Carlos Florêncio
89 lines
2.8 KiB
TypeScript
89 lines
2.8 KiB
TypeScript
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
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import { waitForHealth, waitForUrlReady } from "./health";
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type ProcState = { exitCode: number | null };
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const fetchMock = vi.fn();
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describe("waitForUrlReady", () => {
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beforeEach(() => {
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fetchMock.mockReset();
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vi.stubGlobal("fetch", fetchMock);
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});
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afterEach(() => {
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vi.unstubAllGlobals();
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});
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it("returns once web URL is reachable", async () => {
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const proc: ProcState = { exitCode: null };
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fetchMock
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.mockRejectedValueOnce(new Error("ECONNREFUSED"))
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.mockResolvedValue({ status: 404 } as Response);
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await expect(waitForUrlReady("http://localhost:3000", proc, 1000)).resolves.toBeUndefined();
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expect(fetchMock).toHaveBeenCalledTimes(2);
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});
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it("fails when process exits before URL becomes reachable", async () => {
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const proc: ProcState = { exitCode: 1 };
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fetchMock.mockRejectedValue(new Error("ECONNREFUSED"));
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await expect(waitForUrlReady("http://localhost:3000", proc, 1000)).rejects.toThrow(
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"Web process exited before URL became reachable",
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);
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});
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it("fails on timeout when URL stays unreachable", async () => {
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const proc: ProcState = { exitCode: null };
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fetchMock.mockRejectedValue(new Error("ECONNREFUSED"));
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await expect(waitForUrlReady("http://localhost:3000", proc, 120)).rejects.toThrow(
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"Web URL readiness timed out",
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);
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});
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});
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describe("waitForHealth", () => {
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beforeEach(() => {
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fetchMock.mockReset();
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vi.stubGlobal("fetch", fetchMock);
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});
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afterEach(() => {
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vi.unstubAllGlobals();
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});
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it("returns once /health responds ok", async () => {
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const proc: ProcState = { exitCode: null };
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fetchMock
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.mockRejectedValueOnce(new Error("ECONNREFUSED"))
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.mockResolvedValue({ ok: true } as Response);
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await expect(waitForHealth("http://localhost:8080", proc, 1000)).resolves.toBeUndefined();
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});
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it("includes the exit code and invokes onFailure when backend exits early", async () => {
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const proc: ProcState = { exitCode: 2 };
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fetchMock.mockRejectedValue(new Error("ECONNREFUSED"));
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const onFailure = vi.fn();
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await expect(waitForHealth("http://localhost:8080", proc, 1000, onFailure)).rejects.toThrow(
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"Backend exited (code 2) before healthcheck passed",
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);
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expect(onFailure).toHaveBeenCalledTimes(1);
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});
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it("timeout error mentions the health URL and the env override, and invokes onFailure", async () => {
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const proc: ProcState = { exitCode: null };
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fetchMock.mockRejectedValue(new Error("ECONNREFUSED"));
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const onFailure = vi.fn();
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await expect(waitForHealth("http://localhost:8080", proc, 120, onFailure)).rejects.toThrow(
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/http:\/\/localhost:8080\/health.*KANDEV_HEALTH_TIMEOUT_MS/s,
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);
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expect(onFailure).toHaveBeenCalledTimes(1);
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});
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});
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