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// Наименьшее и наибольшее | |
// В этом маленьком задании вам предоставляется строка разделенных пробелами чисел и приходится возвращать самое большой и самое маленькое число в виде строки. | |
// Пример | |
// highAndLow("1 2 3 4 5"); // return "5 1" | |
// highAndLow("1 2 -3 4 5"); // return "5 -3" | |
// highAndLow("1 9 3 4 -5"); // return "9 -5" | |
import 'dart:math'; | |
String highAndLow(String input) { | |
int minValue = 42; | |
int maxValue = 43; | |
return '$maxValue $minValue'; | |
} | |
bool hasErrors = false; | |
List<String> messages = []; | |
void main() { | |
test('should work with single value', () { | |
expect(highAndLow('0'), equals('0 0')); | |
}); | |
test('should work with two equal values', () { | |
expect(highAndLow('42 42'), equals('42 42')); | |
}); | |
test('should work with different values', () { | |
expect(highAndLow('1 2 3 4 5'), equals('5 1')); | |
}); | |
test('should work with negative values', () { | |
expect(highAndLow('1 2 -3 4 5'), equals('5 -3')); | |
expect(highAndLow('1 9 3 4 -5'), equals('9 -5')); | |
}); | |
test('should work when all values negative', () { | |
expect(highAndLow('-1 -2 -3 -4 -5'), equals('-1 -5')); | |
}); | |
if(!hasErrors ){ | |
print('💪Tests are passed! \n\n'); | |
} else { | |
print('💩 Tests aren\'t passed! \n\n'); | |
} | |
print(messages.join('\n')); | |
} | |
typedef bool Checker(dynamic input); | |
Checker equals(dynamic input) { | |
return (dynamic internalInput) { | |
input.toString() == internalInput.toString() | |
? true | |
: throw AssertionError('value: $input is not equal: $internalInput'); | |
}; | |
} | |
void test(String name, Function input) { | |
try { | |
input(); | |
messages.add('✓ $name'); | |
} catch (e) { | |
hasErrors = true; | |
if (e is AssertionError) { | |
messages.add('✗ $test failed \n name: $name\n exception: ${e.message}'); | |
} | |
} | |
} | |
void expect(dynamic input, bool validator(dynamic validatorInput)) { | |
validator(input); | |
} |
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