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Brian Donovan
7be6352531
This is primarily useful in cases when the format string can vary, but the argument order will not, as is often the case with format strings in Localized.strings files. From http://perldoc.perl.org/functions/sprintf.html: An explicit format parameter index, such as 2$. By default sprintf will format the next unused argument in the list, but this allows you to take the arguments out of order. See also this Cocoa example: http://stackoverflow.com/questions/1063843/is-there-a-way-to-specify-argument-position-index-in-nsstring-stringwithformat
38 lines
832 B
Plaintext
38 lines
832 B
Plaintext
var sprintf = ObjectiveJ.sprintf;
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@implementation sprintfTest : OJTestCase
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// TODO: add many many more of these...
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- (void)testObjectWithPrefixAndSuffix
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{
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[self assert:@"[hello world]" equals:sprintf(@"[%@]", @"hello world")];
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}
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- (void)testDecimalWithPrefixAndSuffix
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{
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[self assert:@"[123]" equals:sprintf(@"[%d]", 123)];
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}
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- (void)testFloatWithPrefixAndSuffix
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{
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[self assert:@"[123.1234]" equals:sprintf(@"[%f]", 123.1234)];
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}
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- (void)testZeroPaddingWithWidthAndPercentEscaping
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{
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[self assert:@"099%" equals:sprintf(@"%03d%%", 99)];
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}
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- (void)testOutOfOrderExplicitFormatParameterIndexes
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{
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[self assert:@"2 > 1" equals:sprintf(@"%2$d > %1$d", 1, 2)];
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}
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- (void)testMixingImplicitAndExplicitFormatParameterIndexes
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{
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[self assert:@"a < b && b > a" equals:sprintf(@"%@ < %2$@ && %@ > %1$@", @"a", @"b")];
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}
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@end
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