[PM-6556] reintroduce policy reduction for multi-org accounts (#8409)

libs/common/src/tools/generator/passphrase/passphrase-generator-policy.spec.ts

@@ -0,0 +1,51 @@
+import { PolicyType } from "../../../admin-console/enums";
+// FIXME: use index.ts imports once policy abstractions and models
+// implement ADR-0002
+import { Policy } from "../../../admin-console/models/domain/policy";
+import { PolicyId } from "../../../types/guid";
+
+import { DisabledPassphraseGeneratorPolicy, leastPrivilege } from "./passphrase-generator-policy";
+
+function createPolicy(
+  data: any,
+  type: PolicyType = PolicyType.PasswordGenerator,
+  enabled: boolean = true,
+) {
+  return new Policy({
+    id: "id" as PolicyId,
+    organizationId: "organizationId",
+    data,
+    enabled,
+    type,
+  });
+}
+
+describe("leastPrivilege", () => {
+  it("should return the accumulator when the policy type does not apply", () => {
+    const policy = createPolicy({}, PolicyType.RequireSso);
+
+    const result = leastPrivilege(DisabledPassphraseGeneratorPolicy, policy);
+
+    expect(result).toEqual(DisabledPassphraseGeneratorPolicy);
+  });
+
+  it("should return the accumulator when the policy is not enabled", () => {
+    const policy = createPolicy({}, PolicyType.PasswordGenerator, false);
+
+    const result = leastPrivilege(DisabledPassphraseGeneratorPolicy, policy);
+
+    expect(result).toEqual(DisabledPassphraseGeneratorPolicy);
+  });
+
+  it.each([
+    ["minNumberWords", 10],
+    ["capitalize", true],
+    ["includeNumber", true],
+  ])("should take the %p from the policy", (input, value) => {
+    const policy = createPolicy({ [input]: value });
+
+    const result = leastPrivilege(DisabledPassphraseGeneratorPolicy, policy);
+
+    expect(result).toEqual({ ...DisabledPassphraseGeneratorPolicy, [input]: value });
+  });
+});