test(helpers): ensure joining historyItem parts

lemredd · Jan 10, 2023 · 5b3c00e · 5b3c00e
1 parent c555f55
commit 5b3c00e
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/src/components/CalculatorContainer/HistoryContainer/helpers/joinHistoryItemParts.test.ts b/src/components/CalculatorContainer/HistoryContainer/helpers/joinHistoryItemParts.test.ts
@@ -0,0 +1,16 @@
+import { HistoryItem } from "@/types/history"
+
+import helper from "./joinHistoryItemParts"
+
+describe("Component helper: joinHistoryItemParts", () => {
+	it("should join history item parts into a string", () => {
+		const historyItem = {
+			"leftOperand": 1,
+			"operation": "+",
+			"rightOperand": 1
+		} as HistoryItem
+
+		const expectedReturnValue = `${historyItem.leftOperand} ${historyItem.operation} ${historyItem.rightOperand}`
+		expect(helper(historyItem)).toEqual(expectedReturnValue)
+	})
+})