public void IsValidReturnsFalseWhenGivenNullObjectToValidate()
{
IValidationRule <string> rule = new StringLengthMustBeInRangeRule <string>(s => s, "Name", 0);
bool isValid = rule.IsValid(null);
Assert.IsFalse(isValid, "Null object evaluated to true when validated.");
}
public void GetErrorMessageReturnsStringWhenGivenNullObject()
{
IValidationRule <string> rule = new StringLengthMustBeInRangeRule <string>(s => s, "Name", 0, 0);
string errorMessage = rule.GetErrorMessage(null);
Assert.IsNotNull(errorMessage);
Assert.IsNotEmpty(errorMessage);
}
public void IsValidReturnsFalseForEmptyStringWhenMinimumLengthIs1()
{
const int minimumLength = 1;
IValidationRule <string> rule = new StringLengthMustBeInRangeRule <string>(s => s, "Name",
minimumLength);
bool isValid = rule.IsValid(string.Empty);
Assert.IsFalse(isValid, "Empty string evaluated to true when minimum length was 1.");
}
public void GetErrorMessageReturnsMessageContainingMaximumStringLength()
{
const int expectedMaximumLength = 4;
IValidationRule <string> rule = new StringLengthMustBeInRangeRule <string>(s => s, "Name",
0, expectedMaximumLength);
string errorMessage = rule.GetErrorMessage(string.Empty);
Assert.IsTrue(errorMessage.Contains(expectedMaximumLength.ToString()),
"Message did not contain maximum string length.");
}
public void GetErrorMessageReturnsMessageContainingErrornousStringLength()
{
const string stringToValidate = "123";
int expectedLength = stringToValidate.Length;
IValidationRule <string> rule = new StringLengthMustBeInRangeRule <string>(s => s, "Name", 0, 0);
string errorMessage = rule.GetErrorMessage(stringToValidate);
Assert.IsTrue(errorMessage.Contains(expectedLength.ToString()),
"Message did not contain string's length.");
}
public void IsValidReturnsTrueForStringWhoseLengthEqualsMinAndMax()
{
const string stringToValidate = "12345";
const int length = 5;
IValidationRule <string> rule = new StringLengthMustBeInRangeRule <string>(s => s, "Name", length, length);
bool isValid = rule.IsValid(stringToValidate);
Assert.IsTrue(isValid, "'{0}' returned false even though it matched min/max length {1}.",
stringToValidate, length);
}
public void IsValidReturnsTrueForStringWhoseLengthMatchesMaximumLength()
{
const string stringToValidate = "1";
const int maximumLength = 1;
IValidationRule <string> rule = new StringLengthMustBeInRangeRule <string>(s => s, "Name",
0, maximumLength);
bool isValid = rule.IsValid(stringToValidate);
Assert.IsTrue(isValid, "'{0}' returned false even though it matched maximum length {1}.",
stringToValidate, maximumLength);
}
public void IsValidReturnsFalseWhenPropertyToCheckOfGivenObjectIsNull()
{
var medicalVendorInvoice = new FakeMedicalVendorInvoiceBase {
MedicalVendorName = null
};
IValidationRule <FakeMedicalVendorInvoiceBase> rule = new StringLengthMustBeInRangeRule
<FakeMedicalVendorInvoiceBase>(s => s.MedicalVendorName, "MedicalVendorName", 0);
bool isValid = rule.IsValid(medicalVendorInvoice);
Assert.IsFalse(isValid, "Null object evaluated to true when validated.");
}
public void IsValidReturnsFalseForStringWhoseLengthIsOneGreaterThanMaximumLength()
{
const string stringToValidate = "12";
const int maximumLength = 1;
IValidationRule <string> rule = new StringLengthMustBeInRangeRule <string>(s => s, "Name",
0, maximumLength);
bool isValid = rule.IsValid(stringToValidate);
Assert.IsFalse(isValid, "'{0}' returned true even though it exceeded maximum length {1}.",
stringToValidate, maximumLength);
}
public void IsValidReturnsTrueForStringWhoseLengthIsOneLessThanMax()
{
const string stringToValidate = "12";
const int maximumLength = 3;
IValidationRule <string> rule = new StringLengthMustBeInRangeRule <string>(s => s, "Name",
0, maximumLength);
bool isValid = rule.IsValid(stringToValidate);
Assert.IsTrue(isValid, "'{0}' returned false even though it was one less than maximum length {1}.",
stringToValidate, maximumLength);
}
public void GetErrorMessageReturnsStringWhenGivenObjectWithNullProperty()
{
var medicalVendorInvoice = new FakeMedicalVendorInvoiceBase {
MedicalVendorName = null
};
IValidationRule <FakeMedicalVendorInvoiceBase> rule = new StringLengthMustBeInRangeRule
<FakeMedicalVendorInvoiceBase>(s => s.MedicalVendorName, "MedicalVendorName", 0, 0);
string errorMessage = rule.GetErrorMessage(medicalVendorInvoice);
Assert.IsNotNull(errorMessage);
Assert.IsNotEmpty(errorMessage);
}
public void IsValidReturnsTrueForStringWhoseLengthExceedsMinimumLength()
{
string stringToValidate = "123";
const int minimumLength = 3;
IValidationRule <string> rule = new StringLengthMustBeInRangeRule <string>(s => s, "Name",
minimumLength);
for (int i = 4; i < 10; i++)
{
stringToValidate += i;
bool isValid = rule.IsValid(stringToValidate);
Assert.IsTrue(isValid, "'{0}' returned false even though it matched minimum length {1}.",
stringToValidate, minimumLength);
}
}
public void IsValidReturnsFalseForStringWhoseLengthDoesNotEqualMinAndMax()
{
const string stringLessThanMin = "1234";
const string stringMoreThanMax = "123456";
const int length = 5;
IValidationRule <string> rule = new StringLengthMustBeInRangeRule <string>(s => s, "Name",
length, length);
bool isMinStringValid = rule.IsValid(stringLessThanMin);
bool isMaxStringValid = rule.IsValid(stringMoreThanMax);
Assert.IsFalse(isMinStringValid, "'{0}' returned true even though it was less than min/max length {1}.",
stringLessThanMin, length);
Assert.IsFalse(isMaxStringValid, "'{0}' returned true even though it was more than min/max length {1}.",
stringMoreThanMax, length);
}
public void GetErrorMessageReturnsMessageContainingStringLengthMinLengthAndMaxLengthWhenAllGiven()
{
const string stringToValidate = "123";
int expectedLength = stringToValidate.Length;
const int expectedMinimumLength = 64156;
const int expectedMaximumLength = 99591;
IValidationRule <string> rule = new StringLengthMustBeInRangeRule <string>(s => s, "Name",
expectedMinimumLength, expectedMaximumLength);
string errorMessage = rule.GetErrorMessage(stringToValidate);
Assert.IsTrue(errorMessage.Contains(expectedMinimumLength.ToString()),
"Message did not contain minimum string length.");
Assert.IsTrue(errorMessage.Contains(expectedMaximumLength.ToString()),
"Message did not contain maximum string length.");
Assert.IsTrue(errorMessage.Contains(expectedLength.ToString()),
"Message did not contain string's length.");
}
