can1357
2d7cd6d2de
- Replaced bare `A B` range headers with `replace N..M:`, `delete N..M`, `insert before N:`, `insert after N:`, `insert head:`, and `insert tail:`. - Removed `&A..B` repeat rows; insert-before/after ops now express the same intent explicitly. - Empty replace bodies now error instead of deleting; `delete` is the canonical deletion op. - Updated grammar, prompt, docs, tests, and all call sites to the new syntax.
103 lines
4.2 KiB
TypeScript
103 lines
4.2 KiB
TypeScript
import { describe, expect, it } from "bun:test";
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import { applyEdits, parsePatch } from "@oh-my-pi/hashline";
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function applyPatch(text: string, diff: string): string {
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return applyEdits(text, parsePatch(diff).edits).text;
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}
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const FILE = "a\nb\nc\nd\ne";
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describe("hashline core — verb header forms", () => {
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it("rejects a bare single-number hunk header with verb guidance", () => {
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expect(() => parsePatch("2\n+B")).toThrow(/hunk headers need a verb/);
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});
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it("rejects a bare numeric range with verb guidance", () => {
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expect(() => parsePatch("2 3\n+X")).toThrow(/Hunk headers need a verb/);
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});
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it("accepts canonical replace/delete/insert forms", () => {
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expect(applyPatch(FILE, "replace 2..3:\n+X")).toBe("a\nX\nd\ne");
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expect(applyPatch(FILE, "delete 2..3")).toBe("a\nd\ne");
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expect(applyPatch(FILE, "insert before 2:\n+X")).toBe("a\nX\nb\nc\nd\ne");
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expect(applyPatch(FILE, "insert after 2:\n+X")).toBe("a\nb\nX\nc\nd\ne");
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expect(applyPatch(FILE, "insert head:\n+X")).toBe("X\na\nb\nc\nd\ne");
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expect(applyPatch(FILE, "insert tail:\n+X")).toBe("a\nb\nc\nd\ne\nX");
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});
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it("accepts single-number replace and delete shorthand", () => {
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expect(applyPatch(FILE, "replace 2:\n+X")).toBe("a\nX\nc\nd\ne");
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expect(applyPatch(FILE, "delete 2")).toBe("a\nc\nd\ne");
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});
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it("accepts alternate replace range separators and missing colon", () => {
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expect(applyPatch(FILE, "replace 2-3:\n+X")).toBe("a\nX\nd\ne");
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expect(applyPatch(FILE, "replace 2\u20263:\n+X")).toBe("a\nX\nd\ne");
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expect(applyPatch(FILE, "replace 2 3:\n+X")).toBe("a\nX\nd\ne");
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expect(applyPatch(FILE, "replace 2..3\n+X")).toBe("a\nX\nd\ne");
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});
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it("accepts missing colon on insert headers", () => {
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expect(applyPatch(FILE, "insert before 2\n+X")).toBe("a\nX\nb\nc\nd\ne");
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expect(applyPatch(FILE, "insert head\n+X")).toBe("X\na\nb\nc\nd\ne");
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});
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});
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describe("hashline body contracts", () => {
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it("auto-pipes a bare body row while warning", () => {
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const result = parsePatch("replace 2..2:\n hello");
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expect(applyEdits(FILE, result.edits).text).toBe("a\n hello\nc\nd\ne");
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expect(result.warnings.some(w => /Auto-prefixed bare body row/.test(w))).toBe(true);
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});
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it("rejects `-` body rows with a teaching error", () => {
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expect(() => parsePatch("replace 2..2:\n-old\n+new")).toThrow(/`-` rows are not valid/);
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});
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it("allows literal text that begins with `-` or `+` when prefixed with `+`", () => {
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expect(applyPatch(FILE, "replace 2..2:\n+-literal\n++plus")).toBe("a\n-literal\n+plus\nc\nd\ne");
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});
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it("rejects empty replace and insert hunks", () => {
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expect(() => parsePatch("replace 2..2:")).toThrow(/To delete lines, use `delete/);
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expect(() => parsePatch("insert tail:")).toThrow(/`insert` needs/);
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});
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it("rejects delete with a body", () => {
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expect(() => parsePatch("delete 2\n+X")).toThrow(/does not take body rows/);
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});
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it("rejects delete with a colon", () => {
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expect(() => parsePatch("delete 2:\n+X")).toThrow(/has no colon/);
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});
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});
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describe("hashline — apply_patch / unified-diff contamination", () => {
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it("rejects apply_patch sentinels as contamination", () => {
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expect(() => parsePatch("*** Update File: a.ts\nreplace 2..2:\n+X")).toThrow(/apply_patch sentinel/);
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expect(() => parsePatch("*** Add File: a.ts\nreplace 2..2:\n+X")).toThrow(/apply_patch sentinel/);
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});
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it("rejects unified-diff hunk headers as contamination", () => {
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expect(() => parsePatch("@@ -1,3 +1,3 @@\nreplace 2..2:\n+X")).toThrow(/unified-diff hunk header/);
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});
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it("treats top-level `+TEXT` as an orphan literal payload", () => {
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expect(() => parsePatch("+const X = 1;\nreplace 2..2:")).toThrow(/payload line has no preceding hunk header/);
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});
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});
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describe("hashline apply — duplicate boundary payloads", () => {
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it("keeps replacement boundary echoes literal unless balance repair applies", () => {
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const text = ["// one", "// two", "old();"].join("\n");
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const diff = "replace 3..3:\n+// one\n+// two\n+new();";
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expect(applyPatch(text, diff)).toBe(["// one", "// two", "// one", "// two", "new();"].join("\n"));
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});
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it("keeps pure-insert context echoes literal", () => {
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const text = ["aaa", "bbb", "ccc"].join("\n");
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const diff = "insert tail:\n+bbb\n+ccc\n+NEW";
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expect(applyPatch(text, diff)).toBe("aaa\nbbb\nccc\nbbb\nccc\nNEW");
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});
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});
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