1 files changed, 62 insertions, 0 deletions
diff --git a/spec/frontend/behaviors/requires_input_spec.js b/spec/frontend/behaviors/requires_input_spec.js
new file mode 100644
index 00000000000..617fe49b059
--- /dev/null
+++ b/spec/frontend/behaviors/requires_input_spec.js
@@ -0,0 +1,62 @@
+import $ from 'jquery';
+import '~/behaviors/requires_input';
+
+describe('requiresInput', () => {
+  let submitButton;
+  preloadFixtures('branches/new_branch.html');
+
+  beforeEach(() => {
+    loadFixtures('branches/new_branch.html');
+    submitButton = $('button[type="submit"]');
+  });
+
+  it('disables submit when any field is required', () => {
+    $('.js-requires-input').requiresInput();
+
+    expect(submitButton).toBeDisabled();
+  });
+
+  it('enables submit when no field is required', () => {
+    $('*[required=required]').prop('required', false);
+    $('.js-requires-input').requiresInput();
+
+    expect(submitButton).not.toBeDisabled();
+  });
+
+  it('enables submit when all required fields are pre-filled', () => {
+    $('*[required=required]').remove();
+    $('.js-requires-input').requiresInput();
+
+    expect($('.submit')).not.toBeDisabled();
+  });
+
+  it('enables submit when all required fields receive input', () => {
+    $('.js-requires-input').requiresInput();
+    $('#required1')
+      .val('input1')
+      .change();
+
+    expect(submitButton).toBeDisabled();
+
+    $('#optional1')
+      .val('input1')
+      .change();
+
+    expect(submitButton).toBeDisabled();
+
+    $('#required2')
+      .val('input2')
+      .change();
+    $('#required3')
+      .val('input3')
+      .change();
+    $('#required4')
+      .val('input4')
+      .change();
+    $('#required5')
+      .val('1')
+      .change();
+
+    expect($('.submit')).not.toBeDisabled();
+  });
+});