Add more end-to-end tests

e2e/modals.spec.ts

@@ -91,7 +91,17 @@ describe("modals", () => {
       ).shouldEqual(before - 1);
     });
 
-    test.skip("public source", () => {});
+    test("public source", async () => {
+      await when.addPublicSource();
+      await then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+        sources: {
+          openmaptiles: {
+            type: "vector",
+            url: `https://api.maptiler.com/tiles/v3-openmaptiles/tiles.json?key=${tokens.openmaptiles}`,
+          },
+        },
+      });
+    });
 
     test("add new source", async () => {
       const sourceId = "n1z2v3r";
@@ -327,10 +337,6 @@ describe("modals", () => {
     });
   });
 
-  describe("sources placeholder", () => {
-    test.skip("toggle", () => {});
-  });
-
   describe("global state", () => {
     beforeEach(async () => {
       await when.click("nav:global-state");