], @"utf8 characters with all 4 lengths mixed together.");
+
+	//composed vs. decomposed chars
+	const char *decompSeq = "\xC3\xA4 - a\xCC\x88"; // ä - ä
+	NSString *decompString = [NSString stringWithCString:decompSeq encoding:NSUTF8StringEncoding];
+	STAssertEquals(utf8strlen(decompSeq), [decompString length], @"\"LATIN SMALL LETTER A WITH DIAERESIS\" vs. \"LATIN SMALL LETTER A\" + \"COMBINING DIAERESIS\"");
 }
 
 @end