From 3b7320cd84f55911194cd272935835aae8a2c77f Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Fri, 8 Sep 2017 09:20:16 +0100
Subject: [PATCH] [functional-tests] a few more bcache tests

---
 functional-tests/bcache/bcache-tests.scm | 32 ++++++++++++++++++++++++
 functional-tests/bcache/bcache.c         |  3 ++-
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/functional-tests/bcache/bcache-tests.scm b/functional-tests/bcache/bcache-tests.scm
index 997f4dd..b2be812 100644
--- a/functional-tests/bcache/bcache-tests.scm
+++ b/functional-tests/bcache/bcache-tests.scm
@@ -34,5 +34,37 @@
       (with-bcache (cache md 16)
         (with-block (b cache 0 (get-flags))
                     #f))))
+
+  (define-scenario (bcache write-ref)
+    "get a write-ref on a block"
+    (with-empty-metadata (md 16)
+      (with-bcache (cache md 16)
+        (with-block (b cache 0 (get-flags dirty))
+                    #f))))
+
+  (define-scenario (bcache zero-ref)
+    "get a write-ref on a block"
+    (with-empty-metadata (md 16)
+      (with-bcache (cache md 16)
+        (with-block (b cache 0 (get-flags zero))
+                    #f))))
+
+  (define-scenario (bcache multiple-refs-to-same-block)
+    "the same block can be held multiple times"
+    (with-empty-metadata (md 16)
+      (with-bcache (cache md 16)
+        (with-block (b cache 0 (get-flags))
+                    (with-block (b cache 0 (get-flags))
+                                (with-block (b cache 0 (get-flags))
+                                            #f))))))
+
+  (define-scenario (bcache multiple-blocks)
+    "multiple blocks can be held at once"
+    (with-empty-metadata (md 16)
+      (with-bcache (cache md 16)
+        (with-block (b cache 0 (get-flags))
+                    (with-block (b cache 1 (get-flags))
+                                (with-block (b cache 2 (get-flags))
+                                            #f))))))
   )
 
diff --git a/functional-tests/bcache/bcache.c b/functional-tests/bcache/bcache.c
index d8f172b..ca1921d 100644
--- a/functional-tests/bcache/bcache.c
+++ b/functional-tests/bcache/bcache.c
@@ -707,7 +707,8 @@ struct bcache *bcache_simple(const char *path, unsigned nr_cache_blocks)
 	}
 
 	s = info.st_size;
-	cache = bcache_create(fd, MD_BLOCK_SIZE >> SECTOR_SHIFT, s / MD_BLOCK_SIZE, nr_cache_blocks);
+	cache = bcache_create(fd, MD_BLOCK_SIZE >> SECTOR_SHIFT,
+			      s / MD_BLOCK_SIZE, nr_cache_blocks);
 	if (!cache)
 		close(fd);