public void GenerateRandomUniqueNumbers_ShouldThrowFrom()
{
Mock <IUsedNumbersProvider> usedNumbersMock = new Mock <IUsedNumbersProvider>();
RandomUniqueGenerator generator;
var exception = Assert.Throws <ArgumentOutOfRangeException>(() => generator = new RandomUniqueGenerator(4, 3));
Assert.Equal("from", exception.ParamName);
}
public void GenerateRandomUniqueNumbers_ShouldThrowCount()
{
Mock <IUsedNumbersProvider> usedNumbersMock = new Mock <IUsedNumbersProvider>();
RandomUniqueGenerator generator = new RandomUniqueGenerator(3, 5);
var exception = Assert.Throws <ArgumentOutOfRangeException>(() => generator.GenerateRandomUniqueNumbers(usedNumbersMock.Object, -1));
Assert.Equal("count", exception.ParamName);
}
public void GenerateRandomUniqueNumbersTest()
{
Mock <IUsedNumbersProvider> usedNumbersMock = new Mock <IUsedNumbersProvider>();
usedNumbersMock.Setup(x => x.GetUsedNumbers()).Returns(new HashSet <int> {
2, 3, 4, 5
});
HashSet <int> expected = new HashSet <int> {
6, 7, 8, 9
};
RandomUniqueGenerator generator = new RandomUniqueGenerator(2, 9);
HashSet <int> actual = generator.GenerateRandomUniqueNumbers(usedNumbersMock.Object, 4);
Assert.True(expected.OrderBy(x => x).SequenceEqual(actual.OrderBy(x => x)));
}
