public void RandomSymbolFromStringTest_LongString_20times_NotCompare()
{
// arrange
var line = "asadfghjkhkjghgdfretyui";
var fakeRandomIntegerProvider = new Mock <IGenerateInteger>();
fakeRandomIntegerProvider.Setup(f => f.Generate(0, line.Length - 1)).Returns(0);
var realRamdomIntegerProvider = new RandomIntegerProvider();
string valuesFromFake = string.Empty;
string valuesFromReal = string.Empty;
// act
for (int i = 0; i < 20; i++)
{
valuesFromFake += LineParser.RandomSymbolFromString(line, fakeRandomIntegerProvider.Object);
valuesFromReal += LineParser.RandomSymbolFromString(line, realRamdomIntegerProvider);
}
// assert
fakeRandomIntegerProvider.Verify(f => f.Generate(0, line.Length - 1), Times.Exactly(20));
Assert.NotEqual(valuesFromReal, valuesFromFake);
}
public void RandomSymbolFromStringTest_NullRandomIntegerProvider()
{
// arrange
string s = "asdfgb";
RandomIntegerProvider rand = null;
// act and assert
Assert.Throws <ArgumentNullException>(() => LineParser.RandomSymbolFromString(s, rand));
}
public void RandomSymbolFromString_OneSymbolString_Symbol(string line, char actual)
{
//
var intProvider = new RandomIntegerProvider();
// act
var expected = LineParser.RandomSymbolFromString(line, intProvider);
// assert
Assert.Equal(expected, actual);
}