Update tests

Author: MinThaMie

tests/integration/components/es-pagination-test.js

@@ -8,7 +8,7 @@ module('Integration | Component | es-pagination', function (hooks) {
 
   test('it renders', async function (assert) {
     await render(hbs`
-    <EsPagination>
+    <EsPagination @showPrevious={{true}} @showNext={{true}}>
       <:previous>
         Newer articles
       </:previous>
@@ -20,4 +20,34 @@ module('Integration | Component | es-pagination', function (hooks) {
 
     assert.dom(this.element).hasText('Newer articles Older articles');
   });
+  test('it renders only previous', async function (assert) {
+    await render(hbs`
+    <EsPagination @showPrevious={{true}} @showNext={{false}}>
+      <:previous>
+        Newer articles
+      </:previous>
+      <:next>
+        Older articles
+      </:next>
+    </EsPagination>
+    `);
+
+    assert.dom(this.element).hasText('Newer articles');
+    assert.dom(this.element).doesNotIncludeText('Older articles');
+  });
+  test('it renders only next', async function (assert) {
+    await render(hbs`
+    <EsPagination @showPrevious={{false}} @showNext={{true}}>
+      <:previous>
+        Newer articles
+      </:previous>
+      <:next>
+        Older articles
+      </:next>
+    </EsPagination>
+    `);
+
+    assert.dom(this.element).hasText('Older articles');
+    assert.dom(this.element).doesNotIncludeText('Newer articles');
+  });
 });