Added a Unit Test for mc version detection (#4560)

* Added a Unit Test for mc version detection

* Merge upstream and update server software string

src/test/java/com/gmail/nossr50/util/platform/MinecraftGameVersionTest.java

@@ -1,13 +1,25 @@
 package com.gmail.nossr50.util.platform;
 
+import java.util.logging.Logger;
+import java.util.stream.Stream;
+
+import org.bukkit.Bukkit;
+import org.jetbrains.annotations.NotNull;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+import org.mockito.MockedStatic;
+import org.mockito.Mockito;
+
+import com.gmail.nossr50.mcMMO;
 
 import static org.junit.jupiter.api.Assertions.*;
 
 class MinecraftGameVersionTest {
 
     @Test
-    public void testAtLeast() {
+    void testAtLeast() {
         // TODO: Remove redundant tests
         MinecraftGameVersion oneEightEight = new MinecraftGameVersion(1, 8, 8);
         MinecraftGameVersion oneSixteenFive = new MinecraftGameVersion(1, 16, 5);
@@ -34,7 +46,6 @@ class MinecraftGameVersionTest {
         assertTrue(majorVersionTest.isAtLeast(2, 0, 0));
         assertTrue(majorVersionTest.isAtLeast(1, 0, 0));
 
-
         // Test minor version number
         MinecraftGameVersion minorVersionTest = new MinecraftGameVersion(0, 3, 0);
 
@@ -62,4 +73,59 @@ class MinecraftGameVersionTest {
         assertTrue(patchVersionTest.isAtLeast(0, 0, 4));
         assertTrue(patchVersionTest.isAtLeast(0, 0, 5));
     }
+
+    @MethodSource("getGameVersions")
+    @ParameterizedTest(name = "Verify that \"{0}\" is recognized as {1}.{2}.{3}")
+    void testVersionDetection(String gameVersion, int major, int minor, int patch) {
+        /*
+         * The platform manager checks for the type of server software,
+         * we will just simulate some "Spigot" version here, so that the test can
+         * continue successfully.
+         */
+        String serverSoftwareVersion = "git-Spigot-12345-abcdef (MC: " + major + '.' + minor + '.' + patch + ')';
+
+        // Set up a mock plugin for logging.
+        mcMMO plugin = Mockito.mock(mcMMO.class);
+        Mockito.when(plugin.getName()).thenReturn("mcMMO");
+        Mockito.when(plugin.getLogger()).thenReturn(Logger.getLogger("mcMMO"));
+        mcMMO.p = plugin;
+
+        try (MockedStatic<Bukkit> bukkit = Mockito.mockStatic(Bukkit.class)) {
+            // Inject our own Bukkit versions
+            bukkit.when(() -> Bukkit.getVersion()).thenReturn(serverSoftwareVersion);
+            bukkit.when(() -> Bukkit.getBukkitVersion()).thenReturn(gameVersion);
+
+            PlatformManager manager = new PlatformManager();
+            Platform platform = manager.getPlatform();
+            MinecraftGameVersion minecraftVersion = platform.getGameVersion();
+
+            assertEquals(major, minecraftVersion.getMajorVersion().asInt());
+            assertEquals(minor, minecraftVersion.getMinorVersion().asInt());
+            assertEquals(patch, minecraftVersion.getPatchVersion().asInt());
+        } finally {
+            mcMMO.p = null;
+        }
+    }
+
+    private static @NotNull Stream<Arguments> getGameVersions() {
+        /*
+         * These samples were taken directly from the historical
+         * data of CraftBukkit's pom.xml file:
+         * https://hub.spigotmc.org/stash/projects/SPIGOT/repos/craftbukkit/browse/pom.xml
+         * 
+         * We should be safe to assume that forks follow these conventions and do not mess
+         * with this version number (Spigot, Paper and Tuinity do at least).
+         */
+        return Stream.of(
+            Arguments.of("1.13.2-R0.1-SNAPSHOT", 1, 13, 2),
+            Arguments.of("1.13-R0.2-SNAPSHOT", 1, 13, 0),
+            Arguments.of("1.13.2-R0.1-SNAPSHOT", 1, 13, 2),
+            Arguments.of("1.13-pre7-R0.1-SNAPSHOT", 1, 13, 0),
+            Arguments.of("1.14-pre5-SNAPSHOT", 1, 14, 0),
+            Arguments.of("1.15-R0.1-SNAPSHOT", 1, 15, 0),
+            Arguments.of("1.16.5-R0.1-SNAPSHOT", 1, 16, 5),
+            Arguments.of("1.17-R0.1-SNAPSHOT", 1, 17, 0)
+        );
+    }
+
 }