Add tests

telegrambots-meta/src/main/java/org/telegram/telegrambots/meta/api/objects/replykeyboard/buttons/KeyboardRow.java

@@ -22,7 +22,7 @@ public class KeyboardRow extends ArrayList<KeyboardButton> implements Validable
     }
 
     public void addAll(List<String> buttonNames) {
-        buttonNames.forEach(KeyboardButton::new);
+        buttonNames.forEach(name -> super.add(new KeyboardButton(name)));
     }
 
     public boolean contains(String text) {

telegrambots-meta/src/test/java/org/telegram/telegrambots/meta/api/objects/replykeyboard/buttons/KeyboardRowTest.java

@@ -0,0 +1,34 @@
+package org.telegram.telegrambots.meta.api.objects.replykeyboard.buttons;
+
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import static java.util.Arrays.asList;
+import static org.hamcrest.core.Is.is;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+
+public class KeyboardRowTest {
+
+    private static final List<String> BUTTON_NAMES = asList("Carlotta Valdes", "Jimmy Stewart");
+
+    @Test
+    public void shouldAddAllButtons() {
+        final KeyboardRow keyboardRow = new KeyboardRow();
+        keyboardRow.addAll(BUTTON_NAMES);
+        assertThat(keyboardRow.size(), is(2));
+        assertThat(keyboardRow.get(0).getText(), is("Carlotta Valdes"));
+        assertThat(keyboardRow.get(1).getText(), is("Jimmy Stewart"));
+    }
+
+    @Test
+    public void shouldAddNoButtons() {
+        final KeyboardRow keyboardRow = new KeyboardRow();
+        keyboardRow.addAll(new ArrayList<String>());
+        assertTrue(keyboardRow.isEmpty());
+    }
+
+}