马宇豪
2024-07-16 f591c27b57e2418c9495bc02ae8cfff84d35bc18
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#!/usr/bin/env python3
 
# Copyright (c) 2012 Google Inc. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
 
"""Unit tests for the common.py file."""
 
import gyp.common
import unittest
import sys
 
 
class TestTopologicallySorted(unittest.TestCase):
    def test_Valid(self):
        """Test that sorting works on a valid graph with one possible order."""
        graph = {
            "a": ["b", "c"],
            "b": [],
            "c": ["d"],
            "d": ["b"],
        }
 
        def GetEdge(node):
            return tuple(graph[node])
 
        self.assertEqual(
            gyp.common.TopologicallySorted(graph.keys(), GetEdge), ["a", "c", "d", "b"]
        )
 
    def test_Cycle(self):
        """Test that an exception is thrown on a cyclic graph."""
        graph = {
            "a": ["b"],
            "b": ["c"],
            "c": ["d"],
            "d": ["a"],
        }
 
        def GetEdge(node):
            return tuple(graph[node])
 
        self.assertRaises(
            gyp.common.CycleError, gyp.common.TopologicallySorted, graph.keys(), GetEdge
        )
 
 
class TestGetFlavor(unittest.TestCase):
    """Test that gyp.common.GetFlavor works as intended"""
 
    original_platform = ""
 
    def setUp(self):
        self.original_platform = sys.platform
 
    def tearDown(self):
        sys.platform = self.original_platform
 
    def assertFlavor(self, expected, argument, param):
        sys.platform = argument
        self.assertEqual(expected, gyp.common.GetFlavor(param))
 
    def test_platform_default(self):
        self.assertFlavor("freebsd", "freebsd9", {})
        self.assertFlavor("freebsd", "freebsd10", {})
        self.assertFlavor("openbsd", "openbsd5", {})
        self.assertFlavor("solaris", "sunos5", {})
        self.assertFlavor("solaris", "sunos", {})
        self.assertFlavor("linux", "linux2", {})
        self.assertFlavor("linux", "linux3", {})
        self.assertFlavor("linux", "linux", {})
 
    def test_param(self):
        self.assertFlavor("foobar", "linux2", {"flavor": "foobar"})
 
 
if __name__ == "__main__":
    unittest.main()