private void ShouldCreateInstance(IEnumUtilities enumUtilities)
{
try
{
var _ = new EnumOptionsExtractor(enumUtilities);
}
catch
{
Assert.True(false, "Exception was thrown when none was expected!");
}
}
private void ShouldOutputNullIfNotEnum(
Type propType,
[Frozen] Mock <IEnumUtilities> enumUtils,
EnumOptionsExtractor sut
)
{
enumUtils.Setup(eu => eu.IsEnum(It.IsAny <Type>())).Returns(false);
var _ = sut.TryGetEnumOptions(propType, out var options);
Assert.Null(options);
}
private void ShouldReturnFalseIfNotEnum(
Type propType,
[Frozen] Mock <IEnumUtilities> enumUtils,
EnumOptionsExtractor sut
)
{
enumUtils.Setup(eu => eu.IsEnum(It.IsAny <Type>())).Returns(false);
var isEnum = sut.TryGetEnumOptions(propType, out _);
Assert.False(isEnum);
}
private void ShouldVerifyIfTypeIsEnumWithEnumUtils(
Type propType,
[Frozen] Mock <IEnumUtilities> enumUtils,
EnumOptionsExtractor sut
)
{
enumUtils.Setup(eu => eu.IsEnum(It.IsAny <Type>()));
var _ = sut.TryGetEnumOptions(propType, out var _);
enumUtils.Verify(eu => eu.IsEnum(propType), Times.Once);
}
private void ShouldGetNamesFromEnumUtils(
Type propType,
[Frozen] Mock <IEnumUtilities> enumUtils,
EnumOptionsExtractor sut
)
{
enumUtils.Setup(eu => eu.IsEnum(It.IsAny <Type>())).Returns(true);
enumUtils.Setup(eu => eu.GetNames(It.IsAny <Type>())).Returns(new string[] { });
enumUtils.Setup(eu => eu.GetValues(It.IsAny <Type>())).Returns(new int[] { });
var _ = sut.TryGetEnumOptions(propType, out var _);
enumUtils.Verify(eu => eu.GetNames(propType), Times.Once);
}
private void ShouldReturnTrueIfEnumType(
Type propType,
[Frozen] Mock <IEnumUtilities> enumUtils,
EnumOptionsExtractor sut
)
{
enumUtils.Setup(eu => eu.IsEnum(It.IsAny <Type>())).Returns(true);
enumUtils.Setup(eu => eu.GetNames(It.IsAny <Type>())).Returns(new string[] { });
enumUtils.Setup(eu => eu.GetValues(It.IsAny <Type>())).Returns(new int[] { });
var isEnum = sut.TryGetEnumOptions(propType, out _);
Assert.True(isEnum);
}
private void ShouldGetFieldsFromEnumUtils(
Type propType,
string[] names,
int[] values,
[Frozen] Mock <IEnumUtilities> enumUtils,
EnumOptionsExtractor sut
)
{
var expectedResult = values.Select((value, index) => new FieldOption {
Name = names[index], Value = value
})
.ToArray();
enumUtils.Setup(eu => eu.IsEnum(It.IsAny <Type>())).Returns(true);
enumUtils.Setup(eu => eu.GetNames(It.IsAny <Type>())).Returns(names);
enumUtils.Setup(eu => eu.GetValues(It.IsAny <Type>())).Returns(values);
var _ = sut.TryGetEnumOptions(propType, out var options);
Assert.Equal(expectedResult, options);
}
private void ShouldThrowArgumentNullExceptionWhenPropertyTypeIsNull(
EnumOptionsExtractor sut
)
{
Assert.Throws <ArgumentNullException>(() => sut.TryGetEnumOptions(null, out _));
}
