1 files changed, 110 insertions, 0 deletions
diff --git a/tests/core/oidmap.c b/tests/core/oidmap.c
new file mode 100644
index 000000000..ec4b5e775
--- /dev/null
+++ b/tests/core/oidmap.c
@@ -0,0 +1,110 @@
+#include "clar_libgit2.h"
+#include "oidmap.h"
+
+GIT__USE_OIDMAP;
+
+typedef struct {
+	git_oid oid;
+	size_t extra;
+} oidmap_item;
+
+#define NITEMS 0x0fff
+
+void test_core_oidmap__basic(void)
+{
+	git_oidmap *map;
+	oidmap_item items[NITEMS];
+	uint32_t i, j;
+
+	for (i = 0; i < NITEMS; ++i) {
+		items[i].extra = i;
+		for (j = 0; j < GIT_OID_RAWSZ / 4; ++j) {
+			items[i].oid.id[j * 4    ] = (unsigned char)i;
+			items[i].oid.id[j * 4 + 1] = (unsigned char)(i >> 8);
+			items[i].oid.id[j * 4 + 2] = (unsigned char)(i >> 16);
+			items[i].oid.id[j * 4 + 3] = (unsigned char)(i >> 24);
+		}
+	}
+
+	map = git_oidmap_alloc();
+	cl_assert(map != NULL);
+
+	for (i = 0; i < NITEMS; ++i) {
+		khiter_t pos;
+		int ret;
+
+		pos = kh_get(oid, map, &items[i].oid);
+		cl_assert(pos == kh_end(map));
+
+		pos = kh_put(oid, map, &items[i].oid, &ret);
+		cl_assert(ret != 0);
+
+		kh_val(map, pos) = &items[i];
+	}
+
+
+	for (i = 0; i < NITEMS; ++i) {
+		khiter_t pos;
+
+		pos = kh_get(oid, map, &items[i].oid);
+		cl_assert(pos != kh_end(map));
+
+		cl_assert_equal_p(kh_val(map, pos), &items[i]);
+	}
+
+	git_oidmap_free(map);
+}
+
+void test_core_oidmap__hash_collision(void)
+{
+	git_oidmap *map;
+	oidmap_item items[NITEMS];
+	uint32_t i, j;
+
+	for (i = 0; i < NITEMS; ++i) {
+		uint32_t segment = i / 8;
+		int modi = i - (segment * 8);
+
+		items[i].extra = i;
+
+		for (j = 0; j < GIT_OID_RAWSZ / 4; ++j) {
+			items[i].oid.id[j * 4    ] = (unsigned char)modi;
+			items[i].oid.id[j * 4 + 1] = (unsigned char)(modi >> 8);
+			items[i].oid.id[j * 4 + 2] = (unsigned char)(modi >> 16);
+			items[i].oid.id[j * 4 + 3] = (unsigned char)(modi >> 24);
+		}
+
+		items[i].oid.id[ 8] = (unsigned char)i;
+		items[i].oid.id[ 9] = (unsigned char)(i >> 8);
+		items[i].oid.id[10] = (unsigned char)(i >> 16);
+		items[i].oid.id[11] = (unsigned char)(i >> 24);
+	}
+
+	map = git_oidmap_alloc();
+	cl_assert(map != NULL);
+
+	for (i = 0; i < NITEMS; ++i) {
+		khiter_t pos;
+		int ret;
+
+		pos = kh_get(oid, map, &items[i].oid);
+		cl_assert(pos == kh_end(map));
+
+		pos = kh_put(oid, map, &items[i].oid, &ret);
+		cl_assert(ret != 0);
+
+		kh_val(map, pos) = &items[i];
+	}
+
+
+	for (i = 0; i < NITEMS; ++i) {
+		khiter_t pos;
+
+		pos = kh_get(oid, map, &items[i].oid);
+		cl_assert(pos != kh_end(map));
+
+		cl_assert_equal_p(kh_val(map, pos), &items[i]);
+	}
+
+	git_oidmap_free(map);
+}