CommandMutation_test Class Reference

Description

Verify the behaviour of the type erased closure, which is used by Steam-Layer commands to implement the capturing and later re-invocation of a function.

See also

control::Command

control::CommandDef

control::Mutation

control::UndoMutation

command-basic-test.hpp

Definition at line 78 of file command-mutation-test.cpp.

Private Member Functions
void	checkMutation ()
void	checkStateCapturingMechanism ()
void	checkUndoMutation ()
virtual void	run (Arg)

Member Function Documentation

checkMutation()

void checkMutation ( )

inlineprivate

Test:

check the Mutation functor which is bound to our testFunc(int).

Then create a argument closure and use this to invoke the Mutation and verify actually testFunc(param) is executed.

Definition at line 97 of file command-mutation-test.cpp.

checkUndoMutation()

void checkUndoMutation ( )

inlineprivate

Test:

check the special Mutation which is used to undo a command.

This time, we use our testFunc(int) as implementation of the "undo" function; thus its parameter has now the meaning of an captured state value. Consequently this time the operation which is to be undone would have the signature void(void) . Obviously this is a rather silly "undo" function, but it is easy to check for unit testing. To carry out this test, we first have to trigger the state capturing mechanism; after that, invoking the UndoMutation will call the testFunc with the previously captured state.

Note

Mutation and UndoMutation are value objects, but they refer to a common command state, which for this test is modelled by local variables and which for the real commands is contained in a Command-StorageHolder

Definition at line 142 of file command-mutation-test.cpp.

checkStateCapturingMechanism()

void checkStateCapturingMechanism ( )

inlineprivate

Test:

check the undo memento capturing mechanism in isolation

See also

memento-tie-test.cpp more in-depth coverage

Definition at line 189 of file command-mutation-test.cpp.

Inheritance diagram for CommandMutation_test:

Collaboration diagram for CommandMutation_test:

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The documentation for this class was generated from the following file:

• command-mutation-test.cpp