How to use the pybuilder.pip_utils.version_satisfies_spec function in pybuilder

def test_version_satisfies_spec(self):
        self.assertEqual(pip_utils.version_satisfies_spec(None, "blah"), True)
        self.assertEqual(pip_utils.version_satisfies_spec("blah", None), False)
        self.assertEqual(pip_utils.version_satisfies_spec(">=1.2.3", "1.2.4"), True)
        self.assertEqual(pip_utils.version_satisfies_spec(">=1.2.3", "1.2.4.dev987"), False)
        self.assertEqual(pip_utils.version_satisfies_spec(">=1.0", "1.1.dev1"), False)
        self.assertEqual(pip_utils.version_satisfies_spec(">=1.0,>=0.0.dev0", "1.1.dev1"), True)

def test_get_package_version(self):
        # Single item
        self.assertTrue(pip_utils.version_satisfies_spec(">=7.0", pip_utils.get_package_version("pip")["pip"]))
        self.assertTrue(
            "this package does not exist" not in pip_utils.get_package_version("this package does not exist"))
        self.assertTrue("blah" not in pip_utils.get_package_version(core.RequirementsFile("blah")))
        self.assertTrue("blah" not in pip_utils.get_package_version(core.Dependency("blah", url="fake url")))

        # Multiple different items
        multiple_different_items = pip_utils.get_package_version(
            ["pip", core.Dependency("wheel"), core.RequirementsFile("blah")])
        self.assertTrue("pip" in multiple_different_items)
        self.assertTrue("wheel" in multiple_different_items)
        self.assertTrue("blah" not in multiple_different_items)

        # Multiple identical items
        multiple_identical_items = pip_utils.get_package_version(
            ["pip", core.Dependency("pip")])
        self.assertTrue("pip" in multiple_identical_items)

def test_version_satisfies_spec(self):
        self.assertEqual(pip_utils.version_satisfies_spec(None, "blah"), True)
        self.assertEqual(pip_utils.version_satisfies_spec("blah", None), False)
        self.assertEqual(pip_utils.version_satisfies_spec(">=1.2.3", "1.2.4"), True)
        self.assertEqual(pip_utils.version_satisfies_spec(">=1.2.3", "1.2.4.dev987"), False)
        self.assertEqual(pip_utils.version_satisfies_spec(">=1.0", "1.1.dev1"), False)
        self.assertEqual(pip_utils.version_satisfies_spec(">=1.0,>=0.0.dev0", "1.1.dev1"), True)

def test_version_satisfies_spec(self):
        self.assertEqual(pip_utils.version_satisfies_spec(None, "blah"), True)
        self.assertEqual(pip_utils.version_satisfies_spec("blah", None), False)
        self.assertEqual(pip_utils.version_satisfies_spec(">=1.2.3", "1.2.4"), True)
        self.assertEqual(pip_utils.version_satisfies_spec(">=1.2.3", "1.2.4.dev987"), False)
        self.assertEqual(pip_utils.version_satisfies_spec(">=1.0", "1.1.dev1"), False)
        self.assertEqual(pip_utils.version_satisfies_spec(">=1.0,>=0.0.dev0", "1.1.dev1"), True)

def _check_plugin_version(plugin_module, plugin_name):
    if hasattr(plugin_module, "pyb_version") and plugin_module.pyb_version:
        if not pip_utils.version_satisfies_spec(plugin_module.pyb_version, PYB_VERSION):
            raise IncompatiblePluginException(plugin_name, plugin_module.pyb_version, PYB_VERSION)

if pip_utils.should_update_package(dependency.version) \
                    and not getattr(dependency, "version_not_a_spec", False):
                # Always add dependency that has a version specifier indicating desire to always update
                logger.debug("Dependency '%s' has a non-exact version specifier and will be included" % dependency)
                dependencies_to_install.append(dependency)
                continue

        dependency_name = dependency.name.lower()
        if dependency_name not in installed_packages:
            # If dependency not installed at all then install it
            logger.debug("Dependency '%s' is not installed and will be included" % dependency)
            dependencies_to_install.append(dependency)
            continue

        if dependency.version \
                and not pip_utils.version_satisfies_spec(dependency.version, installed_packages[dependency_name]):
            # If version is specified and version constraint is not satisfied
            logger.debug("Dependency '%s' is not satisfied by installed dependency version '%s' and will be included" %
                         (dependency, installed_packages[dependency_name]))
            dependencies_to_install.append(dependency)
            continue

        logger.debug("Dependency '%s' is already up-to-date and will be skipped" % dependency)

    return dependencies_to_install, installed_packages, dependency_constraints