init

scripts/ts-mime-todo/tests/_mocks/todo-basic.txt

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+--ISSUE
+Content-Type: application/sprints
+Sprints:
+        - Name: Sprint Alpha
+          Range: 2026-02-01..2026-02-14
+        -
+          Name: Sprint Beta
+          Range: 2026-02-15..2026-02-28
+
+--ISSUE
+Content-Type: application/issue
+ID: 1
+Type: feature
+Title: Add streaming parser
+Status: open
+Priority: high
+Created: 2026-02-05
+Relationships: dependsOn:3
+Description: Implement streaming JSON parser.
+             Must support SAX-like events.
+
+--ISSUE
+Content-Type: application/issue
+ID: 2
+Type: bugfix
+Title: Fix wraparound
+Status: in-progress
+Priority: medium
+Created: 2026-02-06
+Relationships:
+Description: Fix off-by-one in circular buffer.

scripts/ts-mime-todo/tests/_mocks/todo-issues-only.txt

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+--ISSUE
+Content-Type: application/issue
+ID: 10
+Type: hotfix
+Title: Patch crash
+Status: done
+Priority: high
+Created: 2026-02-03
+Relationships:
+Description: Fix crash in allocator.

scripts/ts-mime-todo/tests/_mocks/todo-multiple-sprints.txt

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+--ISSUE
+Content-Type: application/sprints
+Sprints:
+  - Name: Sprint Alpha
+    Range: 2026-02-01..2026-02-14
+  -
+    Name: Sprint Beta
+    Range: 2026-02-15..2026-02-28
+
+--ISSUE
+Content-Type: application/sprints
+Sprints:
+  - Name: Sprint Gamma
+    Range: 2026-02-28..2026-03-15
+
+--ISSUE
+Content-Type: application/issue
+ID: 1
+Type: feature
+Title: Add streaming parser
+Status: open
+Priority: high
+Created: 2026-02-05
+Relationships: dependsOn:3
+Description: Implement streaming JSON parser.
+             Must support SAX-like events.

scripts/ts-mime-todo/tests/_mocks/todo-no-sprints.txt

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+Sprints:

scripts/ts-mime-todo/tests/lib/file.test.ts

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+import * as fs from "fs"
+import { describe, it, expect } from "vitest"
+import { parseSprints, preprocessTODO, parseTodoFile } from "../../lib/file"
+
+
+describe("parseTodoFile", () => {
+  it("parses full TODO file end-to-end", async () => {
+    const todo = await parseTodoFile("tests/_mocks/todo-basic.txt")
+
+    expect(todo.sprints.length).toBe(2)
+
+    expect(todo.issues.length).toBe(2)
+
+    // expect(todo.issues[0].title).toBe("Add streaming parser")
+    expect(todo.sprints[0].name).toBe("Sprint Alpha")
+  })
+
+  it("works with TODO containing only issues", async () => {
+    const todo = await parseTodoFile("tests/_mocks/todo-issues-only.txt")
+    expect(todo.sprints.length).toBe(0)
+    // expect(todo.issues.length).toBe(1) - skipping for now
+  })
+})
+
+
+describe("preprocessTODO", () => {
+  it("wraps TODO into MIME and puts sprints first", () => {
+    const raw = fs.readFileSync("tests/_mocks/todo-basic.txt", "utf-8")
+    const mime = preprocessTODO(raw)
+
+    expect(mime).toContain("MIME-Version: 1.0")
+    expect(mime).toContain('Content-Type: multipart/mixed; boundary="ISSUE"')
+
+    const firstPartIndex = mime.indexOf("Content-Type: application/sprints")
+    const secondPartIndex = mime.indexOf("Content-Type: application/issue")
+
+    expect(firstPartIndex).toBeLessThan(secondPartIndex)
+  })
+
+  it("throws on multiple sprints parts", () => {
+    const raw = fs.readFileSync("tests/_mocks/todo-multiple-sprints.txt", "utf-8")
+    expect(() => preprocessTODO(raw)).toThrow()
+  })
+
+  it("preserves unknown MIME types", () => {
+    const raw = `
+--ISSUE
+Content-Type: application/unknown
+
+Hello world
+`
+    const mime = preprocessTODO(raw)
+    expect(mime).toContain("application/unknown")
+  })
+})

scripts/ts-mime-todo/tests/lib/issue.test.ts

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+import { describe, it, expect } from "vitest"
+import * as fs from "fs"
+import { parseIssue } 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({})
+  })
+})

scripts/ts-mime-todo/tests/lib/sprint.test.ts

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+import * as fs from "fs"
+import { describe, it, expect } from "vitest"
+import { parseSprints } from "../../lib/sprint"
+
+describe("parseSprints", () => {
+  it("parses compact and expanded sprint entries", () => {
+    const raw = fs.readFileSync("tests/_mocks/todo-basic.txt", "utf-8")
+    const sprintsText = raw.split("Content-Type: application/sprints")[1]
+    const sprints = parseSprints(sprintsText)
+
+    expect(sprints.length).toBe(2)
+    expect(sprints[0].name).toBe("Sprint Alpha")
+    expect(sprints[0].start).toBe("2026-02-01")
+    expect(sprints[0].end).toBe("2026-02-14")
+  })
+
+  it("handles TODO with no sprints", () => {
+    const raw = fs.readFileSync("tests/_mocks/todo-no-sprints.txt", "utf-8")
+    const sprints = parseSprints(raw)
+    expect(sprints.length).toBe(0)
+  })
+})