added tests for new ci stage; restructured go tool installs; closes #63; closes #46 (#64)

tests/utils.py

@@ -0,0 +1,39 @@
+import sys
+from contextlib import redirect_stdout, redirect_stderr
+
+from cmd2.utils import StdSim
+
+
+def normalize(block):
+    """ Normalize a block of text to perform comparison.
+    Strip newlines from the very beginning and very end  Then split into separate lines and strip trailing whitespace
+    from each line.
+    """
+    assert isinstance(block, str)
+    block = block.strip("\n")
+    return [line.rstrip() for line in block.splitlines()]
+
+
+def run_cmd(app, cmd):
+    """ Clear out and err StdSim buffers, run the command, and return out and err """
+    saved_sysout = sys.stdout
+    sys.stdout = app.stdout
+
+    # This will be used to capture app.stdout and sys.stdout
+    copy_cmd_stdout = StdSim(app.stdout)
+
+    # This will be used to capture sys.stderr
+    copy_stderr = StdSim(sys.stderr)
+
+    try:
+        app.stdout = copy_cmd_stdout
+        with redirect_stdout(copy_cmd_stdout):
+            with redirect_stderr(copy_stderr):
+                app.onecmd_plus_hooks(cmd)
+    finally:
+        app.stdout = copy_cmd_stdout.inner_stream
+        sys.stdout = saved_sysout
+
+    out = copy_cmd_stdout.getvalue()
+    err = copy_stderr.getvalue()
+    return normalize(out), normalize(err)