Initial Commit

packages/api-stack/api/api-graphql/src/federation/parse-sdl.test.ts

@@ -0,0 +1,62 @@
+import { describe, expect, it } from "@suaveplan/testing/runner";
+import { parseSdl, stripCommentsAndDescriptions } from "./parse-sdl.js";
+
+describe("parseSdl", () => {
+    it("recognises type and extend blocks", { timeout: 5000 }, () => {
+        const blocks = parseSdl(
+            "type Invoice { id: ID! } extend type Query { invoices: [Invoice!]! }"
+        );
+        expect(blocks).toHaveLength(2);
+        expect(blocks[0]?.kind).toBe("type");
+        expect(blocks[0]?.typeName).toBe("Invoice");
+        expect(blocks[1]?.kind).toBe("extend");
+        expect(blocks[1]?.typeName).toBe("Query");
+    });
+
+    it("extracts field names", { timeout: 5000 }, () => {
+        const blocks = parseSdl(`
+            type Invoice {
+                id: ID!
+                total: Int!
+                lines(limit: Int): [Line!]!
+            }
+        `);
+        expect(blocks[0]?.fields).toEqual(["id", "total", "lines"]);
+    });
+
+    it("strips comments before parsing", { timeout: 5000 }, () => {
+        const blocks = parseSdl(`
+            # leading comment
+            type Q {
+                a: Int! # inline comment
+            }
+        `);
+        expect(blocks[0]?.fields).toEqual(["a"]);
+    });
+
+    it("strips block-string descriptions", { timeout: 5000 }, () => {
+        const stripped = stripCommentsAndDescriptions(
+            '"""description""" type X { a: Int! }'
+        );
+        expect(stripped).not.toContain("description");
+        expect(stripped).toContain("type X");
+    });
+
+    it("ignores empty bodies gracefully", { timeout: 5000 }, () => {
+        const blocks = parseSdl("type X { }");
+        expect(blocks[0]?.fields).toEqual([]);
+    });
+
+    it("handles implements clause", { timeout: 5000 }, () => {
+        const blocks = parseSdl(
+            "type Invoice implements Node & Audited { id: ID! }"
+        );
+        expect(blocks[0]?.typeName).toBe("Invoice");
+        expect(blocks[0]?.fields).toEqual(["id"]);
+    });
+
+    it("returns empty list for non-type SDL", { timeout: 5000 }, () => {
+        const blocks = parseSdl("scalar DateTime");
+        expect(blocks).toEqual([]);
+    });
+});