1 files changed, 64 insertions, 0 deletions
diff --git a/tests/operations.test.ts b/tests/operations.test.ts
new file mode 100644
index 0000000..99357ea
--- /dev/null
+++ b/tests/operations.test.ts
@@ -0,0 +1,64 @@
+
+
+
+/*** IMPORT ------------------------------------------- ***/
+
+import { assertEquals } from "jsr:@std/assert@^1.0.0";
+
+/*** UTILITY ------------------------------------------ ***/
+
+import { deriveTitle, parseOperations } from "../source/library/graphql/operations.ts";
+
+/*** TESTS -------------------------------------------- ***/
+
+Deno.test("parseOperations returns empty for blank query", () => {
+  assertEquals(parseOperations(""), []);
+  assertEquals(parseOperations("   "), []);
+});
+
+Deno.test("parseOperations returns empty on syntax error", () => {
+  assertEquals(parseOperations("query { ..."), []);
+});
+
+Deno.test("parseOperations captures a single named query", () => {
+  const ops = parseOperations("query Foo { viewer { id } }");
+  assertEquals(ops, [{ name: "Foo", type: "query" }]);
+});
+
+Deno.test("parseOperations returns null name for anonymous ops", () => {
+  const ops = parseOperations("{ viewer { id } }");
+  assertEquals(ops, [{ name: null, type: "query" }]);
+});
+
+Deno.test("parseOperations captures multiple operations", () => {
+  const ops = parseOperations(`
+    query Foo { a }
+    mutation Bar { b }
+    subscription Baz { c }
+  `);
+  assertEquals(ops, [
+    { name: "Foo", type: "query" },
+    { name: "Bar", type: "mutation" },
+    { name: "Baz", type: "subscription" }
+  ]);
+});
+
+Deno.test("deriveTitle prefers the first operation name", () => {
+  const ops = parseOperations("query Foo { a }");
+  assertEquals(deriveTitle("query Foo { a }", ops), "Foo");
+});
+
+Deno.test("deriveTitle falls back to operation type", () => {
+  const ops = parseOperations("mutation { a }");
+  assertEquals(deriveTitle("mutation { a }", ops), "mutation");
+});
+
+Deno.test("deriveTitle falls back to the first 20 chars when unparsable", () => {
+  const query = "this is not valid graphql at all";
+  assertEquals(deriveTitle(query, parseOperations(query)), "this is not valid gr");
+});
+
+Deno.test("deriveTitle returns 'untitled' for empty input", () => {
+  assertEquals(deriveTitle("", []), "untitled");
+  assertEquals(deriveTitle("   ", []), "untitled");
+});