QA:Testcase calc interactive

Description

Run the Calc command-line calculator in interactive mode.

Setup

You'll need a shell.

Install the packages calc and calc-stdrc.

How to test

1. From the command line, run calc -q. (The -q option prevents any startup scripts in your environment from interfering.
2. Try basic arithmetic (2 + 4, followed by the enter key.)
3. Use the up arrow to scroll back in the history, and the down arrow to scroll down.
4. Ctrl-A should jump to the beginning of a line, and Ctrl-E to the end.
5. Type exit to exit.

Expected Results

1. Math should work.
2. Line-editing functions should work.
3. The command should exit cleanly (echo $? at a Bash shell immediately after exit should yield "0").