Add Java GSDK unit tests and CI workflow

.github/workflows/java-tests.yml

@@ -0,0 +1,28 @@
+name: Java GSDK Tests
+
+on:
+  pull_request:
+    paths:
+      - 'java/**'
+      - '.github/workflows/java-tests.yml'
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '8'
+
+      - name: Build
+        run: cd java && ./gradlew build
+
+      - name: Test
+        run: cd java && ./gradlew :gameserverSDK:test

.gitignore

@@ -320,6 +320,9 @@ gradle-app.setting
 
 ## End Android
 
+# GSDK log output files generated during tests
+GSDK_output_*.txt
+
 # Maven
 /java/gameserverSDK/target/*
 pom.xml.releaseBackup

java/gameserverSDK/src/test/java/com/microsoft/azure/gaming/ConnectedPlayerTest.java

@@ -0,0 +1,32 @@
+package com.microsoft.azure.gaming;
+
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+public class ConnectedPlayerTest {
+
+    @Test
+    public void constructor_setsPlayerId() {
+        ConnectedPlayer player = new ConnectedPlayer("player1");
+        assertEquals("player1", player.getPlayerId());
+    }
+
+    @Test
+    public void setPlayerId_updatesPlayerId() {
+        ConnectedPlayer player = new ConnectedPlayer("player1");
+        player.setPlayerId("player2");
+        assertEquals("player2", player.getPlayerId());
+    }
+
+    @Test
+    public void constructor_handlesEmptyString() {
+        ConnectedPlayer player = new ConnectedPlayer("");
+        assertEquals("", player.getPlayerId());
+    }
+
+    @Test
+    public void constructor_handlesNullPlayerId() {
+        ConnectedPlayer player = new ConnectedPlayer(null);
+        assertNull(player.getPlayerId());
+    }
+}

java/gameserverSDK/src/test/java/com/microsoft/azure/gaming/EnumTest.java

@@ -0,0 +1,55 @@
+package com.microsoft.azure.gaming;
+
+import com.google.gson.Gson;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Tests for GameHostHealth and SessionHostStatus enums.
+ */
+public class EnumTest {
+
+    @Test
+    public void gameHostHealth_hasExpectedValues() {
+        GameHostHealth[] values = GameHostHealth.values();
+        assertEquals(2, values.length);
+        assertEquals(GameHostHealth.Healthy, GameHostHealth.valueOf("Healthy"));
+        assertEquals(GameHostHealth.Unhealthy, GameHostHealth.valueOf("Unhealthy"));
+    }
+
+    @Test
+    public void sessionHostStatus_hasExpectedValues() {
+        SessionHostStatus[] values = SessionHostStatus.values();
+        assertEquals(7, values.length);
+        assertNotNull(SessionHostStatus.valueOf("Invalid"));
+        assertNotNull(SessionHostStatus.valueOf("Initializing"));
+        assertNotNull(SessionHostStatus.valueOf("StandingBy"));
+        assertNotNull(SessionHostStatus.valueOf("Active"));
+        assertNotNull(SessionHostStatus.valueOf("Terminating"));
+        assertNotNull(SessionHostStatus.valueOf("Terminated"));
+        assertNotNull(SessionHostStatus.valueOf("Quarantined"));
+    }
+
+    @Test
+    public void gameHostHealth_gsonSerialization() {
+        Gson gson = new Gson();
+        assertEquals("\"Healthy\"", gson.toJson(GameHostHealth.Healthy));
+        assertEquals("\"Unhealthy\"", gson.toJson(GameHostHealth.Unhealthy));
+    }
+
+    @Test
+    public void gameHostHealth_gsonDeserialization() {
+        Gson gson = new Gson();
+        assertEquals(GameHostHealth.Healthy, gson.fromJson("\"Healthy\"", GameHostHealth.class));
+        assertEquals(GameHostHealth.Unhealthy, gson.fromJson("\"Unhealthy\"", GameHostHealth.class));
+    }
+
+    @Test
+    public void sessionHostStatus_gsonSerialization() {
+        Gson gson = new Gson();
+        assertEquals("\"Initializing\"", gson.toJson(SessionHostStatus.Initializing));
+        assertEquals("\"StandingBy\"", gson.toJson(SessionHostStatus.StandingBy));
+        assertEquals("\"Active\"", gson.toJson(SessionHostStatus.Active));
+    }
+}

java/gameserverSDK/src/test/java/com/microsoft/azure/gaming/GameserverSDKConstantsTest.java

@@ -0,0 +1,62 @@
+package com.microsoft.azure.gaming;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Tests for GameserverSDK constant key values.
+ * These constants are part of the public API and must remain stable.
+ */
+public class GameserverSDKConstantsTest {
+
+    @Test
+    public void heartbeatEndpointKey_hasExpectedValue() {
+        assertEquals("heartbeatEndpoint", GameserverSDK.HEARTBEAT_ENDPOINT_KEY);
+    }
+
+    @Test
+    public void serverIdKey_hasExpectedValue() {
+        assertEquals("serverId", GameserverSDK.SERVER_ID_KEY);
+    }
+
+    @Test
+    public void logFolderKey_hasExpectedValue() {
+        assertEquals("logFolder", GameserverSDK.LOG_FOLDER_KEY);
+    }
+
+    @Test
+    public void certificateFolderKey_hasExpectedValue() {
+        assertEquals("certificateFolder", GameserverSDK.CERTIFICATE_FOLDER_KEY);
+    }
+
+    @Test
+    public void titleIdKey_hasExpectedValue() {
+        assertEquals("titleId", GameserverSDK.TITLE_ID_KEY);
+    }
+
+    @Test
+    public void buildIdKey_hasExpectedValue() {
+        assertEquals("buildId", GameserverSDK.BUILD_ID_KEY);
+    }
+
+    @Test
+    public void regionKey_hasExpectedValue() {
+        assertEquals("region", GameserverSDK.REGION_KEY);
+    }
+
+    @Test
+    public void sessionCookieKey_hasExpectedValue() {
+        assertEquals("sessionCookie", GameserverSDK.SESSION_COOKIE_KEY);
+    }
+
+    @Test
+    public void sessionIdKey_hasExpectedValue() {
+        assertEquals("sessionId", GameserverSDK.SESSION_ID_KEY);
+    }
+
+    @Test
+    public void vmIdKey_hasExpectedValue() {
+        assertEquals("vmId", GameserverSDK.VM_ID_KEY);
+    }
+}