1 files changed, 82 insertions, 0 deletions
diff --git a/web/src/js/__tests__/ducks/views/main.js b/web/src/js/__tests__/ducks/views/main.js
new file mode 100644
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+++ b/web/src/js/__tests__/ducks/views/main.js
@@ -0,0 +1,82 @@
+jest.unmock('../../../ducks/views/main');
+jest.unmock('../../../ducks/utils/view');
+jest.unmock('redux-thunk')
+jest.unmock('redux')
+
+import reduce, { selectRelative } from '../../../ducks/views/main';
+import thunk from 'redux-thunk'
+import { applyMiddleware, createStore, combineReducers } from 'redux'
+
+describe('main reduce', () => {
+
+    describe('select previous', () => {
+
+        it('should not changed when first flow is selected', () => {
+            const flows = [{ id: 1 }, { id: 2 }, { id: 3 }, { id: 4 }]
+            const store = createTestStore(makeState(flows, 1))
+            store.dispatch(selectRelative(-1))
+            expect(store.getState().flows.views.main.selected).toEqual([1])
+        })
+
+        it('should select last flow if no flow is selected', () => {
+            const flows = [{ id: 1 }, { id: 2 }, { id: 3 }, { id: 4 }]
+            const store = createTestStore(makeState(flows))
+            store.dispatch(selectRelative(-1))
+            expect(store.getState().flows.views.main.selected).toEqual([4])
+        })
+
+    })
+
+    describe('select next', () => {
+
+        it('should not change when last flow is selected', () => {
+            const flows = [{ id: 1 }, { id: 2 }, { id: 3 }, { id: 4 }]
+            const store = createTestStore(makeState(flows, 4))
+            store.dispatch(selectRelative(1))
+            expect(store.getState().flows.views.main.selected).toEqual([4])
+        })
+
+        it('should select first flow if no flow is selected', () => {
+            const flows = [{ id: 1 }, { id: 2 }, { id: 3 }, { id: 4 }]
+            const store = createTestStore(makeState(flows, 1))
+            store.dispatch(selectRelative(1))
+            expect(store.getState().flows.views.main.selected).toEqual([2])
+        })
+
+    })
+})
+
+function createTestStore(defaultState) {
+    return createStore(
+        (state = defaultState, action) => ({
+            flows: {
+                ...state.flows,
+                views: {
+                    main: reduce(state.flows.views.main, action)
+                }
+            }
+        }),
+        defaultState,
+        applyMiddleware(thunk)
+    )
+}
+
+function makeState(flows, selected) {
+    const list = {
+        data: flows,
+        byId: _.fromPairs(flows.map(flow => [flow.id, flow])),
+        indexOf: _.fromPairs(flows.map((flow, index) => [flow.id, index])),
+    }
+
+    return {
+        flows: {
+            list,
+            views: {
+                main: {
+                    selected: [selected],
+                    view: list,
+                }
+            }
+        }
+    }
+}