Refactor TestCase files into python modules

Convert all TestCase files into standard python modules to be run and
discovered by unittest.

tests/test_api.py

@@ -0,0 +1,103 @@
+#!/usr/bin/env python3
+
+import os
+import shutil
+import unittest
+from pathlib import Path
+from unittest import mock
+
+import fdroidserver
+from fdroidserver import common, signindex
+from .testcommon import GP_FINGERPRINT, mkdtemp
+
+
+basedir = Path(__file__).parent
+
+
+class ApiTest(unittest.TestCase):
+    """Test the public API in the base "fdroidserver" module
+
+    This is mostly a smokecheck to make sure the public API as
+    declared in fdroidserver/__init__.py is working.  The functions
+    are all implemented in other modules, with their own tests.
+
+    """
+
+    def setUp(self):
+        os.chdir(basedir)
+
+        self._td = mkdtemp()
+        self.testdir = self._td.name
+
+        common.config = None
+        config = common.read_config()
+        config['jarsigner'] = common.find_sdk_tools_cmd('jarsigner')
+        common.config = config
+        signindex.config = config
+
+    def tearDown(self):
+        self._td.cleanup()
+
+    def test_download_repo_index_no_fingerprint(self):
+        with self.assertRaises(fdroidserver.VerificationException):
+            fdroidserver.download_repo_index("http://example.org")
+
+    @mock.patch('fdroidserver.net.http_get')
+    def test_download_repo_index_url_parsing(self, mock_http_get):
+        """Test whether it is trying to download the right file
+
+        This passes the URL back via the etag return value just as a
+        hack to check which URL was actually attempted.
+
+        """
+        mock_http_get.side_effect = lambda url, etag, timeout: (None, url)
+        repo_url = 'https://example.org/fdroid/repo'
+        index_url = 'https://example.org/fdroid/repo/index-v1.jar'
+        for url in (repo_url, index_url):
+            _ignored, etag_set_to_url = fdroidserver.download_repo_index(
+                url, verify_fingerprint=False
+            )
+            self.assertEqual(index_url, etag_set_to_url)
+
+    @mock.patch('fdroidserver.net.http_get')
+    def test_download_repo_index_v1_url_parsing(self, mock_http_get):
+        """Test whether it is trying to download the right file
+
+        This passes the URL back via the etag return value just as a
+        hack to check which URL was actually attempted.
+
+        """
+        mock_http_get.side_effect = lambda url, etag, timeout: (None, url)
+        repo_url = 'https://example.org/fdroid/repo'
+        index_url = 'https://example.org/fdroid/repo/index-v1.jar'
+        for url in (repo_url, index_url):
+            _ignored, etag_set_to_url = fdroidserver.download_repo_index_v1(
+                url, verify_fingerprint=False
+            )
+            self.assertEqual(index_url, etag_set_to_url)
+
+    @mock.patch('fdroidserver.net.download_using_mirrors')
+    def test_download_repo_index_v2(self, mock_download_using_mirrors):
+        """Basically a copy of IndexTest.test_download_repo_index_v2"""
+        mock_download_using_mirrors.side_effect = lambda mirrors: os.path.join(
+            self.testdir, 'repo', os.path.basename(mirrors[0]['url'])
+        )
+        os.chdir(self.testdir)
+        signindex.config['keystore'] = os.path.join(basedir, 'keystore.jks')
+        os.mkdir('repo')
+        shutil.copy(basedir / 'repo' / 'entry.json', 'repo')
+        shutil.copy(basedir / 'repo' / 'index-v2.json', 'repo')
+        signindex.sign_index('repo', 'entry.json')
+        repo_url = 'https://fake.url/fdroid/repo'
+        entry_url = 'https://fake.url/fdroid/repo/entry.jar'
+        index_url = 'https://fake.url/fdroid/repo/index-v2.json'
+        fingerprint_url = 'https://fake.url/fdroid/repo?fingerprint=' + GP_FINGERPRINT
+        slash_url = 'https://fake.url/fdroid/repo//?fingerprint=' + GP_FINGERPRINT
+        for url in (repo_url, entry_url, index_url, fingerprint_url, slash_url):
+            data, _ignored = fdroidserver.download_repo_index_v2(
+                url, verify_fingerprint=False
+            )
+            self.assertEqual(['repo', 'packages'], list(data))
+            self.assertEqual(
+                'My First F-Droid Repo Demo', data['repo']['name']['en-US']
+            )