Fix text argument

escpos/cli.py

@@ -141,8 +141,8 @@ ESCPOS_COMMANDS = [
         },
         'arguments': [
             {
-                'option_strings': ('--text',),
+                'option_strings': ('--txt',),
-                'help': 'Text to print as a qr code',
+                'help': 'Plain text to print',
                 'required': True,
             }
         ],

setup.py

@@ -78,6 +78,6 @@ setup(
     setup_requires=[
         'setuptools_scm',
     ],
-    tests_require=['tox', 'nose'],
+    tests_require=['tox', 'nose', 'scripttest'],
     cmdclass={'test': Tox},
 )

test/test_cli.py

@@ -0,0 +1,99 @@
+"""Test for the CLI
+
+"""
+
+import os
+import sys
+from scripttest import TestFileEnvironment
+from nose.tools import assert_equals
+
+TEST_DIR = os.path.abspath('test/test-cli-output')
+
+DEVFILE_NAME = 'testfile'
+
+DEVFILE = os.path.join(TEST_DIR, DEVFILE_NAME)
+CONFIGFILE = 'testconfig.yaml'
+CONFIG_YAML = '''
+---
+
+printer:
+    type: file
+    devfile: {testfile}
+'''.format(
+    testfile=DEVFILE,
+)
+
+class TestCLI:
+
+    @classmethod
+    def setup_class(cls):
+        """ Create a config file to read from """
+        with open(CONFIGFILE, 'w') as config:
+            config.write(CONFIG_YAML)
+
+    @classmethod
+    def teardown_class(cls):
+        """ Remove config file """
+        os.remove(CONFIGFILE)
+
+    def setup(self):
+        """ Create a file to print to and set up env"""
+        self.env = TestFileEnvironment(
+            base_path=TEST_DIR,
+            cwd=os.getcwd(),
+        )
+
+        self.default_args = (
+            sys.executable,
+            '-mescpos.cli',
+            '-c',
+            CONFIGFILE,
+        )
+
+        fhandle = open(DEVFILE, 'a')
+        try:
+            os.utime(DEVFILE, None)
+        finally:
+            fhandle.close()
+
+    def teardown(self):
+        """ Destroy printer file """
+        os.remove(DEVFILE)
+
+    def test_cli_help(self):
+        """ Test getting help from cli """
+        result = self.env.run(sys.executable, '-mescpos.cli', '-h')
+        assert not result.stderr
+        assert 'usage' in result.stdout
+
+    def test_cli_text(self):
+        """ Make sure text returns what we sent it """
+        test_text = 'this is some text'
+        result = self.env.run(
+            *(self.default_args + (
+                'text',
+                '--txt',
+                test_text,
+            ))
+        )
+        assert not result.stderr
+        assert DEVFILE_NAME in result.files_updated.keys()
+        assert_equals(
+            result.files_updated[DEVFILE_NAME].bytes,
+            test_text
+        )
+
+    def test_cli_text_inavlid_args(self):
+        """ Test a failure to send valid arguments """
+        result = self.env.run(
+            *(self.default_args + (
+                'text',
+                '--invalid-param',
+                'some data'
+            )),
+            expect_error=True,
+            expect_stderr=True
+        )
+        assert_equals(result.returncode, 2)
+        assert 'error:' in result.stderr
+        assert not result.files_updated

tox.ini

@@ -4,4 +4,5 @@ envlist = py27, py34, py35
 [testenv]
 deps = nose
        coverage
+       scripttest
 commands = nosetests --with-coverage --cover-erase --cover-branches