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Contents
#import <XCTest/XCTest.h>
#if __has_include("CollatzConjectureExample.h")
# import "CollatzConjectureExample.h"
# else
# import "CollatzConjecture.h"
#endif
@interface CollatzConjectureTest : XCTestCase
@end
@implementation CollatzConjectureTest
- (void)testZeroStepsForOne {
XCTAssertEqual(0, [CollatzConjecture stepsForNumber:1]);
}
- (void)testDivideIfEven {
XCTAssertEqual(4, [CollatzConjecture stepsForNumber:16]);
}
- (void)testEvenAndOddSteps {
XCTAssertEqual(9, [CollatzConjecture stepsForNumber:12]);
}
- (void)testLargeNumberOfEvenAndOddSteps {
XCTAssertEqual(152, [CollatzConjecture stepsForNumber:1000000]);
}
- (void)testZeroIsAnError {
XCTAssertEqual([CollatzConjecture stepsForNumber:0], NSNotFound);
}
- (void)testNegativeValueIsAnError {
XCTAssertEqual([CollatzConjecture stepsForNumber:-15], NSNotFound);
}
@end
Version data entries
78 entries across 78 versions & 1 rubygems