diff --git a/tests/test_virgl_cmd.c b/tests/test_virgl_cmd.c
index a1dde11..b618cdc 100644
--- a/tests/test_virgl_cmd.c
+++ b/tests/test_virgl_cmd.c
@@ -46,7 +46,7 @@ START_TEST(virgl_test_clear)
     ck_assert_int_eq(ret, 0);    
 
     /* init and create simple 2D resource */
-    ret = testvirgl_create_backed_simple_2d_res(&res, 1);
+    ret = testvirgl_create_backed_simple_2d_res(&res, 1, 50, 50);
     ck_assert_int_eq(ret, 0);
     
     /* attach resource to context */
@@ -118,11 +118,11 @@ START_TEST(virgl_test_blit_simple)
     ck_assert_int_eq(ret, 0);
 
     /* init and create simple 2D resource */
-    ret = testvirgl_create_backed_simple_2d_res(&res, 1);
+    ret = testvirgl_create_backed_simple_2d_res(&res, 1, 50, 50);
     ck_assert_int_eq(ret, 0);
 
     /* init and create simple 2D resource */
-    ret = testvirgl_create_backed_simple_2d_res(&res2, 2);
+    ret = testvirgl_create_backed_simple_2d_res(&res2, 2, 50, 50);
     ck_assert_int_eq(ret, 0);
 
     /* attach resource to context */
diff --git a/tests/testvirgl.c b/tests/testvirgl.c
index bdafc09..60233ed 100644
--- a/tests/testvirgl.c
+++ b/tests/testvirgl.c
@@ -49,12 +49,12 @@ void testvirgl_init_simple_1d_resource(struct virgl_renderer_resource_create_arg
     res->flags = 0;
 }
 
-void testvirgl_init_simple_buffer(struct virgl_renderer_resource_create_args *res, int handle)
+void testvirgl_init_simple_buffer_sized(struct virgl_renderer_resource_create_args *res, int handle, int width)
 {
     res->handle = handle;
     res->target = PIPE_BUFFER;
     res->format = PIPE_FORMAT_R8_UNORM;
-    res->width = 50;
+    res->width = width;
     res->height = 1;
     res->depth = 1;
     res->array_size = 1;
@@ -64,6 +64,11 @@ void testvirgl_init_simple_buffer(struct virgl_renderer_resource_create_args *re
     res->flags = 0;
 }
 
+void testvirgl_init_simple_buffer(struct virgl_renderer_resource_create_args *res, int handle)
+{
+    testvirgl_init_simple_buffer_sized(res, handle, 50);
+}
+
 void testvirgl_init_simple_2d_resource(struct virgl_renderer_resource_create_args *res, int handle)
 {
     res->handle = handle;
@@ -145,13 +150,15 @@ void testvirgl_fini_ctx_cmdbuf(struct virgl_context *ctx)
 }
 
 int testvirgl_create_backed_simple_2d_res(struct virgl_resource *res,
-					  int handle)
+					  int handle, int w, int h)
 {
     struct virgl_renderer_resource_create_args args;
     uint32_t backing_size;
     int ret;
 
     testvirgl_init_simple_2d_resource(&args, handle);
+    args.width = w;
+    args.height = h;
     ret = virgl_renderer_resource_create(&args, NULL, 0);
     ck_assert_int_eq(ret, 0);
 
@@ -181,3 +188,30 @@ void testvirgl_destroy_backed_res(struct virgl_resource *res)
     free(iovs);
     virgl_renderer_resource_unref(res->handle);
 }
+
+int testvirgl_create_backed_simple_buffer(struct virgl_resource *res,
+					  int handle, int size, int binding)
+{
+    struct virgl_renderer_resource_create_args args;
+    uint32_t backing_size;
+    int ret;
+
+    testvirgl_init_simple_buffer_sized(&args, handle, size);
+    args.bind = binding;
+    ret = virgl_renderer_resource_create(&args, NULL, 0);
+    ck_assert_int_eq(ret, 0);
+
+    res->handle = handle;
+    res->base.target = args.target;
+    res->base.format = args.format;
+    res->base.bind = args.bind;
+    backing_size = args.width * args.height * util_format_get_blocksize(res->base.format);
+    res->iovs = malloc(sizeof(struct iovec));
+
+    res->iovs[0].iov_base = malloc(backing_size);
+    res->iovs[0].iov_len = backing_size;
+    res->niovs = 1;
+
+    virgl_renderer_resource_attach_iov(res->handle, res->iovs, res->niovs);
+    return 0;
+}
diff --git a/tests/testvirgl.h b/tests/testvirgl.h
index 267ab5e..4043e2c 100644
--- a/tests/testvirgl.h
+++ b/tests/testvirgl.h
@@ -56,6 +56,7 @@ struct virgl_resource {
 
 
 void testvirgl_init_simple_buffer(struct virgl_renderer_resource_create_args *res, int handle);
+void testvirgl_init_simple_buffer_sized(struct virgl_renderer_resource_create_args *res, int handle, int width);
 void testvirgl_init_simple_1d_resource(struct virgl_renderer_resource_create_args *args, int handle);
 void testvirgl_init_simple_2d_resource(struct virgl_renderer_resource_create_args *res, int handle);
 int testvirgl_init_single_ctx(void);
@@ -66,6 +67,8 @@ int testvirgl_init_ctx_cmdbuf(struct virgl_context *ctx);
 void testvirgl_fini_ctx_cmdbuf(struct virgl_context *ctx);
 
 int testvirgl_create_backed_simple_2d_res(struct virgl_resource *res,
-					  int handle);
+					  int handle, int w, int h);
+int testvirgl_create_backed_simple_buffer(struct virgl_resource *res,
+					  int handle, int size, int bind);
 void testvirgl_destroy_backed_res(struct virgl_resource *res);
 #endif