Change mutation to include id in the result, write test to update contribution with inexistent id.

backend/src/graphql/resolver/ContributionResolver.test.ts

@@ -13,6 +13,7 @@ import { peterLustig } from '@/seeds/users/peter-lustig'
 
 let mutate: any, query: any, con: any
 let testEnv: any
+let result: any
 
 beforeAll(async () => {
   testEnv = await testEnvironment()
@@ -159,6 +160,14 @@ describe('ContributionResolver', () => {
           query: login,
           variables: { email: 'bibi@bloxberg.de', password: 'Aa12345_' },
         })
+        await mutate({
+          mutation: createContribution,
+          variables: {
+            amount: 100.0,
+            memo: 'Test env contribution',
+            creationDate: new Date().toString(),
+          },
+        })
       })
 
       afterAll(async () => {
@@ -233,5 +242,49 @@ describe('ContributionResolver', () => {
         )
       })
     })
+
+    describe('authenticated', () => {
+      beforeAll(async () => {
+        await userFactory(testEnv, peterLustig)
+        await userFactory(testEnv, bibiBloxberg)
+        // bibi needs GDDs
+        const bibisCreation = creations.find((creation) => creation.email === 'bibi@bloxberg.de')
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+        await creationFactory(testEnv, bibisCreation!)
+        // await userFactory(testEnv, bibiBloxberg)
+        await query({
+          query: login,
+          variables: { email: 'bibi@bloxberg.de', password: 'Aa12345_' },
+        })
+        result = await mutate({
+          mutation: createContribution,
+          variables: {
+            amount: 100.0,
+            memo: 'Test env contribution',
+            creationDate: new Date().toString(),
+          },
+        })
+      })
+
+      describe('wrong contribution id', () => {
+        it('throws an error', async () => {
+          await expect(
+            mutate({
+              mutation: updateContribution,
+              variables: {
+                contributionId: -1,
+                amount: 100.0,
+                memo: 'Test env contribution',
+                creationDate: new Date().toString(),
+              },
+            }),
+          ).resolves.toEqual(
+            expect.objectContaining({
+              errors: [new GraphQLError('No contribution found to given id.')],
+            }),
+          )
+        })
+      })
+    })
   })
 })

backend/src/seeds/graphql/mutations.ts

@@ -234,6 +234,7 @@ export const deleteContributionLink = gql`
 export const createContribution = gql`
   mutation ($amount: Decimal!, $memo: String!, $creationDate: String!) {
     createContribution(amount: $amount, memo: $memo, creationDate: $creationDate) {
+      id
       amount
       memo
     }