opponent info: Add simple interaction tests

runelite-client/src/main/java/net/runelite/client/plugins/opponentinfo/OpponentInfoPlugin.java

@@ -25,6 +25,7 @@
  */
 package net.runelite.client.plugins.opponentinfo;
 
+import com.google.common.annotations.VisibleForTesting;
 import com.google.inject.Provides;
 import java.time.Duration;
 import java.time.Instant;
@@ -80,6 +81,8 @@ public class OpponentInfoPlugin extends Plugin
 	@Getter(AccessLevel.PACKAGE)
 	private Actor lastOpponent;
 
+	@Getter(AccessLevel.PACKAGE)
+	@VisibleForTesting
 	private Instant lastTime;
 
 	@Provides

runelite-client/src/test/java/net/runelite/client/plugins/opponentinfo/OpponentInfoPluginTest.java

@@ -0,0 +1,180 @@
+/*
+ * Copyright (c) 2021, Jordan Atwood <jordan.atwood423@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.opponentinfo;
+
+import com.google.inject.Guice;
+import com.google.inject.Inject;
+import com.google.inject.testing.fieldbinder.Bind;
+import com.google.inject.testing.fieldbinder.BoundFieldModule;
+import net.runelite.api.Actor;
+import net.runelite.api.Client;
+import net.runelite.api.events.InteractingChanged;
+import net.runelite.api.NPC;
+import net.runelite.api.Player;
+import net.runelite.client.ui.overlay.OverlayManager;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertSame;
+import org.junit.Before;
+import org.junit.runner.RunWith;
+import org.junit.Test;
+import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.Mock;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+@RunWith(MockitoJUnitRunner.class)
+public class OpponentInfoPluginTest
+{
+	@Mock
+	@Bind
+	Client client;
+
+	@Mock
+	@Bind
+	OverlayManager overlayManager;
+
+	@Mock
+	@Bind
+	OpponentInfoConfig config;
+
+	@Mock
+	@Bind
+	OpponentInfoOverlay opponentInfoOverlay;
+
+	@Mock
+	@Bind
+	PlayerComparisonOverlay playerComparisonOverlay;
+
+	@Inject
+	OpponentInfoPlugin plugin;
+
+	private final Player localPlayer = mock(Player.class);
+
+	@Before
+	public void before()
+	{
+		Guice.createInjector(BoundFieldModule.of(this)).injectMembers(this);
+
+		when(client.getLocalPlayer()).thenReturn(localPlayer);
+	}
+
+	@Test
+	public void testNpcInteractions()
+	{
+		final NPC npc = mock(NPC.class);
+
+		interactingChanged(npc, localPlayer);
+
+		assertNull(plugin.getLastOpponent());
+		assertNull(plugin.getLastTime());
+
+		interactingChanged(npc, null);
+
+		assertNull(plugin.getLastOpponent());
+		assertNull(plugin.getLastTime());
+
+		interactingChanged(localPlayer, npc);
+
+		assertSame(npc, plugin.getLastOpponent());
+		assertNull(plugin.getLastTime());
+
+		interactingChanged(npc, localPlayer);
+
+		assertSame(npc, plugin.getLastOpponent());
+		assertNull(plugin.getLastTime());
+
+		interactingChanged(localPlayer, null);
+
+		// last opponent is remembered for 5 seconds
+		assertSame(npc, plugin.getLastOpponent());
+		assertNotNull(plugin.getLastTime());
+	}
+
+	@Test
+	public void testOtherPlayerInteractions()
+	{
+		final Player otherPlayer = mock(Player.class);
+
+		interactingChanged(otherPlayer, localPlayer);
+
+		assertNull(plugin.getLastOpponent());
+		assertNull(plugin.getLastTime());
+
+		interactingChanged(otherPlayer, null);
+
+		assertNull(plugin.getLastOpponent());
+		assertNull(plugin.getLastTime());
+
+		interactingChanged(localPlayer, otherPlayer);
+
+		assertSame(otherPlayer, plugin.getLastOpponent());
+		assertNull(plugin.getLastTime());
+
+		interactingChanged(otherPlayer, localPlayer);
+
+		assertSame(otherPlayer, plugin.getLastOpponent());
+		assertNull(plugin.getLastTime());
+
+		interactingChanged(localPlayer, null);
+
+		// last opponent is remembered for 5 seconds
+		assertSame(otherPlayer, plugin.getLastOpponent());
+		assertNotNull(plugin.getLastTime());
+	}
+
+	@Test
+	public void testNonLocalPlayerInteractions()
+	{
+		final Player otherPlayer = mock(Player.class);
+		final NPC npc = mock(NPC.class);
+
+		interactingChanged(otherPlayer, npc);
+
+		assertNull(plugin.getLastOpponent());
+		assertNull(plugin.getLastTime());
+
+		interactingChanged(npc, otherPlayer);
+
+		assertNull(plugin.getLastOpponent());
+		assertNull(plugin.getLastTime());
+
+		interactingChanged(otherPlayer, null);
+
+		assertNull(plugin.getLastOpponent());
+		assertNull(plugin.getLastTime());
+
+		interactingChanged(npc, null);
+
+		assertNull(plugin.getLastOpponent());
+		assertNull(plugin.getLastTime());
+	}
+
+	private void interactingChanged(final Actor source, final Actor target)
+	{
+		when(source.getInteracting()).thenReturn(target);
+		plugin.onInteractingChanged(new InteractingChanged(source, target));
+	}
+}