chore: tests for hoppscotch-cli (#2300)

Co-authored-by: Andrew Bastin <andrewbastin.k@gmail.com>

packages/hoppscotch-cli/src/__tests__/functions/mutators/parseCollectionData.spec.ts

@@ -0,0 +1,36 @@
+import { HoppCLIError } from "../../../types/errors";
+import { parseCollectionData } from "../../../utils/mutators";
+
+describe("parseCollectionData", () => {
+  test("Reading non-existing file.", () => {
+    return expect(
+      parseCollectionData("./src/__tests__/samples/notexist.txt")()
+    ).resolves.toSubsetEqualLeft(<HoppCLIError>{
+      code: "UNKNOWN_ERROR",
+    });
+  });
+
+  test("Unparseable JSON contents.", () => {
+    return expect(
+      parseCollectionData("./src/__tests__/samples/malformed-collection.json")()
+    ).resolves.toSubsetEqualLeft(<HoppCLIError>{
+      code: "MALFORMED_COLLECTION",
+    });
+  });
+
+  test("Invalid HoppCollection.", () => {
+    return expect(
+      parseCollectionData(
+        "./src/__tests__/samples/malformed-collection2.json"
+      )()
+    ).resolves.toSubsetEqualLeft(<HoppCLIError>{
+      code: "MALFORMED_COLLECTION",
+    });
+  });
+
+  test("Valid HoppCollection.", () => {
+    return expect(
+      parseCollectionData("./src/__tests__/samples/passes.json")()
+    ).resolves.toBeRight();
+  });
+});