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#!/usr/bin/env macruby

require File.expand_path('../../test_helper', __FILE__)

class TestString < Test::Unit::TestCase

def setup

framework 'Foundation'

bundle = '/tmp/_test_string.bundle'

if !File.exist?(bundle) or File.mtime(bundle) < File.mtime(__FILE__)

s = <<EOS

#import <Foundation/Foundation.h>

@interface MyTestClass : NSObject

@end

@implementation MyTestClass

- (NSString*)testSubstring:(NSString*)str range:(NSRange)range

{

unichar buf[1024];

[str getCharacters:buf range:range];

return [[NSString alloc] initWithCharacters:buf length:range.length];

}

@end

EOS

File.open('/tmp/_test_string.m', 'w') { |io| io.write(s) }

system("gcc /tmp/_test_string.m -bundle -o #{bundle} -framework Foundation -fobjc-gc-only") or exit 1

end

require 'dl'; DL.dlopen(bundle)

end

def test_characterAtIndex

s = 'abcあいうxyz'

[0,3,6,8].each do |d|

assert_equal(s[d].ord, s.characterAtIndex(d))

assert_equal(s[d].ord, s.characterAtIndex(d))

end

end

def test_getCharactersRange

s = 'abcあいうxzy'

obj = MyTestClass.alloc.init

[[0,1], [1,7], [4,3], [7,2]].each do |d|

assert_equal(s[*d], obj.testSubstring(s, range:NSRange.new(*d)))

end

end

#

# Tests for UTF-16 surrogate pairs

# These tests should be fixed in the future.

#

# Memo:

# If an NSString consists of a character which is UTF-16 surrogate pair,

# the length of the string will be 2 in Cocoa, while 1 in ruby 1.9.

#

def test_characterAtIndex_surrogate_pairs

s = "abc\xf0\xa3\xb4\x8exzy"

assert_equal(s[3].ord, s.characterAtIndex(3))

end

def test_getCharactersRange_surrogate_pairs

s = "abc\xf0\xa3\xb4\x8exzy"

obj = MyTestClass.alloc.init

assert_equal(s[2,3], obj.testSubstring(s, range:NSRange.new(2,3)))

end

end