diff --git a/frontend/src/components/Inputs/InputAmount.spec.js b/frontend/src/components/Inputs/InputAmount.spec.js
index f2fc48888..9acf79fd2 100644
--- a/frontend/src/components/Inputs/InputAmount.spec.js
+++ b/frontend/src/components/Inputs/InputAmount.spec.js
@@ -5,6 +5,7 @@ const localVue = global.localVue
 
 describe('InputAmount', () => {
   let wrapper
+  let valid
 
   const mocks = {
     $t: jest.fn((t) => t),
@@ -14,28 +15,105 @@ describe('InputAmount', () => {
     $n: jest.fn((n) => String(n)),
   }
 
-  const propsData = {
-    name: '',
-    label: '',
-    placeholder: '',
-    value: '',
-  }
+  describe('mount in a TransactionForm', () => {
+    const propsData = {
+      name: '',
+      label: '',
+      placeholder: '',
+      typ: 'TransactionForm',
+      value: '12.34',
+    }
 
-  const Wrapper = () => {
-    return mount(InputAmount, {
-      localVue,
-      mocks,
-      propsData,
-    })
-  }
+    const Wrapper = () => {
+      return mount(InputAmount, {
+        localVue,
+        mocks,
+        propsData,
+      })
+    }
 
-  describe('mount', () => {
     beforeEach(() => {
       wrapper = Wrapper()
+      wrapper.vm.$options.watch.value.call(wrapper.vm)
     })
 
     it('renders the component input-amount', () => {
       expect(wrapper.find('div.input-amount').exists()).toBe(true)
     })
+
+    describe('amount normalization', () => {
+      describe('if invalid', () => {
+        beforeEach(() => {
+          valid = false
+        })
+
+        it('is not normalized', () => {
+          wrapper.vm.normalizeAmount(valid)
+          expect(wrapper.vm.amountValue).toBe(0.0)
+        })
+      })
+
+      describe('if valid', () => {
+        beforeEach(() => {
+          valid = true
+        })
+
+        it('is normalized to a number - not rounded', async () => {
+          wrapper.vm.normalizeAmount(valid)
+          expect(wrapper.vm.currentValue).toBe('12.34')
+        })
+      })
+    })
+  })
+
+  describe('mount in a ContributionForm', () => {
+    const propsData = {
+      name: '',
+      label: '',
+      placeholder: '',
+      typ: 'ContributionForm',
+      value: '12.34',
+    }
+
+    const Wrapper = () => {
+      return mount(InputAmount, {
+        localVue,
+        mocks,
+        propsData,
+      })
+    }
+
+    beforeEach(() => {
+      wrapper = Wrapper()
+      wrapper.vm.$options.watch.value.call(wrapper.vm)
+    })
+
+    it('renders the component input-amount', () => {
+      expect(wrapper.find('div.input-amount').exists()).toBe(true)
+    })
+
+    describe('amount normalization', () => {
+      describe('if invalid', () => {
+        beforeEach(() => {
+          valid = false
+        })
+
+        it('is not normalized', () => {
+          wrapper.vm.normalizeAmount(valid)
+          expect(wrapper.vm.amountValue).toBe(0.0)
+        })
+      })
+
+      describe('if valid', () => {
+        beforeEach(() => {
+          valid = true
+        })
+
+        it('is normalized to a rounded number', () => {
+          wrapper.vm.normalizeAmount(valid)
+          expect(wrapper.vm.currentValue).toBe('12')
+        })
+      })
+    })
   })
 })