diff --git a/sources/content/src/Tests/ContentEntitySourceUiTest.php b/sources/content/src/Tests/ContentEntitySourceUiTest.php
index 0e66e9c..9151521 100644
--- a/sources/content/src/Tests/ContentEntitySourceUiTest.php
+++ b/sources/content/src/Tests/ContentEntitySourceUiTest.php
@@ -189,6 +189,15 @@ class ContentEntitySourceUiTest extends EntityTestBase {
     );
     $this->drupalPostForm(NULL, $edit, t('Request translation'));
     $this->drupalPostForm(NULL, array(), t('Submit to provider'));
+    $edit = array(
+      'languages[fr]' => TRUE,
+    );
+    $this->drupalPostForm(NULL, $edit, t('Request translation'));
+    $edit = array(
+      'target_language' => 'de',
+    );
+    $this->drupalPostForm(NULL, $edit, t('Submit to provider'));
+    $this->assertText(t('1 conflicting item has been dropped.'));
     $this->clickLink(t('Needs review'));
 
     // Delete the node and assert that the job can not be accepted.
diff --git a/src/Tests/TMGMTCartTest.php b/src/Tests/TMGMTCartTest.php
index b7ff302..580daa7 100644
--- a/src/Tests/TMGMTCartTest.php
+++ b/src/Tests/TMGMTCartTest.php
@@ -97,6 +97,23 @@ class TMGMTCartTest extends TMGMTTestBase {
     $this->drupalGet('admin/tmgmt/cart');
     $this->assertText($node_cs->getTitle());
     $this->assertNoText($node_sk->getTitle());
+
+    // Test that duplicate submission of an item is not allowed.
+    $this->drupalPostForm('admin/tmgmt/cart', array(
+      'target_language[]' => array('es'),
+    ), t('Request translation'));
+
+    $job_item_cs = tmgmt_job_item_create('content', 'node', $node_cs->id());
+    $job_item_cs->save();
+    $this->drupalGet('tmgmt-add-to-cart/' . $job_item_cs->id());
+    $job_items_data[$job_item_cs->getItemId()] = $job_item_cs->getItemType();
+
+    $this->drupalPostForm('admin/tmgmt/cart', array(
+      'target_language[]' => array('es'),
+    ), t('Request translation'));
+    $this->assertText(t('1 item conflict with pending item and will be dropped on submission.'));
+    $this->drupalPostForm(NULL, array(), t('Submit to provider'));
+    $this->assertText(t('1 conflicting item has been dropped.'));
   }
 
 }
diff --git a/src/Tests/TMGMTUiReviewTest.php b/src/Tests/TMGMTUiReviewTest.php
index 3f88e60..3485de3 100644
--- a/src/Tests/TMGMTUiReviewTest.php
+++ b/src/Tests/TMGMTUiReviewTest.php
@@ -348,6 +348,9 @@ class TMGMTUiReviewTest extends EntityTestBase {
     $job1->set('translator', $translator1->id())->save();
     $job2->set('translator', $translator2->id())->save();
 
+    // Test that progress bar is being displayed.
+    $this->assertRaw('class="tmgmt-progress-pending" style="width: 50%"');
+
     // Filter jobs by translator and assert values.
     $this->drupalGet('admin/tmgmt/jobs', array('query' => array('translator' => $translator1->id())));
     $label = trim((string) $this->xpath('//table[@class="views-table views-view-table cols-10"]/tbody/tr')[0]->td[4]);
@@ -393,7 +396,6 @@ class TMGMTUiReviewTest extends EntityTestBase {
     $this->assertRaw('class="tmgmt-color-legend clearfix"');
 
     // Test that progress bar is being displayed.
-    $this->assertRaw('class="tmgmt-progress-pending" style="width: 50%"');
     $this->assertRaw('class="tmgmt-progress-translated" style="width: 100%"');
   }