bgneal@971: """Tests for the core.html module."""
bgneal@971: import unittest
bgneal@971: 
bgneal@971: from core.html import ImageCheckError
bgneal@971: from core.html import image_check
bgneal@971: 
bgneal@971: 
bgneal@971: TEST_HTML = """
bgneal@971: <p>Posters and Facebook events are starting to come in...</p>
bgneal@971: <p><img src="{src1}" alt="image"></p>
bgneal@971: <p><img src="{src2}" alt="image"></p>
bgneal@971: """
bgneal@971: 
bgneal@971: 
bgneal@971: class ImageCheckTestCase(unittest.TestCase):
bgneal@971:     def setUp(self):
bgneal@971:         self.allowed_hosts = ['example.com']
bgneal@971: 
bgneal@971:     def test_happy_path(self):
bgneal@971:         url1 = 'https://example.com/1.jpg'
bgneal@971:         url2 = 'https://example.com/2.jpg'
bgneal@971:         html = TEST_HTML.format(src1=url1, src2=url2)
bgneal@971: 
bgneal@971:         result = image_check(html, self.allowed_hosts)
bgneal@971:         self.assertTrue(result)
bgneal@971: 
bgneal@971:     def test_empty_image(self):
bgneal@971:         url1 = 'https://example.com/1.jpg'
bgneal@971:         url2 = ''
bgneal@971:         html = TEST_HTML.format(src1=url1, src2=url2)
bgneal@971: 
bgneal@971:         self.assertRaises(ImageCheckError, image_check, html, self.allowed_hosts)
bgneal@971: 
bgneal@971:     def test_relative_ok(self):
bgneal@971:         url1 = 'https://example.com/1.jpg'
bgneal@971:         url2 = '/some/path/2.jpg'
bgneal@971:         html = TEST_HTML.format(src1=url1, src2=url2)
bgneal@971: 
bgneal@971:         result = image_check(html, self.allowed_hosts)
bgneal@971:         self.assertTrue(result)
bgneal@971: 
bgneal@971:     def test_non_https(self):
bgneal@971:         url1 = 'http://example.com/1.jpg'
bgneal@971:         url2 = 'https://example.com/2.jpg'
bgneal@971:         html = TEST_HTML.format(src1=url1, src2=url2)
bgneal@971: 
bgneal@971:         self.assertRaises(ImageCheckError, image_check, html, self.allowed_hosts)
bgneal@971: 
bgneal@971:     def test_missing_hostname(self):
bgneal@971:         url1 = 'http:///1.jpg'
bgneal@971:         url2 = 'https://example.com/2.jpg'
bgneal@971:         html = TEST_HTML.format(src1=url1, src2=url2)
bgneal@971: 
bgneal@971:         self.assertRaises(ImageCheckError, image_check, html, self.allowed_hosts)
bgneal@971: 
bgneal@971:     def test_hostname_not_allowed1(self):
bgneal@971:         url1 = 'https://xxx.example.com/1.jpg'
bgneal@971:         url2 = 'https://example.com/2.jpg'
bgneal@971:         html = TEST_HTML.format(src1=url1, src2=url2)
bgneal@971: 
bgneal@971:         self.assertRaises(ImageCheckError, image_check, html, self.allowed_hosts)
bgneal@971: 
bgneal@971:     def test_hostname_not_allowed2(self):
bgneal@971:         url1 = 'https://xxx.example.com/1.jpg'
bgneal@971:         url2 = 'https://yyy.example.com/2.jpg'
bgneal@971:         html = TEST_HTML.format(src1=url1, src2=url2)
bgneal@971: 
bgneal@971:         self.assertRaises(ImageCheckError, image_check, html, self.allowed_hosts)
bgneal@985: 
bgneal@985:     def test_empty_string(self):
bgneal@985:         result = image_check('')
bgneal@985:         self.assertTrue(result)
bgneal@985: 
bgneal@985:     def test_whitespace(self):
bgneal@985:         result = image_check('\r\n\r\n')
bgneal@985:         self.assertTrue(result)