Add warning metadata regression coverage

package/package/src/test/java/net/runelite/pluginhub/packager/PluginTest.java

@@ -28,6 +28,8 @@
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 import java.nio.charset.StandardCharsets;
 import java.util.Properties;
 import lombok.extern.slf4j.Slf4j;
@@ -79,6 +81,28 @@ public void testExamplePluginCompiles() throws DisabledPluginException, PluginBu
 		}
 	}
 
+	@Test
+	public void testWarningIsIncludedInDisplayData() throws Throwable
+	{
+		String warning = "This plugin submits your IP address to a 3rd-party server.";
+		try (Plugin p = newPlugin("warning", "" +
+			"repository=https://github.com/runelite/example-plugin.git\n" +
+			"commit=0000000000000000000000000000000000000000\n" +
+			"warning=" + warning))
+		{
+			try
+			{
+				assembleDisplayData(p);
+				Assert.fail();
+			}
+			catch (IOException e)
+			{
+				assertContains(e.getMessage(), "chunk.properties");
+			}
+			Assert.assertEquals(warning, p.getDisplayData().getWarning());
+		}
+	}
+
 	@Test
 	public void testMissingPlugin() throws DisabledPluginException, PluginBuildException, IOException, InterruptedException
 	{
@@ -220,4 +244,18 @@ private void assertContains(String haystack, String needle)
 	{
 		Assert.assertTrue(haystack, haystack.contains(needle));
 	}
+
+	private static void assembleDisplayData(Plugin plugin) throws Throwable
+	{
+		Method method = Plugin.class.getDeclaredMethod("assembleDisplayData", boolean.class);
+		method.setAccessible(true);
+		try
+		{
+			method.invoke(plugin, true);
+		}
+		catch (InvocationTargetException e)
+		{
+			throw e.getCause();
+		}
+	}
 }

plugins/grand-flip-out

@@ -0,0 +1,3 @@
+repository=https://github.com/Tunatroll/grand-flip-out.git
+commit=1d2649de4cb8cdac32a771b6e6fcb9396e32fdc1
+warning=This plugin submits your IP address to a 3rd-party server not controlled or verified by RuneLite developers.