diff --git a/src/Tests/InstagramBlockPlaceBlockTest.php b/src/Tests/InstagramBlockPlaceBlockTest.php
new file mode 100644
index 0000000..bc446ac
--- /dev/null
+++ b/src/Tests/InstagramBlockPlaceBlockTest.php
@@ -0,0 +1,128 @@
+<?php
+
+namespace Drupal\instagram_block\Tests;
+
+use Drupal\simpletest\WebTestBase;
+
+/**
+ * Test the placing of Instagram block blocks.
+ *
+ * @group instagram_block
+ */
+class InstagramBlockPlaceBlockTest extends WebTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['instagram_block'];
+
+  /**
+   * The block entities used by this test.
+   *
+   * @var \Drupal\block\BlockInterface[]
+   */
+  protected $blocks;
+
+  /**
+   * A user with permission to administer instagram block.
+   *
+   * @var object
+   */
+  protected $adminUser;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+    // Create and log in an administrative user.
+    $this->adminUser = $this->drupalCreateUser(array(
+      'administer instagram block',
+      'administer blocks',
+      'access administration pages',
+    ));
+    $this->drupalLogin($this->adminUser);
+  }
+
+  /**
+   * Test block admin page exists and functions correctly.
+   */
+  public function testBlockAdminUiPage() {
+    // Visit the blocks admin ui.
+    $this->drupalGet('admin/structure/block');
+
+    // Check that there are no blocks in the header region.
+    $element = $this->xpath('//tr[contains(@class, :class1) and contains(@class, :class2)]', [
+      ':class1' => 'region-header-message',
+      ':class2' => 'region-empty',
+    ]);
+    $this->assertTrue(!empty($element));
+
+    // Place an instagram block in the header region.
+    $values = [
+      'plugin_id' => 'instagram_block_block',
+      'settings' => array('region' => 'header', 'id' => 'instagramblock'),
+    ];
+    $this->drupalPlaceBlock($values['plugin_id'], $values['settings']);
+
+    // Check that the block was placed successfully.
+    $this->drupalGet('admin/structure/block');
+    $element = $this->xpath('//tr[contains(@class, :class1) and contains(@class, :class2)]', [
+      ':class1' => 'region-header-message',
+      ':class2' => 'region-populated',
+    ]);
+    $this->assertTrue(!empty($element));
+
+    // Test context mapping with valid data.
+    $this->drupalGet('admin/structure/block/manage/instagramblock');
+    $edit = [
+      'settings[count]' => '4',
+      'settings[width]' => '150',
+      'settings[height]' => '150',
+      'settings[img_resolution]' => 'thumbnail',
+      'settings[cache_time_minutes]' => '1440',
+    ];
+    $this->drupalPostForm(NULL, $edit, 'Save block');
+    $this->assertText('The block configuration has been saved.', 'Block save without errors.');
+
+    // Test count with invalid data.
+    $edit = [
+      'settings[count]' => $this->randomString(4),
+    ];
+    $this->drupalPostForm('admin/structure/block/manage/instagramblock', $edit, 'Save block');
+    $this->assertText('Number of images to display. must be a number.', 'Block failed to save.');
+
+    // Test width with invalid data.
+    $edit = [
+      'settings[width]' => $this->randomString(4),
+    ];
+    $this->drupalPostForm('admin/structure/block/manage/instagramblock', $edit, 'Save block');
+    $this->assertText('Image width in pixels. must be a number.', 'Block failed to save.');
+
+    // Test height with invalid data.
+    $edit = [
+      'settings[height]' => $this->randomString(4),
+    ];
+    $this->drupalPostForm('admin/structure/block/manage/instagramblock', $edit, 'Save block');
+    $this->assertText('Image height in pixels. must be a number.', 'Block failed to save.');
+
+    // Test cache_time_minutes with invalid data.
+    $edit = [
+      'settings[cache_time_minutes]' => $this->randomString(4),
+    ];
+    $this->drupalPostForm('admin/structure/block/manage/instagramblock', $edit, 'Save block');
+    $this->assertText('Cache time in minutes must be a number.', 'Block failed to save.');
+  }
+
+  /**
+   * Test availability of block in the admin 'Place blocks' list.
+   */
+  public function testCoreThemeBlockList() {
+    \Drupal::service('theme_handler')->install(['bartik', 'seven', 'stark']);
+    foreach (['bartik', 'seven', 'stark'] as $theme) {
+      $this->drupalGet("admin/structure/block/library/$theme");
+      $this->assertText('Instagram block', "Instagram block found in $theme theme block selection.");
+    }
+  }
+
+}