Deno.test("description", async (t) => { const success = await t.step("step 1", async (t) => { await t.step("inner 1", () => {}); await t.step("inner 2", () => {}); }); if (!success) throw new Error("Expected the step to return true."); }); Deno.test("description function as first arg", async (t) => { const success = await t.step(async function step1(t) { await t.step(function inner1() {}); await t.step(function inner1() {}); }); if (!success) throw new Error("Expected the step to return true."); }); Deno.test("parallel steps without sanitizers", async (t) => { // allowed await Promise.all([ t.step({ name: "step 1", fn: async () => { await new Promise((resolve) => setTimeout(resolve, 10)); }, sanitizeOps: false, sanitizeResources: false, sanitizeExit: false, }), t.step({ name: "step 2", fn: async () => { await new Promise((resolve) => setTimeout(resolve, 10)); }, sanitizeOps: false, sanitizeResources: false, sanitizeExit: false, }), ]); }); Deno.test({ name: "parallel steps without sanitizers due to parent", fn: async (t) => { // allowed because parent disabled the sanitizers await Promise.all([ t.step("step 1", async () => { await new Promise((resolve) => setTimeout(resolve, 10)); }), t.step("step 2", async () => { await new Promise((resolve) => setTimeout(resolve, 10)); }), ]); }, sanitizeResources: false, sanitizeOps: false, sanitizeExit: false, }); Deno.test({ name: "steps with disabled sanitizers, then enabled, then parallel disabled", fn: async (t) => { await t.step("step 1", async (t) => { await t.step({ name: "step 1", fn: async (t) => { await Promise.all([ t.step({ name: "step 1", fn: async (t) => { await new Promise((resolve) => setTimeout(resolve, 10)); await Promise.all([ t.step("step 1", () => {}), t.step("step 1", () => {}), ]); }, sanitizeExit: false, sanitizeResources: false, sanitizeOps: false, }), t.step({ name: "step 2", fn: () => {}, sanitizeResources: false, sanitizeOps: false, sanitizeExit: false, }), ]); }, sanitizeResources: true, sanitizeOps: true, sanitizeExit: true, }); }); }, sanitizeResources: false, sanitizeOps: false, sanitizeExit: false, }); Deno.test("steps buffered then streaming reporting", async (t) => { // no sanitizers so this will be buffered await t.step({ name: "step 1", fn: async (t) => { // also ensure the buffered tests display in order regardless of the second one finishing first const step2Finished = Promise.withResolvers<void>(); const step1 = t.step("step 1 - 1", async () => { await step2Finished.promise; }); const step2 = t.step("step 1 - 2", async (t) => { await t.step("step 1 - 2 - 1", () => {}); }); await step2; step2Finished.resolve(); await step1; }, sanitizeResources: false, sanitizeOps: false, sanitizeExit: false, }); // now this will start streaming and we want to // ensure it flushes the buffer of the last test await t.step("step 2", async () => {}); });