public void If_sample_rate_is_1_then_always_true() { RandomGenerator randomGenerator = new RandomGenerator(); for (int i = 0; i < NumberOfTestsRan; i++) { Assert.True(randomGenerator.ShouldSend(1)); } }
public void If_sample_rate_is_0_5_then_have_half_true() { int numberOfTrues = 0; RandomGenerator randomGenerator = new RandomGenerator(); for (int i = 0; i < NumberOfTestsRan; i++) { if (randomGenerator.ShouldSend(0.5)) { numberOfTrues++; } } Assert.That( Math.Round(numberOfTrues/(double)NumberOfTestsRan,1),Is.EqualTo(0.5)); }
public void If_sample_rate_is_one_tenth_of_pct_then_have_one_tenth_of_pct() { int numberOfTrues = 0; RandomGenerator randomGenerator = new RandomGenerator(); const int sampleRate = 1/1000; for (int i = 0; i < NumberOfTestsRan; i++) { if (randomGenerator.ShouldSend(sampleRate)) { numberOfTrues++; } } Assert.That(Math.Round(numberOfTrues / (double)NumberOfTestsRan, 1), Is.EqualTo(sampleRate)); }
public void If_sample_rate_is_one_quarter_then_have_one_quarter_true() { var numberOfTrues = 0; var randomGenerator = new RandomGenerator(); const int sampleRate = 1/4; for (var i = 0; i < NumberOfTestsToRun; i++) { if (randomGenerator.ShouldSend(sampleRate)) { numberOfTrues++; } } Assert.That(Math.Round(numberOfTrues / (double)NumberOfTestsToRun, 1), Is.EqualTo(sampleRate)); }