diff --git a/frontend/src/components/Template/ContentHeader/GdtAmount.spec.js b/frontend/src/components/Template/ContentHeader/GdtAmount.spec.js
index 30ce85817..739a00676 100644
--- a/frontend/src/components/Template/ContentHeader/GdtAmount.spec.js
+++ b/frontend/src/components/Template/ContentHeader/GdtAmount.spec.js
@@ -1,19 +1,30 @@
 import { mount } from '@vue/test-utils'
 import GdtAmount from './GdtAmount'
+import { updateUserInfos } from '@/graphql/mutations'
+import flushPromises from 'flush-promises'
+
+import { toastErrorSpy, toastSuccessSpy } from '@test/testSetup'
 
 const localVue = global.localVue
 
+const mockAPICall = jest.fn()
+const storeCommitMock = jest.fn()
+
 const state = {
-  language: 'en',
+  hideAmountGDT: false,
 }
 
 const mocks = {
   $store: {
     state,
+    commit: storeCommitMock,
   },
   $i18n: {
     locale: 'en',
   },
+  $apollo: {
+    mutate: mockAPICall,
+  },
   $t: jest.fn((t) => t),
   $n: jest.fn((n) => n),
 }
@@ -39,5 +50,88 @@ describe('GdtAmount', () => {
     it('renders the component gdt-amount', () => {
       expect(wrapper.find('div.gdt-amount').exists()).toBe(true)
     })
+
+    describe('API throws exception', () => {
+      beforeEach(async () => {
+        mockAPICall.mockRejectedValue({
+          message: 'Ouch',
+        })
+        jest.clearAllMocks()
+        await wrapper.find('div.border-left svg').trigger('click')
+        await flushPromises()
+      })
+
+      it('toasts an error message', () => {
+        expect(toastErrorSpy).toBeCalledWith('Ouch')
+      })
+    })
+
+    describe('API call successful', () => {
+      beforeEach(async () => {
+        mockAPICall.mockResolvedValue({
+          data: {
+            updateUserInfos: {
+              validValues: 1,
+            },
+          },
+        })
+        jest.clearAllMocks()
+        await wrapper.find('div.border-left svg').trigger('click')
+        await flushPromises()
+      })
+
+      it('calls the API', () => {
+        expect(mockAPICall).toBeCalledWith(
+          expect.objectContaining({
+            mutation: updateUserInfos,
+            variables: {
+              hideAmountGDT: true,
+            },
+          }),
+        )
+      })
+
+      it('commits hideAmountGDT to store', () => {
+        expect(storeCommitMock).toBeCalledWith('hideAmountGDT', true)
+      })
+
+      it('toasts a success message', () => {
+        expect(toastSuccessSpy).toBeCalledWith('settings.showAmountGDT')
+      })
+    })
+  })
+
+  describe.skip('second call to API', () => {
+    beforeEach(async () => {
+      mockAPICall.mockResolvedValue({
+        data: {
+          updateUserInfos: {
+            validValues: 1,
+          },
+        },
+      })
+      jest.clearAllMocks()
+      await wrapper.find('div.border-left svg').trigger('click')
+      await flushPromises()
+    })
+
+    it('calls the API', () => {
+      expect(mockAPICall).toBeCalledWith(
+        expect.objectContaining({
+          mutation: updateUserInfos,
+          variables: {
+            hideAmountGDT: true,
+          },
+        }),
+      )
+    })
+
+    it('commits hideAmountGDT to store', () => {
+      expect(storeCommitMock).toBeCalledWith('hideAmountGDT', false)
+    })
+
+    it('toasts a success message', () => {
+      expect(toastSuccessSpy).toBeCalledWith('settings.hideAmountGDT')
+    })
   })
 })