Added unit tests for ConvertCommand class (ref #31).

nigel.stanger / process_podcast

Browse code Added unit tests for ConvertCommand class (ref #31). master
1 parent 9f6bbcb commit 7e3bdfba3a8c6981774f09d700584bdf17b2fc19 Nigel Stanger authored on 18 Sep 2018

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Ignore Space Show notes View test_convert_command.py 0 → 100644
import shutil import unittest from shell_command import ( ShellCommand, ConvertCommand ) class TestConvertCommand(unittest.TestCase): """Test the ConvertCommand class. """ # Local ConvertCommand. command = None # Path to convert executable. expected_executable = shutil.which("convert") # Expected base options. expected_base_options = [ "-size", "2048x1536", "-density", "600", "xc:dimgrey", "null:", "(" ] # Expected input options. expected_input_options = [ "foo", "-resize", "2048x1536", "-background", "white", "-alpha", "remove", "-type", "truecolor", "-define", "colorspace:auto-grayscale=off", ] # Expected output options. expected_output_options = [ ")", "-gravity", "center", "-layers", "composite", "-flatten", "bar", ] def setUp(self): """Initialisation. Make sure the input and output options are explicitly set otherwise they hang around from previous tests. """ self.command = ConvertCommand( input_options=["foo"], output_options=["bar"]) def tearDown(self): """Cleanup. """ self.command = None def test_base_options(self): """Test that base options match expected. """ self.assertEqual( self.command._base_options, self.expected_base_options) def test_input_options(self): """Test that input options match expected. """ self.assertEqual( self.command.input_options, self.expected_input_options) def test_output_options(self): """Test that output options match expected. """ self.assertEqual( self.command.output_options, self.expected_output_options) def test_executable_string(self): """Test that executable path matches expected. """ self.assertEqual(self.command.executable_string(quote=False), self.expected_executable) # Note: don't explicitly specify quoted value, because # the executable path will vary across different systems. self.assertEqual(self.command.executable_string(quote=True), ShellCommand.shellquote(self.expected_executable)) def test_argument_string(self): """Test that the argument string matches expected. """ args = (self.expected_base_options + self.expected_input_options + self.expected_output_options) self.assertEqual(self.command.argument_string(quote=False), " ".join(args)) self.assertEqual(self.command.argument_string(quote=True), " ".join([ShellCommand.shellquote(a) for a in args])) def test_argument_list(self): """Test that the argument list matches expected. """ self.assertEqual(self.command.argument_list(), self.expected_base_options + self.expected_input_options + self.expected_output_options) def test_command_string(self): """Test that the command string matches expected. """ args = (self.expected_base_options + self.expected_input_options + self.expected_output_options) expected_cmd_unquoted = ( "{exe} {arg}".format(exe=self.expected_executable, arg=" ".join(args)) ) expected_cmd_quoted = ( '{exe} {arg}'.format( exe=ShellCommand.shellquote(self.expected_executable), arg=" ".join([ShellCommand.shellquote(a) for a in args])) ) self.assertEqual(self.command.command_string(quote=False), expected_cmd_unquoted) self.assertEqual(self.command.command_string(quote=True), expected_cmd_quoted)

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test_convert_command.py 0 → 100644

import shutil
import unittest

from shell_command import (
    ShellCommand, ConvertCommand
)

class TestConvertCommand(unittest.TestCase):
    """Test the ConvertCommand class.
    """

# Local ConvertCommand.
    command = None

# Path to convert executable.
    expected_executable = shutil.which("convert")

# Expected base options.
    expected_base_options = [
        "-size", "2048x1536",
        "-density", "600",
        "xc:dimgrey", "null:",
        "("
    ]

# Expected input options.
    expected_input_options = [
        "foo",
        "-resize", "2048x1536",
        "-background", "white", 
        "-alpha", "remove",
        "-type", "truecolor",
        "-define", "colorspace:auto-grayscale=off",
    ]

# Expected output options.
    expected_output_options = [
        ")",
        "-gravity", "center",
        "-layers", "composite",
        "-flatten",
        "bar",
    ]

def setUp(self):
        """Initialisation. Make sure the input and output options are
        explicitly set otherwise they hang around from previous tests.
        """
        self.command = ConvertCommand(
            input_options=["foo"], output_options=["bar"])

def tearDown(self):
        """Cleanup.
        """
        self.command = None
    
    def test_base_options(self):
        """Test that base options match expected.
        """
        self.assertEqual(
            self.command._base_options, self.expected_base_options)
    
    def test_input_options(self):
        """Test that input options match expected.
        """
        self.assertEqual(
            self.command.input_options, self.expected_input_options)
    
    def test_output_options(self):
        """Test that output options match expected.
        """
        self.assertEqual(
            self.command.output_options, self.expected_output_options)
    
    def test_executable_string(self):
        """Test that executable path matches expected.
        """
        self.assertEqual(self.command.executable_string(quote=False),
            self.expected_executable)
        # Note: don't explicitly specify quoted value, because
        # the executable path will vary across different systems.
        self.assertEqual(self.command.executable_string(quote=True),
            ShellCommand.shellquote(self.expected_executable))

def test_argument_string(self):
        """Test that the argument string matches expected.
        """
        args = (self.expected_base_options + self.expected_input_options +
            self.expected_output_options)
        self.assertEqual(self.command.argument_string(quote=False),
            " ".join(args))
        self.assertEqual(self.command.argument_string(quote=True),
            " ".join([ShellCommand.shellquote(a) for a in args]))

def test_argument_list(self):
        """Test that the argument list matches expected.
        """
        self.assertEqual(self.command.argument_list(),
            self.expected_base_options + self.expected_input_options +
            self.expected_output_options)

def test_command_string(self):
        """Test that the command string matches expected.
        """
        args = (self.expected_base_options + self.expected_input_options +
            self.expected_output_options)
        expected_cmd_unquoted = (
            "{exe} {arg}".format(exe=self.expected_executable,
                arg=" ".join(args))
        )
        expected_cmd_quoted = (
            '{exe} {arg}'.format(
                exe=ShellCommand.shellquote(self.expected_executable),
                arg=" ".join([ShellCommand.shellquote(a) for a in args]))
        )
        self.assertEqual(self.command.command_string(quote=False),
            expected_cmd_unquoted)
        self.assertEqual(self.command.command_string(quote=True),
            expected_cmd_quoted)

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