add gs

RCCService2021/ExtraContent/LuaPackages/AppTempCommon/LuaApp/Reducers/FetchingStatus.spec.lua

@@ -0,0 +1,52 @@
+return function()
+	local CorePackages = game:GetService("CorePackages")
+	local UpdateFetchingStatus = require(CorePackages.AppTempCommon.LuaApp.Actions.UpdateFetchingStatus)
+	local FetchingStatusReducer = require(CorePackages.AppTempCommon.LuaApp.Reducers.FetchingStatus)
+	local RetrievalStatus = require(CorePackages.AppTempCommon.LuaApp.Enum.RetrievalStatus)
+	local TableUtilities = require(CorePackages.AppTempCommon.LuaApp.TableUtilities)
+
+	local KEY_1 = "key_1"
+	local KEY_2 = "key_2"
+
+	describe("FetchingStatus", function()
+		it("should be empty by default", function()
+			local state = FetchingStatusReducer(nil, {})
+
+			expect(TableUtilities.FieldCount(state)).to.equal(0)
+		end)
+
+		it("should not be modified by other actions", function()
+			local oldState = FetchingStatusReducer(nil, {})
+			local newState = FetchingStatusReducer(oldState, { type = "not a real action" })
+
+			expect(newState).to.equal(oldState)
+		end)
+
+		it("should be changed using UpdateFetchingStatus", function()
+			local state = FetchingStatusReducer(nil, {})
+
+			state = FetchingStatusReducer(state, UpdateFetchingStatus(KEY_1, RetrievalStatus.Fetching))
+			expect(state[KEY_1]).to.equal(RetrievalStatus.Fetching)
+
+			state = FetchingStatusReducer(state, UpdateFetchingStatus(KEY_1, RetrievalStatus.Failed))
+			expect(state[KEY_1]).to.equal(RetrievalStatus.Failed)
+		end)
+
+		it("should store different values for different keys", function()
+			local state = FetchingStatusReducer(nil, {})
+
+			state = FetchingStatusReducer(state, UpdateFetchingStatus(KEY_1, RetrievalStatus.Failed))
+			state = FetchingStatusReducer(state, UpdateFetchingStatus(KEY_2, RetrievalStatus.Done))
+
+			expect(state[KEY_1]).to.equal(RetrievalStatus.Failed)
+			expect(state[KEY_2]).to.equal(RetrievalStatus.Done)
+		end)
+
+		it("should clear values for nil keys", function()
+			local state = { [KEY_1] = RetrievalStatus.Fetching }
+
+			state = FetchingStatusReducer(state, UpdateFetchingStatus(KEY_1, nil))
+			expect(state[KEY_1]).to.equal(nil)
+		end)
+	end)
+end