add gs

RCCService2018/content/LuaPackages/PurchasePrompt/createEnum.spec.lua

@@ -0,0 +1,66 @@
+return function()
+	local createEnum = require(script.Parent.createEnum)
+
+	describe("validation rules", function()
+		it("should throw errors if given invalid values", function()
+			expect(function()
+				createEnum(1, {})
+			end).to.throw()
+
+			expect(function()
+				createEnum("MyEnum", "not a table")
+			end).to.throw()
+		end)
+
+		it("should throw errors if provided table contains invalid values", function()
+			expect(function()
+				createEnum("IllegalShadowing", {
+					"isMember",
+				})
+			end).to.throw()
+
+			expect(function()
+				createEnum("MyEnum", {
+					"Test",
+					12,
+				})
+			end)
+		end)
+	end)
+
+	describe("enum properties", function()
+		it("should have a reasonable string format for debugging", function()
+			local MyEnum = createEnum("MyEnum", {
+				"Value",
+			})
+
+			expect(tostring(MyEnum.Value)).to.equal("MyEnum.Value")
+		end)
+
+		it("should provide an isMember function to check membership", function()
+			local MyEnum = createEnum("MyEnum", {
+				"Value",
+			})
+
+			expect(MyEnum.isMember(MyEnum.Value)).to.equal(true)
+			expect(MyEnum.isMember(newproxy(true))).to.equal(false)
+			expect(MyEnum.isMember("Value")).to.equal(false)
+		end)
+
+		it("should generate objects that are unique even when named the same", function()
+
+			local Enum1 = createEnum("MyEnum", {
+				"Value",
+			})
+			local Enum2 = createEnum("MyEnum", {
+				"Value",
+			})
+
+			expect(Enum1.isMember(Enum1.Value)).to.equal(true)
+			expect(Enum2.isMember(Enum2.Value)).to.equal(true)
+
+			expect(Enum1.isMember(Enum2.Value)).to.equal(false)
+			expect(Enum2.isMember(Enum1.Value)).to.equal(false)
+		end)
+	end)
+end