tests,json: Add more tests

* t-config-opt.in.json,
 t-config-opt.out.json,
 t-import.in.json,
 t-import.out.json,
 t-sign.in.json,
 t-sign.out.json: New.
--
These should actually have been in a previous commit as
they are already registered.

1 files changed, 6 insertions, 0 deletions

diff --git a/tests/json/t-config-opt.out.json b/tests/json/t-config-opt.out.json
new file mode 100644
index 00000000..57f11588
--- /dev/null
+++ b/tests/json/t-config-opt.out.json
@@ -0,0 +1,6 @@
+{
+   "option":       {
+           "name": "default-key",
+           "argname":      "NAME"
+   }
+}