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144 lines
2.8 KiB
Text
144 lines
2.8 KiB
Text
Construction
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Validation
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Testing
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Construction will generate some state
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Validation will ensure that everything is kosher
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Tests use combinations of the above to check things
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##### Example:
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parent = gst_object_get_parent(object);
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setup:
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create: new object
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action: object = gst_object_new();
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validation: object != NULL, object->parent == NULL, etc
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[cleanup: gst_object_destroy(object);]
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create: new parent
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action: parent = gst_object_new();
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validation: parent != NULL, parent->parent == NULL, etc
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[cleanup: gst_object_destroy(parent);]
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create: set object's parent
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precondition: object->parent == NULL
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action: gst_object_set_parent(object,parent);
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validation: object->parent = parent
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preconditions:
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nothing
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action:
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curparent = gst_element_get_parent(object);
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validation:
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curparent == object->parent
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curparent == parent
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cleanup:
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nothing
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##### Resulting code:
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///// setup
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// new object
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object = gst_object_new();
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ASSERT(object != NULL);
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ASSERT(object->parent == NULL);
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// new object
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parent = gst_object_new();
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ASSERT(parent != NULL);
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ASSERT(parent->parent == NULL);
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// set object parent
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ASSERT(object->parent == NULL);
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gst_object_set_parent(object,parent);
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ASSERT(object->parent != NULL);
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///// preconditions
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///// action
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curparent = gst_element_get_parent(object);
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///// validation
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ASSERT(object->parent == parent);
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///// cleanup
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gst_object_destroy(parent);
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gst_object_destroy(object);
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##### XML descriptions
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<construct name="new object">
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<variable>
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GstObject *object;
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</variabls>
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<action>
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object = gst_object_new();
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</action>
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<validation>
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<assert>
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object != NULL
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</assert>
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<assert>
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GST_IS_OBJECT(object)
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<assert>
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object->parent == NULL
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</assert>
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</validation>
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<cleanup>
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<validation>
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<assert>
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object != NULL
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</assert>
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<assert>
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GST_IS_OBJECT(object)
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</assert>
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</validation>
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<action>
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gst_object_destroy(object);
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</action>
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</cleanup>
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</construct>
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<construct name="set object parent">
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<variable>
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GstObject *object;
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</variable>
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<variable>
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GstObject *object;
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</variable>
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<precondition>
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<assert>
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object->parent == NULL
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</assert>
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</precondition>
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<action>
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gst_object_set_parent(object,parent);
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</action>
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<validation>
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<assert>
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object->parent == parent
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</assert>
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</validation>
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</construct>
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<test name="set object parent">
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<variable>
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GstObject *object;
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<variable>
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</variable>
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GstObject *parent;
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<variable>
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</variable>
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GstObject *curparent;
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</variable>
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<setup>
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object = gst_object_new();
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parent = gst_object_new();
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gst_object_set_parent(object,parent);
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</setup>
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<action>
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curparent = gst_element_get_parent(object);
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</action>
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<validation>
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curparent == object->parent
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curparent == parent
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</validation>
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</test>
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