coverage: fellow_busy_body_seg_return()

src/fellow_cache.c

@@ -4008,6 +4008,9 @@ static size_t fellow_busy_seg_memalloc(buddy_t *membuddy,
 	AZ(fcs->alloc.ptr);
 	AZ(fcs->alloc.size);
 
+	if (FC_INJ)
+		return (0);
+
 	fcs->alloc = buddy_alloc1_ptr_extent_wait(membuddy, FEP_SPC,
 	    fds->seg.size, cram);
 
@@ -5904,6 +5907,7 @@ t_cache(unsigned chksum)
 	const size_t dsksz = 100 * 1024 * 1024;
 	const size_t objsize_hint = 1 * 1024 * 1024;
 	struct fellow_cache_res fcr;
+	int injcount;
 	char *ptr;
 
 	DBGSZ(fellow_disk_seg);
@@ -6049,6 +6053,32 @@ t_cache(unsigned chksum)
 	test_bocdone(fbo, TRUST_ME(hash), 1);
 	fellow_cache_obj_deref(fc, fco);
 
+	// === alloc space error inject
+	fbo = fellow_busy_obj_alloc(fc, &fco, &priv2, 1234).r.ptr;
+	CHECK_OBJ_NOTNULL(fbo, FELLOW_BUSY_MAGIC);
+	fc_inj_reset();
+	injcount = -1;
+	while (injcount) {
+		DBG("injcount=%d", injcount);
+		if (injcount > 0)
+			fc_inj_set(injcount);
+
+		sz = 1234;
+		fcr = fellow_busy_obj_getspace(fbo, &sz, (uint8_t **)&ptr);
+		if (fcr.status == fcr_ok)
+			fellow_busy_obj_extend(fbo, sz);
+		else
+			assert(fcr.status == fcr_allocerr);
+		if (injcount < 0)
+			injcount = fc_inj_count();
+		else
+			injcount--;
+	}
+
+	fellow_busy_obj_trimstore(fbo);
+	test_bocdone(fbo, TRUST_ME(hash), 1);
+	fellow_cache_obj_deref(fc, fco);
+
 	// === hit objsize_max
 	fbo = fellow_busy_obj_alloc(fc, &fco, &priv2, 1234).r.ptr;
 	CHECK_OBJ_NOTNULL(fbo, FELLOW_BUSY_MAGIC);