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December 15, 2015 22:28
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describe('ProgressionValidator', function () { | |
it ('Deve retornar um array ["pa"] quando tratar-se de uma progressao aritmetica', function () { | |
expect(ProgressionValidator([1, 3, 5])).toEqual(['pa']); | |
expect(ProgressionValidator([10, 8, 6])).toEqual(['pa']); | |
expect(ProgressionValidator([-3, -7, -11])).toEqual(['pa']); | |
}); | |
it ('Deve retornar um array ["pg"] quando tratar-se de uma progressao geometrica', function () { | |
expect(ProgressionValidator([1, 3, 9])).toEqual(['pg']); | |
expect(ProgressionValidator([20, 10, 5])).toEqual(['pg']); | |
expect(ProgressionValidator([-3, -6, -12])).toEqual(['pg']); | |
}); | |
it ('Deve retornar um array ["pa", "pg"] quando a sequência pode ser ambas', function () { | |
expect(ProgressionValidator([1, 1, 1])).toEqual(['pa', 'pg']); | |
expect(ProgressionValidator([10, 10, 10])).toEqual(['pa', 'pg']); | |
expect(ProgressionValidator([-3, -3, -3])).toEqual(['pa', 'pg']); | |
}); | |
it ('Deve retornar um array vazio [] quando nao for nenhuma das progressoes abordadas', function () { | |
expect(ProgressionValidator([1, 3, 7])).toEqual([]); | |
expect(ProgressionValidator([4, 8, 9])).toEqual([]); | |
expect(ProgressionValidator([22, 11, 10])).toEqual([]); | |
}); | |
}) |
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