Create test for CommandManager; fix javadoc in CommandDescription

src/test/java/fr/xephi/authme/command/CommandManagerTest.java

@@ -0,0 +1,41 @@
+package fr.xephi.authme.command;
+
+import org.junit.Test;
+
+import java.util.List;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.junit.Assert.assertThat;
+
+/**
+ * Test for {@link CommandManager}.
+ */
+public class CommandManagerTest {
+
+    @Test
+    public void shouldInitializeCommands() {
+        // given/when
+        CommandManager manager = new CommandManager(true);
+        int commandCount = manager.getCommandDescriptionCount();
+        List<CommandDescription> commands = manager.getCommandDescriptions();
+
+        // then
+        // It obviously doesn't make sense to test much of the concrete data
+        // that is being initialized; we just want to guarantee with this test
+        // that data is indeed being initialized and we take a few "probes"
+        assertThat(commandCount, equalTo(9));
+        assertThat(commandsIncludeLabel(commands, "authme"), equalTo(true));
+        assertThat(commandsIncludeLabel(commands, "register"), equalTo(true));
+        assertThat(commandsIncludeLabel(commands, "help"), equalTo(false));
+    }
+
+    private static boolean commandsIncludeLabel(Iterable<CommandDescription> commands, String label) {
+        for (CommandDescription command : commands) {
+            if (command.getLabels().contains(label)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+}