release: WRNexusJS 0.8.0

packages/syntax/test/formatter.test.ts

@@ -0,0 +1,39 @@
+import { describe, expect, test } from "bun:test";
+import { formatWrn, parse } from "../src/index.ts";
+
+const options = {
+  insertSpaces: true,
+  tabSize: 2,
+  printWidth: 70,
+  multilineAttributes: true,
+} as const;
+
+describe("canonical WRN formatter", () => {
+  test("formats declarations, structured values, markup, and imports idempotently", () => {
+    const source = `import Card from "@/components/Card.wrn"
+component Demo {
+props { title: string = "Hello" items = [{ id: 1, label: "One" }] }
+view {
+<Card title='{title}' items='{items}' class="very-long-utility-name another-long-utility-name"><strong>{title}</strong></Card>
+}
+}`;
+    const formatted = formatWrn(source, options);
+
+    expect(formatted).toContain('import Card from "@/components/Card.wrn"');
+    expect(formatted).toContain('props {\n    title: string = "Hello"');
+    expect(formatted).toContain('items = [{ id: 1, label: "One" }]');
+    expect(formatted).toContain("<Card\n");
+    expect(formatWrn(formatted, options)).toBe(formatted);
+    expect(() => parse(formatted)).not.toThrow();
+  });
+
+  test("preserves comments and normalizes the final newline", () => {
+    const source = `// leading comment\r\npage Home {\r\nview { <!-- keep --> <p>Home</p> }\r\n}`;
+    const formatted = formatWrn(source, options);
+
+    expect(formatted.startsWith("// leading comment\n")).toBe(true);
+    expect(formatted).toContain("<!-- keep -->");
+    expect(formatted.endsWith("\n")).toBe(true);
+    expect(formatted).not.toContain("\r");
+  });
+});