init

tests/lib/issue.test.ts

@@ -0,0 +1,57 @@
+import { describe, it, expect } from "vitest"
+import * as fs from "fs"
+import { parseIssue, validateStatusTransition } from "../../lib/issue"
+
+describe("parseIssue", () => {
+  it("parses all required fields", () => {
+    const raw = fs.readFileSync("tests/_mocks/todo-basic.txt", "utf-8")
+    const issueText = raw.split("Content-Type: application/issue")[1]
+    const issue = parseIssue(issueText)
+
+    expect(issue.id).toBe(1)
+    expect(issue.type).toBe("feature")
+    expect(issue.status).toBe("open")
+    expect(issue.priority).toBe("high")
+    expect(issue.description).toContain("Implement streaming JSON parser.")
+  })
+
+  it("parses empty relationships", () => {
+    const raw = `
+ID: 2
+Type: bugfix
+Title: T
+Status: open
+Priority: low
+Created: 2026-02-01
+Relationships:
+Description: X
+`
+    const issue = parseIssue(raw)
+    expect(issue.relationships).toEqual({})
+  })
+})
+
+describe("validateStatusTransition", () => {
+  it("allows valid transitions", () => {
+    expect(validateStatusTransition("open", "in-progress")).toBeNull()
+    expect(validateStatusTransition("open", "hold")).toBeNull()
+    expect(validateStatusTransition("open", "cancelled")).toBeNull()
+    expect(validateStatusTransition("in-progress", "done")).toBeNull()
+    expect(validateStatusTransition("in-progress", "open")).toBeNull()
+    expect(validateStatusTransition("done", "open")).toBeNull()
+    expect(validateStatusTransition("cancelled", "open")).toBeNull()
+    expect(validateStatusTransition("hold", "in-progress")).toBeNull()
+  })
+
+  it("rejects invalid transitions", () => {
+    expect(validateStatusTransition("open", "done")).not.toBeNull()
+    expect(validateStatusTransition("done", "in-progress")).not.toBeNull()
+    expect(validateStatusTransition("done", "cancelled")).not.toBeNull()
+    expect(validateStatusTransition("cancelled", "done")).not.toBeNull()
+  })
+
+  it("allows no-op (same status)", () => {
+    expect(validateStatusTransition("open", "open")).toBeNull()
+    expect(validateStatusTransition("done", "done")).toBeNull()
+  })
+})