1 files changed, 25 insertions, 0 deletions
diff --git a/tests/vcomponent-control.scm b/tests/vcomponent-control.scm
new file mode 100644
index 00000000..318c4335
--- /dev/null
+++ b/tests/vcomponent-control.scm
@@ -0,0 +1,25 @@
+(((vcomponent control) with-replaced-attrs)
+ ((vcomponent) parse-calendar)
+ ((vcomponent base) attr))
+
+
+
+(define ev (call-with-input-string
+               "BEGIN:DUMMY
+KEY:value
+END:DUMMY"
+             parse-calendar))
+
+;; Test that temoraries are set and restored
+(test-equal "value" (attr ev 'KEY))
+(with-replaced-attrs (ev (KEY "other"))
+                     (test-equal "other" (attr ev 'KEY)))
+(test-equal "value" (attr ev 'KEY))
+
+;; Test that they are restored on non-local exit
+(catch #t
+  (lambda ()
+   (with-replaced-attrs (ev (KEY "other"))
+                        (throw 'any)))
+  (lambda _
+    (test-equal "value" (attr ev 'KEY))))