bakkdoor/fancy

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 FancySpec describe: Fixnum with: { it: "adds two numbers correctly" with: '+ when: { n1 = 20 n2 = 22 n1 + n2 is: 42 } it: "subtracts two numbers correctly" with: '- when: { n1 = 20 n2 = 22 n1 - n2 is: -2 } it: "multiplies two numbers correctly" with: '* when: { n1 = 20 n2 = 22 n1 * n2 is: 440 } it: "divides two numbers correctly" with: '/ when: { n1 = 20 n2 = 10 n1 / n2 is: 2 } it: "raises an exception when dividing by zero" when: { { 10 / 0 } is raise: ZeroDivisionError } it: "calculates the correct modulo value" with: 'modulo: when: { 9 % 4 is: 1 10 modulo: 2 . is: 0 } it: "does proper integer division" with: 'div: when: { 50 div: 10 . is: 5 55 div: 10 . is: 5 5 div: 10 . is: 0 ((55 div: 10) * 10) + (55 modulo: 10) is: 55 } it: "is the negation" with: 'negate when: { 42 negate is: -42 } it: "is odd" with: 'odd? when: { 1 odd? is: true 1 even? is: false } it: "is even" with: 'even? when: { 2 odd? is: false 2 even? is: true } it: "calculates the given power of itself" with: '** when: { 2 ** 3 is: 8 2 ** 0 is: 1 2 ** 1 is: 2 0 upto: 10 do: |i| { i ** 0 is: 1 i ** 1 is: i i ** 2 is: (i squared) } } it: "is the same when using underscores within the literal" when: { 50000 is: 50_000 100_000 is: 100000 100_000 is: 100_000 100_000 is: 100000.0 100_000.0 is: 100000 100_999.999 is: 100999.999 } it: "evaluates octal literals correctly" when: { 0o00 is: 0 0o01 is: 1 0o07 is: 7 0o10 is: 8 0o70 is: 56 } it: "evaluates binary literals correctly" when: { 0b00 is: 0 0b01 is: 1 0b10 is: 2 0b11 is: 3 0b100 is: 4 } it: "evaluates hexadecimal literals correctly" when: { 0x00 is: 0 0x01 is: 1 0x0A is: 10 0xA0 is: 160 0xFF is: 255 } it: "calls a block a given amount of times" with: 'times: when: { times_called = 0 10 times: { times_called = times_called + 1 } times_called is: 10 sum = 0 10 times: |i| { sum = sum + i } sum is: ((0..9) sum) } it: "calls a block a given amount of times with an offset" with: 'times:offset: when: { times_called = 0 sum = 0 10 times: |i| { times_called = times_called + 1 sum = sum + i } offset: 10 times_called is: 10 sum is: ((10..19) sum) } it: "tries to run a code block self amount of times or fails" with: 'times_try: when: { { -2 times_try: { 2 / 0 } } does_not raise: Exception { -1 times_try: { 2 / 0 } } does_not raise: Exception { 0 times_try: { 2 / 0 } } does_not raise: Exception { 1 times_try: { 2 / 0 } } raises: ZeroDivisionError { 2 times_try: { 2 / 0 } } raises: ZeroDivisionError tries = 0 { 2 times_try: { tries = tries + 1 2 / 0 } } raises: ZeroDivisionError tries is: 2 2 times_try: { 2 } . is: 2 i = 0 2 times_try: { 2 / i } retry_with: { i = 1 } . is: 2 } }