From 0394f0d9238f8ffcc0c082dbdcf08fc0e4f0adde Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Sun, 14 Aug 2011 14:42:29 +0100
Subject: Rewrite to not use JSON but individual files.

JSON markup is not fun enough to write by hand.
---
 cmdtest | 75 ++++++++++++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 49 insertions(+), 26 deletions(-)

(limited to 'cmdtest')

diff --git a/cmdtest b/cmdtest
index f2fdfd9..c55b162 100755
--- a/cmdtest
+++ b/cmdtest
@@ -19,10 +19,15 @@ __version__ = '0.0'
 
 
 import cliapp
-import json
 import logging
 import os
 import tempfile
+import unittest
+
+
+class TestCase(object):
+
+    pass
 
 
 class CommandTester(cliapp.Application):
@@ -34,19 +39,26 @@ class CommandTester(cliapp.Application):
 
     def process_args(self, args):
         self.settings.require('command')
-        tests = self.load_tests(args)
         self.setup_tempdir()
+        tests = self.load_tests(args)
         for test in tests:
             self.run_test(test)
         
-    def load_tests(self, filenames):
+    def load_tests(self, dirnames):
         tests = []
-        for filename in filenames:
-            with open(filename) as f:
-                obj = json.load(f)
-                tests.extend(obj)
+        for dirname in dirnames:
+            tests.append(self.load_test(dirname))
         return tests
 
+    def load_test(self, dirname):
+        t = TestCase()
+        t.name = os.path.basename(dirname)
+        t.setup_cmds = self.lines(os.path.join(dirname, 'setup'))
+        t.command = self.settings['command']
+        t.args = self.lines(os.path.join(dirname, 'args'))
+        t.stdout = self.cat(os.path.join(dirname, 'stdout'))
+        return t
+
     def setup_tempdir(self):
         self.tempdir = tempfile.mkdtemp()
         logging.info('Temporary directory %s' % self.tempdir)
@@ -55,29 +67,36 @@ class CommandTester(cliapp.Application):
         shutil.rmtree(self.tempdir)
         logging.info('Removed temporary directory %s' % self.tempdir)
 
+    def cat(self, filename):
+        if os.path.exists(filename):
+            with open(filename) as f:
+                return f.read()
+        else:
+            return ''
+
+    def lines(self, filename):
+        return self.cat(filename).splitlines()
+
     def run_test(self, test):
-        logging.info('Running test %s' % test['test'])
-        for setup_cmd in test['setup']:
-            self.runcmd(self.expand(setup_cmd))
-        argv = [self.settings['command']] + self.expand(test['args'])
+        logging.info('Test case: %s' % test.name)
+
+        logging.debug('Running setup commands')
+        for setup_cmd in test.setup_cmds:
+            expanded = self.expand([setup_cmd])[0]
+            self.runcmd([expanded], shell=True)
+
+        logging.debug('Running tested command')
+        argv = [self.settings['command']] + self.expand(test.args)
         out = self.runcmd(argv)
-        stdout_name = test['test'] + '.stdout'
-        if os.path.exists(stdout_name):
-            with open(stdout_name) as f:
-                stdout = f.read()
-        else:
-            stdout = ''
-            stdout_name = os.path.join(self.tempdir, 'stdout')
-            with open(stdout_name, 'w') as f:
-                f.write(stdout)
-        if out != stdout:
-            out_name = os.path.join(self.tempdir, 'out')
-            with open(out_name, 'w') as f:
-                f.write(out)
+
+        if out != test.stdout:
+            actual = self.write_file('actual_stdout', out)
+            expected = self.write_file('expected_stdout', test.stdout)
             exit, diff, err = self.runcmd_unchecked(['diff', '-u', 
-                                                     stdout_name, out_name])
+                                                     expected, actual])
             raise cliapp.AppException('%s failed: stdout difference:\n%s' %
-                                       (test['test'], diff))
+                                       (test.name, diff))
+        logging.info('Test %s passed' % test.name)
 
     def expand(self, strings):
         variables = {
@@ -85,6 +104,10 @@ class CommandTester(cliapp.Application):
         }
         return [s % variables for s in strings]
 
+    def write_file(self, basename, content):
+        with open(os.path.join(self.tempdir, basename), 'w'):
+            f.write(content)
+
 
 if __name__ == '__main__':
     CommandTester(version=__version__).run()
-- 
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