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# Copyright (C) 2019 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""Unittests for the hooks.py module."""

import unittest

import hooks


class RepoHookShebang(unittest.TestCase):
    """Check shebang parsing in RepoHook."""

    def test_no_shebang(self):
        """Lines w/out shebangs should be rejected."""
        DATA = ("", "#\n# foo\n", "# Bad shebang in script\n#!/foo\n")
        for data in DATA:
            self.assertIsNone(hooks.RepoHook._ExtractInterpFromShebang(data))

    def test_direct_interp(self):
        """Lines whose shebang points directly to the interpreter."""
        DATA = (
            ("#!/foo", "/foo"),
            ("#! /foo", "/foo"),
            ("#!/bin/foo ", "/bin/foo"),
            ("#! /usr/foo ", "/usr/foo"),
            ("#! /usr/foo -args", "/usr/foo"),
        )
        for shebang, interp in DATA:
            self.assertEqual(
                hooks.RepoHook._ExtractInterpFromShebang(shebang), interp
            )

    def test_env_interp(self):
        """Lines whose shebang launches through `env`."""
        DATA = (
            ("#!/usr/bin/env foo", "foo"),
            ("#!/bin/env foo", "foo"),
            ("#! /bin/env /bin/foo ", "/bin/foo"),
        )
        for shebang, interp in DATA:
            self.assertEqual(
                hooks.RepoHook._ExtractInterpFromShebang(shebang), interp
            )