Added support for purpur serverjar updating

- Added support for purpur updating and checking #43
- Removed get_installed_mc_version function which isn't needed anymore

src/tests/test_serverjar_paper_velocity_waterfall.py

@@ -3,14 +3,6 @@ import unittest
 from src.serverjar import serverjar_paper_velocity_waterfall
 
 class TestCases(unittest.TestCase):
-    def test_get_installed_mc_version(self):
-        # paper-1.19-40.jar -> 1.19
-        serverjar_file_name = "paper-1.19-40.jar"
-        mc_version = "1.19"
-        result  = serverjar_paper_velocity_waterfall.get_installed_mc_version(serverjar_file_name)
-        self.assertEqual(result, mc_version)
-
-
     def test_get_installed_serverjar_version(self):
         # paper-1.19-40.jar -> 40
         serverjar_file_name = "paper-1.19-40.jar"

src/tests/test_serverjar_purpur.py

@@ -0,0 +1,40 @@
+import unittest
+
+from src.serverjar import serverjar_purpur
+from src.serverjar import serverjar_paper_velocity_waterfall
+
+class TestCases(unittest.TestCase):
+    def test_get_installed_serverjar_version(self):
+        # purpur-1.19-40.jar -> 40
+        serverjar_file_name = "purpur-1.19-40.jar"
+        serverjar_version = "40"
+        result = serverjar_paper_velocity_waterfall.get_installed_serverjar_version(serverjar_file_name)
+        self.assertEqual(result, serverjar_version)
+
+
+    def test_get_version_group(self):
+        # 1.18.2 -> 1.18
+        mc_version = "1.18.2"
+        mc_version_group = "1.18.2"
+        result = serverjar_paper_velocity_waterfall.get_version_group(mc_version)
+        self.assertEqual(result, mc_version_group)
+
+
+    def test_find_latest_available_version(self):
+        # Get latest available purpur version for 1.15.2 which should be '606'
+        file_server_jar_full_name = "purpur-1.15.2-40.jar"
+        version_group = "1.15.2"
+        result = serverjar_purpur.find_latest_available_version(version_group)
+        self.assertEqual(result, str(606))
+
+
+    def test_get_versions_behind(self):
+        # 161 - 157 = 4
+        serverjar_version = 157
+        latest_version = 161
+        result = serverjar_paper_velocity_waterfall.get_versions_behind(serverjar_version, latest_version)
+        self.assertEqual(result, 4)
+
+
+if __name__ == "__main__":
+    unittest.main()