Add assert_cmd_err and assert_ok macros to tests

These macros allow easier comparisions using the new error type.  This
patch fixes all tests and updates nitrokey-test to 0.2.0 so that it
integrates with the new error structure.

Some tests may still fail until CommunicationError::NotConnected is
actually returned.

1 files changed, 1 insertions, 1 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 99ddd0c..cfe1579 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,4 +19,4 @@ rand_core = {version = "0.3", default-features = false}
 rand_os = {version = "0.1"}
 
 [dev-dependencies]
-nitrokey-test = {version = "0.1"}
+nitrokey-test = {version = "0.2"}