test new common.regsub_file() method that replaces sed calls

tests/common.TestCase

@@ -6,6 +6,7 @@
 import inspect
 import optparse
 import os
+import re
 import sys
 import unittest
 
@@ -17,6 +18,7 @@ if localmodule not in sys.path:
     sys.path.insert(0,localmodule)
 
 import fdroidserver.common
+import fdroidserver.metadata
 
 class CommonTest(unittest.TestCase):
     '''fdroidserver/common.py'''
@@ -95,6 +97,48 @@ class CommonTest(unittest.TestCase):
             self.assertFalse(fdroidserver.common.is_valid_package_name(name),
                     "{0} should not be a valid package name".format(name))
 
+    def test_prepare_sources(self):
+        testint = 99999999
+        teststr = 'FAKE_STR_FOR_TESTING'
+        testdir = os.path.dirname(__file__)
+
+        config = dict()
+        config['sdk_path'] = os.getenv('ANDROID_HOME')
+        config['build_tools'] = 'FAKE_BUILD_TOOLS_VERSION'
+        fdroidserver.common.config = config
+        app = dict()
+        app['id'] = 'org.fdroid.froid'
+        build = dict(fdroidserver.metadata.flag_defaults)
+        build['commit'] = 'master'
+        build['forceversion'] = True
+        build['forcevercode'] = True
+        build['gradle'] = ['yes']
+        build['ndk_path'] = os.getenv('ANDROID_NDK_HOME')
+        build['target'] = 'android-' + str(testint)
+        build['type'] = 'gradle'
+        build['version'] = teststr
+        build['vercode'] = testint
+
+        class FakeVcs():
+            # no need to change to the correct commit here
+            def gotorevision(self, rev, refresh=True):
+                pass
+
+            # no srclib info needed, but it could be added...
+            def getsrclib(self):
+                return None
+
+        fdroidserver.common.prepare_source(FakeVcs(), app, build, testdir, testdir, testdir)
+
+        filedata = open(os.path.join(testdir, 'build.gradle')).read()
+        self.assertIsNotNone(re.search("\s+compileSdkVersion %s\s+" % testint, filedata))
+
+        filedata = open(os.path.join(testdir, 'AndroidManifest.xml')).read()
+        self.assertIsNone(re.search('android:debuggable', filedata))
+        self.assertIsNotNone(re.search('android:versionName="%s"' % build['version'], filedata))
+        self.assertIsNotNone(re.search('android:versionCode="%s"' % build['vercode'], filedata))
+
+
 if __name__ == "__main__":
     parser = optparse.OptionParser()
     parser.add_option("-v", "--verbose", action="store_true", default=False,