Added initial version of test script

Author: kbknapp

claptests/run_tests.py

@@ -0,0 +1,73 @@
+#!/usr/bin/env python
+import sys
+import subprocess
+
+failed = False
+
+_bin = './target/release/claptests'
+cmds = {'help short:   ': ['{} -h | wc -l'.format(_bin), ['21']],
+		'help long:    ': ['{} --help | wc -l'.format(_bin), ['21']],
+		'help subcmd:  ': ['{} help | wc -l'.format(_bin), ['21']],
+		'flag short:   ': ['{} -f'.format(_bin), ['flag present 1 times',
+												  'option NOT present',
+												  'positional NOT present', 
+												 'subcmd NOT present']],
+		'flag long:    ': ['{} --flag'.format(_bin), ['flag present 1 times',
+													  'option NOT present', 
+													  'positional NOT present', 
+													  'subcmd NOT present']],
+		'positional:   ': ['{} some'.format(_bin), ['flag NOT present',
+												    'option NOT present',
+												    'positional present with value: some',
+												    'subcmd NOT present']],
+		'option short: ': ['{} -o some'.format(_bin), ['flag NOT present',
+												       'option present with value: some',
+												       'An option: some',
+												       'positional NOT present',
+												       'subcmd NOT present']],
+		'option long:  ': ['{} --option some'.format(_bin), ['flag NOT present',
+												             'option present with value: some',
+       												         'An option: some',
+												             'positional NOT present',
+												             'subcmd NOT present']],
+		'option long=: ': ['{} --option=some'.format(_bin), ['flag NOT present',
+												             'option present with value: some',
+       												         'An option: some',
+												             'positional NOT present',
+												             'subcmd NOT present']]}
+
+def pass_fail(name, check, good):
+	global failed
+	print(name, end='')
+	if len(good) == 1:
+		if check == good:
+			print('Pass')
+			return
+		failed = True
+		print('Fail')
+		return
+	_failed = False
+	for i, line in enumerate(check):
+		if line == good[i]:
+			continue
+		_failed = True
+	if _failed:
+		failed = True
+		print('Fail')
+		return
+	print('Pass')
+
+
+def main():
+	for cmd, cmd_v in cmds.items():
+		with subprocess.Popen(cmd_v[0], shell=True, stdout=subprocess.PIPE, universal_newlines=True) as proc:
+			out = proc.communicate()[0].strip()
+			out = out.split('\n')
+			pass_fail(cmd, out, cmd_v[1])
+	if failed:
+		print('One or more tests failed')
+		return 1
+	print('All tests passed!')
+
+if __name__ == '__main__':
+	sys.exit(main())