diff --git a/core/modules/simpletest/config/install/simpletest.settings.yml b/core/modules/simpletest/config/install/simpletest.settings.yml
new file mode 100644
index 0000000000..a2254cc063
--- /dev/null
+++ b/core/modules/simpletest/config/install/simpletest.settings.yml
@@ -0,0 +1,6 @@
+clear_results: true
+httpauth:
+  method: 1
+  password: ''
+  username: ''
+verbose: true
diff --git a/core/modules/simpletest/config/schema/simpletest.schema.yml b/core/modules/simpletest/config/schema/simpletest.schema.yml
new file mode 100644
index 0000000000..827ef56012
--- /dev/null
+++ b/core/modules/simpletest/config/schema/simpletest.schema.yml
@@ -0,0 +1,25 @@
+# Schema for the configuration files of the Simpletest module.
+
+simpletest.settings:
+  type: config_object
+  label: 'Testing'
+  mapping:
+    clear_results:
+      type: boolean
+      label: 'Clear results after each complete test suite run'
+    verbose:
+      type: boolean
+      label: 'Provide verbose information when running tests'
+    httpauth:
+      type: mapping
+      label: 'HTTP authentication'
+      mapping:
+        method:
+          type: integer
+          label: 'Method'
+        username:
+          type: string
+          label: 'Username'
+        password:
+          type: string
+          label: 'Password'