🪗 get auto NDK installs working in vm builds

tests/test_install_ndk.py

@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+
+import os
+import unittest
+
+from pathlib import Path
+from unittest import mock
+
+from fdroidserver import common, metadata, install_ndk
+from .shared_test_code import mkdtemp, APPID, VERCODE, APPID_VERCODE
+
+NDK_RELEASE = 'r24'
+NDK_REVISION = '24.0.8215888'
+
+
+class InstallNdkTest(unittest.TestCase):
+    basedir = Path(__file__).resolve().parent
+
+    def setUp(self):
+        self._td = mkdtemp()
+        self.testdir = self._td.name
+        os.chdir(self.testdir)
+        common.config = {'ndk_paths': {}, 'sdk_path': self.testdir}
+
+    def tearDown(self):
+        self._td.cleanup()
+        common.config = None
+
+
+def mock_sdkmanager_install(to_install, android_home=None):
+    path = f'{android_home}/{to_install.replace(";", "/")}'
+    ndk_dir = Path(path)
+    ndk_dir.mkdir(parents=True)
+    (ndk_dir / 'source.properties').write_text(f'Pkg.Revision = {NDK_REVISION}\n')
+
+
+@mock.patch('sdkmanager.build_package_list', lambda use_net: None)
+class InstallNdk_wrapper(InstallNdkTest):
+    @mock.patch('sdkmanager.install')
+    def test_with_ndk(self, sdkmanager_install):
+        sdkmanager_install.side_effect = mock_sdkmanager_install
+        build = metadata.Build({'versionCode': VERCODE, 'ndk': NDK_RELEASE})
+        install_ndk.install_ndk_wrapper(build)
+        sdkmanager_install.assert_called_once()
+
+    @mock.patch('fdroidserver.common.auto_install_ndk')
+    def test_without_ndk(self, auto_install_ndk):
+        build = metadata.Build({'versionCode': VERCODE})
+        install_ndk.install_ndk_wrapper(build)
+        auto_install_ndk.assert_not_called()
+
+
+@mock.patch('sys.argv', ['fdroid ndk', APPID_VERCODE])
+@mock.patch('sdkmanager.build_package_list', lambda use_net: None)
+@mock.patch('sdkmanager.install')
+class InstallNdk_main(InstallNdkTest):
+    def setUp(self):
+        super().setUp()
+        metadatapath = Path(common.get_metadatapath(APPID))
+        metadatapath.parent.mkdir()
+        metadatapath.write_text(
+            f'Builds:\n - versionCode: {VERCODE}\n   ndk: {NDK_RELEASE}\n'
+        )
+
+    def test_ndk_main(self, sdkmanager_install):
+        sdkmanager_install.side_effect = mock_sdkmanager_install
+        install_ndk.main()
+        sdkmanager_install.assert_called_once()