Show message for missing Atmosphere or version mismatch (#11499)

Change-Id: I05ed55319092248db4a3f2d0975f918c9176a6c6

1 files changed, 18 insertions, 0 deletions

diff --git a/server/tests/src/com/vaadin/tests/server/TestAtmosphereVersion.java b/server/tests/src/com/vaadin/tests/server/TestAtmosphereVersion.java
new file mode 100644
index 0000000000..5c27ef0752
--- /dev/null
+++ b/server/tests/src/com/vaadin/tests/server/TestAtmosphereVersion.java
@@ -0,0 +1,18 @@
+package com.vaadin.tests.server;
+
+import junit.framework.TestCase;
+
+import org.atmosphere.util.Version;
+
+import com.vaadin.server.Constants;
+
+public class TestAtmosphereVersion extends TestCase {
+    /**
+     * Test that the atmosphere version constant matches the version on our
+     * classpath
+     */
+    public void testAtmosphereVersion() {
+        assertEquals(Constants.REQUIRED_ATMOSPHERE_VERSION,
+                Version.getRawVersion());
+    }
+}