WA-235 adding updateThreshold action

src/routes/safe/store/actions/updateThreshold.js

@@ -0,0 +1,19 @@
+// @flow
+import { createAction } from 'redux-actions'
+
+export const UPDATE_THRESHOLD = 'UPDATE_THRESHOLD'
+
+type ThresholdProps = {
+  safeAddress: string,
+  threshold: number,
+}
+
+const updateDailyLimit = createAction(
+  UPDATE_THRESHOLD,
+  (safeAddress: string, threshold: number): ThresholdProps => ({
+    safeAddress,
+    threshold: Number(threshold),
+  }),
+)
+
+export default updateDailyLimit

src/routes/safe/store/test/threshold.reducer.js

@@ -0,0 +1,48 @@
+// @flow
+import { SAFE_REDUCER_ID } from '~/routes/safe/store/reducer/safe'
+import { aNewStore } from '~/store'
+import updateThreshold from '~/routes/safe/store/actions/updateThreshold'
+import { aDeployedSafe } from './builder/deployedSafe.builder'
+
+const thresholdReducerTests = () => {
+  describe('Safe Actions[updateThreshold]', () => {
+    let store
+    beforeEach(async () => {
+      store = aNewStore()
+    })
+
+    it('reducer should return 3 when a safe of 3 threshold has just been created', async () => {
+      // GIVEN
+      const safeThreshold = 3
+      const numOwners = 3
+
+      // WHEN
+      const safeAddress = await aDeployedSafe(store, 0.5, safeThreshold, numOwners)
+
+      // THEN
+      const safes = store.getState()[SAFE_REDUCER_ID]
+      const threshold = safes.get(safeAddress).get('confirmations')
+      expect(threshold).not.toBe(undefined)
+      expect(threshold).toBe(safeThreshold)
+    })
+
+    it('reducer should change correctly', async () => {
+      // GIVEN
+      const safeThreshold = 3
+      const numOwners = 3
+      const safeAddress = await aDeployedSafe(store, 0.5, safeThreshold, numOwners)
+
+      // WHEN
+      const newThreshold = 1
+      await store.dispatch(updateThreshold(safeAddress, newThreshold))
+
+      // THEN
+      const safes = store.getState()[SAFE_REDUCER_ID]
+      const threshold = safes.get(safeAddress).get('confirmations')
+      expect(threshold).not.toBe(undefined)
+      expect(threshold).toBe(newThreshold)
+    })
+  })
+}
+
+export default thresholdReducerTests