C# Class NUnit.Framework.Constraints.MessageWriter

MessageWriter is the abstract base for classes that write constraint descriptions and messages in some form. The class has separate methods for writing various components of a message, allowing implementations to tailor the presentation as needed.

Inheritance: System.IO.StringWriter

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Public Methods

Method	Description
DisplayDifferences ( NUnit.Framework.Constraints.ConstraintResult result ) : void	Display Expected and Actual lines for a constraint. This is called by MessageWriter's default implementation of WriteMessageTo and provides the generic two-line display.
DisplayDifferences ( object expected, object actual ) : void	Display Expected and Actual lines for given _values. This method may be called by constraints that need more control over the display of actual and expected _values than is provided by the default implementation.
DisplayDifferences ( object expected, object actual, NUnit.Framework.Constraints.Tolerance tolerance ) : void	Display Expected and Actual lines for given _values, including a tolerance value on the Expected line.
DisplayStringDifferences ( string expected, string actual, int mismatch, bool ignoreCase, bool clipping ) : void	Display the expected and actual string _values on separate lines. If the mismatch parameter is >=0, an additional line is displayed line containing a caret that points to the mismatch point.
WriteActualValue ( object actual ) : void	Writes the text for an actual value.
WriteCollectionElements ( IEnumerable collection, long start, int max ) : void	Writes the text for a collection value, starting at a particular point, to a max length
WriteMessageLine ( int level, string message ) : void	Method to write single line message with optional args, usually written to precede the general failure message, at a given indentation level.
WriteMessageLine ( string message ) : void	Method to write single line message with optional args, usually written to precede the general failure message.
WriteValue ( object val ) : void	Writes the text for a generalized value.

Protected Methods

Method	Description
MessageWriter ( ) : System.IO	Construct a MessageWriter given a culture

Method Details

DisplayDifferences() public abstract method

Display Expected and Actual lines for a constraint. This is called by MessageWriter's default implementation of WriteMessageTo and provides the generic two-line display.

public abstract DisplayDifferences ( NUnit.Framework.Constraints.ConstraintResult result ) : void
result	NUnit.Framework.Constraints.ConstraintResult	The failing constraint result
return	void

DisplayDifferences() public abstract method

Display Expected and Actual lines for given _values. This method may be called by constraints that need more control over the display of actual and expected _values than is provided by the default implementation.

public abstract DisplayDifferences ( object expected, object actual ) : void
expected	object	The expected value
actual	object	The actual value causing the failure
return	void

DisplayDifferences() public abstract method

Display Expected and Actual lines for given _values, including a tolerance value on the Expected line.

public abstract DisplayDifferences ( object expected, object actual, NUnit.Framework.Constraints.Tolerance tolerance ) : void
expected	object	The expected value
actual	object	The actual value causing the failure
tolerance	NUnit.Framework.Constraints.Tolerance	The tolerance within which the test was made
return	void

DisplayStringDifferences() public abstract method

Display the expected and actual string _values on separate lines. If the mismatch parameter is >=0, an additional line is displayed line containing a caret that points to the mismatch point.

public abstract DisplayStringDifferences ( string expected, string actual, int mismatch, bool ignoreCase, bool clipping ) : void
expected	string	The expected string value
actual	string	The actual string value
mismatch	int	The point at which the strings don't match or -1
ignoreCase	bool	If true, case is ignored in locating the point where the strings differ
clipping	bool	If true, the strings should be clipped to fit the line
return	void

MessageWriter() protected method

Construct a MessageWriter given a culture

protected MessageWriter ( ) : System.IO
return	System.IO

WriteActualValue() public abstract method

Writes the text for an actual value.

public abstract WriteActualValue ( object actual ) : void
actual	object	The actual value.
return	void

WriteCollectionElements() public abstract method

Writes the text for a collection value, starting at a particular point, to a max length

public abstract WriteCollectionElements ( IEnumerable collection, long start, int max ) : void
collection	IEnumerable	The collection containing elements to write.
start	long	The starting point of the elements to write
max	int	The maximum number of elements to write
return	void

WriteMessageLine() public abstract method

Method to write single line message with optional args, usually written to precede the general failure message, at a given indentation level.

public abstract WriteMessageLine ( int level, string message ) : void
level	int	The indentation level of the message
message	string	The message to be written
return	void

WriteMessageLine() public method

Method to write single line message with optional args, usually written to precede the general failure message.

public WriteMessageLine ( string message ) : void
message	string	The message to be written
return	void

WriteValue() public abstract method

Writes the text for a generalized value.

public abstract WriteValue ( object val ) : void
val	object	The value.
return	void