diff --git a/core/modules/config/lib/Drupal/config/Tests/Storage/CachedStorageTest.php b/core/modules/config/lib/Drupal/config/Tests/Storage/CachedStorageTest.php
index 196d8d0..cb00a1e 100644
--- a/core/modules/config/lib/Drupal/config/Tests/Storage/CachedStorageTest.php
+++ b/core/modules/config/lib/Drupal/config/Tests/Storage/CachedStorageTest.php
@@ -58,13 +58,6 @@ public function testInvalidStorage() {
   /**
    * {@inheritdoc}
    */
-  public function testInvalidData() {
-    // No-op as this test does not make sense.
-  }
-
-  /**
-   * {@inheritdoc}
-   */
   protected function read($name) {
     $data = $this->cache->get($name);
     // Cache misses fall through to the underlying storage.
@@ -75,28 +68,16 @@ protected function read($name) {
    * {@inheritdoc}
    */
   protected function insert($name, $data) {
-    // Try writing to the file storage first catch exceptions so that we can do
-    // the invalid data tests.
-    try {
-      $this->filestorage->write($name, $data);
-      $this->cache->set($name, $data);
-    }
-    catch (\Exception $e) {
-    }
+    $this->filestorage->write($name, $data);
+    $this->cache->set($name, $data);
   }
 
   /**
    * {@inheritdoc}
    */
   protected function update($name, $data) {
-    // Try writing to the file storage first catch exceptions so that we can do
-    // the invalid data tests.
-    try {
-      $this->filestorage->write($name, $data);
-      $this->cache->set($name, $data);
-    }
-    catch (\Exception $e) {
-    }
+    $this->filestorage->write($name, $data);
+    $this->cache->set($name, $data);
   }
 
   /**
diff --git a/core/modules/config/lib/Drupal/config/Tests/Storage/ConfigStorageTestBase.php b/core/modules/config/lib/Drupal/config/Tests/Storage/ConfigStorageTestBase.php
index 8996359..c112ccd 100644
--- a/core/modules/config/lib/Drupal/config/Tests/Storage/ConfigStorageTestBase.php
+++ b/core/modules/config/lib/Drupal/config/Tests/Storage/ConfigStorageTestBase.php
@@ -158,22 +158,6 @@ public function testInvalidStorage() {
   }
 
   /**
-   * Test that invalid data can not be read from the storage.
-   */
-  public function testInvalidData() {
-    $name = 'config_test.storage';
-
-    // Reading a name containing non-decodeable data returns FALSE.
-    $this->insert($name, '');
-    $data = $this->storage->read($name);
-    $this->assertIdentical($data, FALSE);
-
-    $this->update($name, 'foo');
-    $data = $this->storage->read($name);
-    $this->assertIdentical($data, FALSE);
-  }
-
-  /**
    * Tests storage writing and reading data preserving data type.
    */
   function testDataTypes() {