public void UpdateExpression_SetNullField_ShouldThrowArgumentNullExceptionWithFieldParamName()
{
// Arrange
var updateExpression = new UpdateExpression <ITweet>();
var value = "Some value";
// Act + Assert
var exception = Assert.Throws <ArgumentNullException>(() => updateExpression.Set <string>(null, value), @"ArgumentNullException should be thrown.");
Assert.AreEqual("field", exception.ParamName, @"ParamName should be ""field"".");
}
public void UpdateExpression_SetNullOrWhiteSpaceFieldName_ShouldThrowArgumentNullExceptionWithFieldNameParamName(string fieldName)
{
// Arrange
var updateExpression = new UpdateExpression <ITweet>();
var value = "Some value";
// Act + Assert
var exception = Assert.Throws <ArgumentNullException>(() => updateExpression.Set(fieldName, value), @"ArgumentNullException should be thrown.");
Assert.AreEqual(nameof(fieldName), exception.ParamName, @"ParamName should be ""fieldName"".");
}
public void UpdateExpression_SetValidStringFieldNameAndAnyValueObject_ShouldRegisterSingleSetCommandInUpdateCommands(string fieldName, object value)
{
// Arrange
var updateExpression = new UpdateExpression <ITweet>();
// Act
updateExpression.Set(fieldName, value);
// Assert
Assert.AreEqual(1, updateExpression.UpdateCommands.Count(), "Number of UpdateCommands should be 1.");
var command = updateExpression.UpdateCommands.Single();
Assert.IsNotNull(command, "IUpdateCommand object should not be null.");
Assert.AreEqual("Set", command.UpdateVerb, @"UpdateVerb of the IUpdateCommand should be ""Set"".");
Assert.AreEqual(fieldName, command.FieldName, @"FieldName of the IUpdateCommand should be """ + fieldName + @""".");
Assert.AreSame(value, command.Value, @"Value of the IUpdateCommand should be """ + value + @""".");
}
public void UpdateExpression_SetValidExpressionForFavesFieldAndValidValue_ShouldRegisterSingleSetCommandInUpdateCommands()
{
// Arrange
var updateExpression = new UpdateExpression <ITweet>();
var value = 123;
// Act
updateExpression.Set(t => t.Faves, value);
// Assert
Assert.AreEqual(1, updateExpression.UpdateCommands.Count(), "Number of UpdateCommands should be 1.");
var command = updateExpression.UpdateCommands.Single();
Assert.IsNotNull(command, "IUpdateCommand object should not be null.");
Assert.AreEqual("Set", command.UpdateVerb, @"UpdateVerb of the IUpdateCommand should be ""Set"".");
Assert.AreEqual("Faves", command.FieldName, @"FieldName of the IUpdateCommand should be ""Faves"".");
Assert.AreEqual(value, command.Value, @"Value of the IUpdateCommand should be """ + value + @""".");
}