75 lines
		
	
	
	
		
			1.9 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			75 lines
		
	
	
	
		
			1.9 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
#include "test-tool.h"
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#include "cache.h"
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#include "object.h"
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#include "decorate.h"
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int cmd__example_decorate(int argc, const char **argv)
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{
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	struct decoration n;
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	struct object_id one_oid = { {1} };
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	struct object_id two_oid = { {2} };
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	struct object_id three_oid = { {3} };
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	struct object *one, *two, *three;
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	int decoration_a, decoration_b;
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	void *ret;
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	int i, objects_noticed = 0;
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	/*
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	 * The struct must be zero-initialized.
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	 */
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	memset(&n, 0, sizeof(n));
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	/*
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	 * Add 2 objects, one with a non-NULL decoration and one with a NULL
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	 * decoration.
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	 */
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	one = lookup_unknown_object(&one_oid);
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	two = lookup_unknown_object(&two_oid);
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	ret = add_decoration(&n, one, &decoration_a);
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	if (ret)
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		BUG("when adding a brand-new object, NULL should be returned");
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	ret = add_decoration(&n, two, NULL);
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	if (ret)
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		BUG("when adding a brand-new object, NULL should be returned");
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	/*
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	 * When re-adding an already existing object, the old decoration is
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	 * returned.
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	 */
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	ret = add_decoration(&n, one, NULL);
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	if (ret != &decoration_a)
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		BUG("when readding an already existing object, existing decoration should be returned");
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	ret = add_decoration(&n, two, &decoration_b);
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	if (ret)
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		BUG("when readding an already existing object, existing decoration should be returned");
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	/*
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	 * Lookup returns the added declarations, or NULL if the object was
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	 * never added.
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	 */
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	ret = lookup_decoration(&n, one);
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	if (ret)
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		BUG("lookup should return added declaration");
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	ret = lookup_decoration(&n, two);
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	if (ret != &decoration_b)
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		BUG("lookup should return added declaration");
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	three = lookup_unknown_object(&three_oid);
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	ret = lookup_decoration(&n, three);
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	if (ret)
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		BUG("lookup for unknown object should return NULL");
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	/*
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	 * The user can also loop through all entries.
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	 */
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	for (i = 0; i < n.size; i++) {
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		if (n.entries[i].base)
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			objects_noticed++;
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	}
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	if (objects_noticed != 2)
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		BUG("should have 2 objects");
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	return 0;
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}
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