From cd91e959daa2c21787c5fe878f1a4072d89b18d1 Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Sun, 2 Jun 2019 13:25:15 +0300
Subject: Add: fable.py scaffolding for running scenarios

---
 echo.py | 40 ++++++++++++++++------------------------
 1 file changed, 16 insertions(+), 24 deletions(-)

(limited to 'echo.py')

diff --git a/echo.py b/echo.py
index abc0e52..7a5f186 100644
--- a/echo.py
+++ b/echo.py
@@ -1,43 +1,35 @@
 import subprocess
 
-context = {}
-
-def _save(name, value):
-    context[name] = value
-
-def _get(name):
-    return context[name]
-
 def assertEqual(a, b):
     if a != b:
         raise Exception(
             'expected {!r} == {!r}, but was disappointed'.format(a, b))
 
-def _run_echo(args):
+def _run_echo(ctx, args):
     cmd = '/bin/echo'
     p = subprocess.Popen(
         [cmd] + args, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
         text=True)
     out, err = p.communicate()
-    context["stdout"] = out
-    context["stderr"] = err
-    context["exit_code"] = p.returncode
+    ctx["stdout"] = out
+    ctx["stderr"] = err
+    ctx["exit_code"] = p.returncode
 
-def run_echo_without_args():
-    _run_echo([])
+def run_echo_without_args(ctx):
+    _run_echo(ctx, [])
 
-def run_echo_with_args(args=None):
-    _run_echo(args.split())
+def run_echo_with_args(ctx, args=None):
+    _run_echo(ctx, args.split())
 
-def exit_code_is_zero(exit_code=None):
+def exit_code_is_zero(ctx, exit_code=None):
     exit_code = int(exit_code)
-    assertEqual(_get("exit_code"), exit_code)
+    assertEqual(ctx['exit_code'], exit_code)
 
-def stdout_is_a_newline():
-    assertEqual(_get('stdout'), '\n')
+def stdout_is_a_newline(ctx):
+    assertEqual(ctx['stdout'], '\n')
 
-def stdout_is_text(text=None):
-    assertEqual(_get('stdout'), text + '\n')
+def stdout_is_text(ctx, text=None):
+    assertEqual(ctx['stdout'], text + '\n')
 
-def stderr_is_empty():
-    assertEqual(_get('stderr'), '')
+def stderr_is_empty(ctx):
+    assertEqual(ctx['stderr'], '')
-- 
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