1 files changed, 41 insertions, 0 deletions
diff --git a/tests/unit/bson/bson_append_double.c b/tests/unit/bson/bson_append_double.c
new file mode 100644
index 0000000..de62c15
--- /dev/null
+++ b/tests/unit/bson/bson_append_double.c
@@ -0,0 +1,41 @@
+#include "tap.h"
+#include "test.h"
+#include "bson.h"
+
+#include <string.h>
+
+void
+test_bson_double (void)
+{
+  bson *b;
+  double d = 3.14;
+
+  b = bson_new ();
+  ok (bson_append_double (b, "double", d), "bson_append_double() works");
+  bson_finish (b);
+
+  cmp_ok (bson_size (b), "==", 21, "BSON double element size check");
+  ok (memcmp (bson_data (b),
+              "\025\000\000\000\001\144\157\165\142\154\145\000\037\205\353"
+              "\121\270\036\011\100\000",
+              bson_size (b)) == 0,
+      "BSON double element contents check");
+
+  bson_free (b);
+
+  b = bson_new ();
+  ok (bson_append_double (b, NULL, d) == FALSE,
+      "bson_append_double() with a NULL key should fail");
+  ok (bson_append_double (NULL, "double", d) == FALSE,
+      "bson_append_double() without a BSON object should fail");
+  bson_finish (b);
+  cmp_ok (bson_size (b), "==", 5,
+          "BSON object should be empty");
+
+  ok (bson_append_double (b, "d", d) == FALSE,
+      "Appending to a finished element should fail");
+
+  bson_free (b);
+}
+
+RUN_TEST (7, bson_double);