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5b5c165e10
* Define matchers to test promise fulfillment These are useful for validating that promises depend on other events prior to fulfilling. * Expose custom matchers to jest projects Team-specific projects are not touched here to try and reduce review burden. * Block browser local operations awaiting reseed This should closes a narrow race condition resulting from storage operations during a reseed event. * Import from barrel file This might fix the failing test, but I'm not sure _why_ * Document helper methods * Validate as few properties as possible per test * Simplify expected value representation * Allow waiting in promise matchers * Specify resolution times in promise orchestration tests. * Test behavior triggering multiple reseeds. * Fix typo * Avoid testing implementation details * Clear reseed on startup in case a previous process was aborted in the middle of a reseed. * Correct formatting
87 lines
2.9 KiB
TypeScript
87 lines
2.9 KiB
TypeScript
describe("toBeFulfilled", () => {
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it("passes when promise is resolved", async () => {
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const promise = Promise.resolve("resolved");
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await promise;
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await expect(promise).toBeFulfilled();
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});
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it("passes when promise is rejected", async () => {
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const promise = Promise.reject("rejected");
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await promise.catch(() => {});
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await expect(promise).toBeFulfilled();
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});
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it("fails when promise is pending", async () => {
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const promise = new Promise((resolve) => setTimeout(resolve, 1000));
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await expect(promise).not.toBeFulfilled();
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});
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it("passes when the promise is fulfilled within the given time limit", async () => {
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const promise = new Promise((resolve) => setTimeout(resolve, 1));
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await expect(promise).toBeFulfilled(2);
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});
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it("passes when the promise is not fulfilled within the given time limit", async () => {
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const promise = new Promise((resolve) => setTimeout(resolve, 2));
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await expect(promise).not.toBeFulfilled(1);
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});
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});
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describe("toBeResolved", () => {
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it("passes when promise is resolved", async () => {
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const promise = Promise.resolve("resolved");
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await promise;
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await expect(promise).toBeResolved();
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});
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it("fails when promise is rejected", async () => {
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const promise = Promise.reject("rejected");
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await promise.catch(() => {});
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await expect(promise).not.toBeResolved();
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});
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it("fails when promise is pending", async () => {
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const promise = new Promise((resolve) => setTimeout(resolve, 1000));
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await expect(promise).not.toBeResolved();
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});
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it("passes when the promise is resolved within the given time limit", async () => {
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const promise = new Promise((resolve) => setTimeout(resolve, 1));
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await expect(promise).toBeResolved(2);
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});
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it("passes when the promise is not resolved within the given time limit", async () => {
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const promise = new Promise((resolve) => setTimeout(resolve, 2));
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await expect(promise).not.toBeResolved(1);
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});
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});
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describe("toBeRejected", () => {
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it("fails when promise is resolved", async () => {
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const promise = Promise.resolve("resolved");
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await promise;
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await expect(promise).not.toBeRejected();
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});
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it("passes when promise is rejected", async () => {
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const promise = Promise.reject("rejected");
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await promise.catch(() => {});
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await expect(promise).toBeRejected();
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});
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it("fails when promise is pending", async () => {
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const promise = new Promise((resolve) => setTimeout(resolve, 1000));
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await expect(promise).not.toBeRejected();
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});
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it("passes when the promise is resolved within the given time limit", async () => {
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const promise = new Promise((_, reject) => setTimeout(reject, 1));
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await expect(promise).toBeFulfilled(2);
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});
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it("passes when the promise is not resolved within the given time limit", async () => {
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const promise = new Promise((_, reject) => setTimeout(reject, 2));
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await expect(promise).not.toBeFulfilled(1);
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});
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});
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