public async Task Calculate_Should_Throw()
{
// Arrange
var equationValidatorMock = CreateEquationValidatorMock();
var loggerMock = CreateLoggerMock <RoslynCalculator>();
ICalculator calculator = new RoslynCalculator(
equationValidatorMock.Object,
loggerMock.Object);
// Act & Assert
await Assert.ThrowsAsync <ArgumentNullException>(() =>
calculator.CalculateAsync(null, CancellationToken.None));
}
public async Task Calculate_Should_Succeed(string equation, decimal expected)
{
// Arrange
var equationValidatorMock = CreateEquationValidatorMock();
var loggerMock = CreateLoggerMock <RoslynCalculator>();
ICalculator calculator = new RoslynCalculator(
equationValidatorMock.Object,
loggerMock.Object);
// Act
var result = await calculator.CalculateAsync(equation, CancellationToken.None);
// Assert
result.Should().Be(expected);
equationValidatorMock.Verify(x
=> x.EnsureEquationIsValid(It.IsAny <string>()), Times.Once);
}
