Refs #2501: Add pagination for vehicle journeys

Signed-off-by: Thomas Shawarma Haddad <thomas.haddad@af83.com>

2 files changed, 83 insertions, 2 deletions

diff --git a/spec/javascripts/journey_patterns/reducers/pagination_spec.js b/spec/javascripts/journey_patterns/reducers/pagination_spec.js
index 4800451e9..d0f9fef47 100644
--- a/spec/javascripts/journey_patterns/reducers/pagination_spec.js
+++ b/spec/javascripts/journey_patterns/reducers/pagination_spec.js
@@ -3,9 +3,9 @@ var reducer = require('es6_browserified/journey_patterns/reducers/pagination')
 const diff = 1
 let state = {
   page : 2,
-  totalCount : 25,
+  totalCount : 50,
   stateChanged: false,
-  perPage: 12
+  perPage: 20
 }
 let pagination = Object.assign({}, state)
 const dispatch = function(){}
diff --git a/spec/javascripts/vehicle_journeys/reducers/pagination_spec.js b/spec/javascripts/vehicle_journeys/reducers/pagination_spec.js
new file mode 100644
index 000000000..240d99c85
--- /dev/null
+++ b/spec/javascripts/vehicle_journeys/reducers/pagination_spec.js
@@ -0,0 +1,81 @@
+var reducer = require('es6_browserified/vehicle_journeys/reducers/pagination')
+
+const diff = 1
+let state = {
+  page : 2,
+  totalCount : 25,
+  stateChanged: false,
+  perPage: 12
+}
+let pagination = Object.assign({}, state)
+const dispatch = function(){}
+
+describe('pagination reducer, given parameters allowing page change', () => {
+
+  it('should return the initial state', () => {
+    expect(
+      reducer(undefined, {})
+    ).toEqual({})
+  })
+
+  it('should handle GO_TO_NEXT_PAGE and change state', () => {
+    expect(
+      reducer(state, {
+        type: 'GO_TO_NEXT_PAGE',
+        dispatch,
+        pagination,
+        nextPage : true
+      })
+    ).toEqual(Object.assign({}, state, {page : state.page + 1, stateChanged: false}))
+  })
+
+  it('should return GO_TO_PREVIOUS_PAGE and change state', () => {
+    expect(
+      reducer(state, {
+        type: 'GO_TO_PREVIOUS_PAGE',
+        dispatch,
+        pagination,
+        nextPage : false
+      })
+    ).toEqual(Object.assign({}, state, {page : state.page - 1, stateChanged: false}))
+  })
+})
+
+
+describe('pagination reducer, given parameters not allowing to go to previous page', () => {
+
+  beforeEach(()=>{
+    state.page = 1
+    pagination.page = 1
+  })
+
+  it('should return GO_TO_PREVIOUS_PAGE and not change state', () => {
+    expect(
+      reducer(state, {
+        type: 'GO_TO_PREVIOUS_PAGE',
+        dispatch,
+        pagination,
+        nextPage : false
+      })
+    ).toEqual(state)
+  })
+})
+
+describe('pagination reducer, given parameters not allowing to go to next page', () => {
+
+  beforeEach(()=>{
+    state.page = 3
+    pagination.page = 3
+  })
+
+  it('should return GO_TO_NEXT_PAGE and not change state', () => {
+    expect(
+      reducer(state, {
+        type: 'GO_TO_NEXT_PAGE',
+        dispatch,
+        pagination,
+        nextPage : true
+      })
+    ).toEqual(state)
+  })
+})