diff --git a/.eslintrc.tests.json b/.eslintrc.tests.json
index 64f66af2b0..a9621ac7be 100644
--- a/.eslintrc.tests.json
+++ b/.eslintrc.tests.json
@@ -14,7 +14,6 @@
     "no-bitwise": 0,
     "func-call-spacing": 0,
     "max-len": 0,
-    "space-unary-ops": 0,
     "no-underscore-dangle": 0,
     "no-shadow": 0,
     "padded-blocks": 0,
diff --git a/tests/javascript/newsletter_editor/blocks/automatedLatestContent.spec.js b/tests/javascript/newsletter_editor/blocks/automatedLatestContent.spec.js
index 058f2edc7f..ca23d4a4b9 100644
--- a/tests/javascript/newsletter_editor/blocks/automatedLatestContent.spec.js
+++ b/tests/javascript/newsletter_editor/blocks/automatedLatestContent.spec.js
@@ -555,7 +555,7 @@ define([
           global.MailPoet.Modal.cancel = mock;
           view.$('.mailpoet_done_editing').click();
           mock.verify();
-          delete(global.MailPoet.Modal.cancel);
+          delete (global.MailPoet.Modal.cancel);
         });
       });
     });
diff --git a/tests/javascript/newsletter_editor/blocks/button.spec.js b/tests/javascript/newsletter_editor/blocks/button.spec.js
index 1ab14a0cc7..8a7eb6085b 100644
--- a/tests/javascript/newsletter_editor/blocks/button.spec.js
+++ b/tests/javascript/newsletter_editor/blocks/button.spec.js
@@ -480,7 +480,7 @@ define([
           global.MailPoet.Modal.cancel = mock;
           view.$('.mailpoet_done_editing').click();
           mock.verify();
-          delete(global.MailPoet.Modal.cancel);
+          delete (global.MailPoet.Modal.cancel);
         });
       });
     });
diff --git a/tests/javascript/newsletter_editor/blocks/container.spec.js b/tests/javascript/newsletter_editor/blocks/container.spec.js
index b774116390..213d042488 100644
--- a/tests/javascript/newsletter_editor/blocks/container.spec.js
+++ b/tests/javascript/newsletter_editor/blocks/container.spec.js
@@ -222,7 +222,7 @@ define([
           global.MailPoet.Modal.cancel = mock;
           view.$('.mailpoet_done_editing').click();
           mock.verify();
-          delete(global.MailPoet.Modal.cancel);
+          delete (global.MailPoet.Modal.cancel);
         });
       });
     });
diff --git a/tests/javascript/newsletter_editor/blocks/divider.spec.js b/tests/javascript/newsletter_editor/blocks/divider.spec.js
index 022f705fea..30918c3d53 100644
--- a/tests/javascript/newsletter_editor/blocks/divider.spec.js
+++ b/tests/javascript/newsletter_editor/blocks/divider.spec.js
@@ -222,7 +222,7 @@ define([
           global.MailPoet.Modal.cancel = mock;
           view.$('.mailpoet_done_editing').click();
           mock.verify();
-          delete(global.MailPoet.Modal.cancel);
+          delete (global.MailPoet.Modal.cancel);
         });
       });
     });
diff --git a/tests/javascript/newsletter_editor/blocks/footer.spec.js b/tests/javascript/newsletter_editor/blocks/footer.spec.js
index d981af3225..558a012448 100644
--- a/tests/javascript/newsletter_editor/blocks/footer.spec.js
+++ b/tests/javascript/newsletter_editor/blocks/footer.spec.js
@@ -203,7 +203,7 @@ define([
           global.MailPoet.Modal.cancel = mock;
           view.$('.mailpoet_done_editing').click();
           mock.verify();
-          delete(global.MailPoet.Modal.cancel);
+          delete (global.MailPoet.Modal.cancel);
         });
       });
     });
diff --git a/tests/javascript/newsletter_editor/blocks/header.spec.js b/tests/javascript/newsletter_editor/blocks/header.spec.js
index 9385f11fb7..811aa83a47 100644
--- a/tests/javascript/newsletter_editor/blocks/header.spec.js
+++ b/tests/javascript/newsletter_editor/blocks/header.spec.js
@@ -203,7 +203,7 @@ define([
           global.MailPoet.Modal.cancel = mock;
           view.$('.mailpoet_done_editing').click();
           mock.verify();
-          delete(global.MailPoet.Modal.cancel);
+          delete (global.MailPoet.Modal.cancel);
         });
       });
     });
diff --git a/tests/javascript/newsletter_editor/blocks/image.spec.js b/tests/javascript/newsletter_editor/blocks/image.spec.js
index 96c9a28966..a5f30afecf 100644
--- a/tests/javascript/newsletter_editor/blocks/image.spec.js
+++ b/tests/javascript/newsletter_editor/blocks/image.spec.js
@@ -223,7 +223,7 @@ define([
           global.MailPoet.Modal.cancel = mock;
           view.$('.mailpoet_done_editing').click();
           mock.verify();
-          delete(global.MailPoet.Modal.cancel);
+          delete (global.MailPoet.Modal.cancel);
         });
       });
     });
diff --git a/tests/javascript/newsletter_editor/blocks/social.spec.js b/tests/javascript/newsletter_editor/blocks/social.spec.js
index 4e0aa82979..cacfb940d1 100644
--- a/tests/javascript/newsletter_editor/blocks/social.spec.js
+++ b/tests/javascript/newsletter_editor/blocks/social.spec.js
@@ -278,7 +278,7 @@ define([
           global.MailPoet.Modal.cancel = mock;
           view.$('.mailpoet_done_editing').click();
           mock.verify();
-          delete(global.MailPoet.Modal.cancel);
+          delete (global.MailPoet.Modal.cancel);
         });
       });
     });
diff --git a/tests/javascript/newsletter_editor/blocks/spacer.spec.js b/tests/javascript/newsletter_editor/blocks/spacer.spec.js
index ef52ae6b4e..56db09f18b 100644
--- a/tests/javascript/newsletter_editor/blocks/spacer.spec.js
+++ b/tests/javascript/newsletter_editor/blocks/spacer.spec.js
@@ -157,7 +157,7 @@ define([
           global.MailPoet.Modal.cancel = mock;
           view.$('.mailpoet_done_editing').click();
           mock.verify();
-          delete(global.MailPoet.Modal.cancel);
+          delete (global.MailPoet.Modal.cancel);
         });
       });
     });