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20e3daaaca
* test(frontend): migrate unit tests to rstest * docs: updates AGENTS.md * test(frontend): fix rstest lint formatting
107 lines
4.1 KiB
TypeScript
107 lines
4.1 KiB
TypeScript
import { expect, test } from "@rstest/core";
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import {
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capBlockquoteNesting,
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capListNesting,
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capMarkdownNesting,
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preprocessStreamdownMarkdown,
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} from "@/core/streamdown/preprocess";
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test("capBlockquoteNesting returns normal content unchanged", () => {
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const input = "# Title\n\n> a quote\n>> nested\n\nsome `code`";
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expect(capBlockquoteNesting(input)).toBe(input);
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});
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test("capBlockquoteNesting keeps nesting at or below the cap untouched", () => {
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const input = "> ".repeat(100) + "hi";
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expect(capBlockquoteNesting(input)).toBe(input);
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});
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test("capBlockquoteNesting caps pathological nesting and preserves content", () => {
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const result = capBlockquoteNesting("> ".repeat(5000) + "hi");
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expect((result.match(/>/g) ?? []).length).toBe(100);
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expect(result.endsWith("hi")).toBe(true);
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});
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test("capBlockquoteNesting handles markers without spaces", () => {
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const result = capBlockquoteNesting(">".repeat(5000) + "hi");
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expect((result.match(/>/g) ?? []).length).toBe(100);
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expect(result.endsWith("hi")).toBe(true);
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});
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test("capBlockquoteNesting leaves fenced code content untouched", () => {
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const literal = ">".repeat(150);
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const input = `${"> ".repeat(3000)}hi\n\`\`\`text\n${literal}\n\`\`\``;
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const result = capBlockquoteNesting(input);
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expect(result.split("\n")[2]).toBe(literal);
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});
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test("capBlockquoteNesting leaves indented code blocks untouched", () => {
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const literal = " " + ">".repeat(150);
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const input = `${"> ".repeat(3000)}hi\n\n${literal}`;
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const result = capBlockquoteNesting(input);
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expect(result.split("\n")[2]).toBe(literal);
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});
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test("capBlockquoteNesting only rewrites pathological lines", () => {
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const normal = "> normal quote";
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const deep = "> ".repeat(3000) + "deep";
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const result = capBlockquoteNesting(`${normal}\n${deep}\nplain`);
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const lines = result.split("\n");
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expect(lines[0]).toBe(normal);
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expect((lines[1]?.match(/>/g) ?? []).length).toBe(100);
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expect(lines[2]).toBe("plain");
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});
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test("capListNesting returns normally indented content unchanged", () => {
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const input = "- a\n - b\n - c\n\n code continuation";
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expect(capListNesting(input)).toBe(input);
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});
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test("capListNesting caps pathologically deep list indentation", () => {
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const deep = " ".repeat(2000) + "- x";
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const result = capListNesting(deep);
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const indent = /^[ \t]*/.exec(result)![0];
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expect(indent.length).toBe(200);
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expect(result.endsWith("- x")).toBe(true);
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});
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test("capListNesting leaves fenced code content untouched", () => {
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const literal = " ".repeat(400) + "deeply indented ascii art";
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const input = `\`\`\`text\n${literal}\n\`\`\``;
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expect(capListNesting(input).split("\n")[1]).toBe(literal);
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});
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// Outside a fence, deep indentation is capped regardless of blank-line context:
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// we cannot tell an indented-code line from deeply nested list content (both can
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// follow a blank line), and exempting either reopens the crash — blank-separated
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// deep-indent lists otherwise blow up marked just like contiguous ones.
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test("capListNesting caps deep indentation even after a blank line", () => {
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const input = `- a\n\n${" ".repeat(500)}- deep`;
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const lines = capListNesting(input).split("\n");
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expect(/^[ \t]*/.exec(lines[2]!)![0].length).toBe(200);
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});
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test("capListNesting only rewrites pathological lines", () => {
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const normal = " indented paragraph";
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const deep = " ".repeat(500) + "- deep";
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const result = capListNesting(`${normal}\n${deep}\nplain`);
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const lines = result.split("\n");
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expect(lines[0]).toBe(normal);
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expect(/^[ \t]*/.exec(lines[1]!)![0].length).toBe(200);
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expect(lines[2]).toBe("plain");
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});
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test("capMarkdownNesting caps both blockquote and list nesting", () => {
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const input = `${"> ".repeat(3000)}quote\n${" ".repeat(500)}- item`;
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const result = capMarkdownNesting(input);
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const lines = result.split("\n");
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expect((lines[0]?.match(/>/g) ?? []).length).toBe(100);
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expect(/^[ \t]*/.exec(lines[1]!)![0].length).toBe(200);
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});
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test("preprocessStreamdownMarkdown leaves non-mermaid content unchanged", () => {
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const input = "just some text";
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expect(preprocessStreamdownMarkdown(input)).toBe(input);
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});
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