Add e2e test for dataset paths

frontend/javascripts/test/backend-snapshot-tests/__snapshots__/datasets.e2e.ts.snap

@@ -1,5 +1,33 @@
 // Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
 
+exports[`Dataset API (E2E) > Dataset Paths 1`] = `
+[
+  {
+    "layerName": "segmentation",
+    "magLinkInfos": [
+      {
+        "linkedMags": [],
+        "mag": {
+          "dataLayerName": "segmentation",
+          "dataSourceId": {
+            "name": "test-dataset",
+            "team": "Organization_X",
+          },
+          "hasLocalData": true,
+          "mag": [
+            1,
+            1,
+            1,
+          ],
+          "path": "Organization_X/test-dataset/segmentation/1/",
+          "realPath": "Organization_X/test-dataset/segmentation/1/",
+        },
+      },
+    ],
+  },
+]
+`;
+
 exports[`Dataset API (E2E) > Zarr 3 streaming 1`] = `"{"zarr_format":3,"node_type":"group","attributes":{"ome":{"version":"0.5","multiscales":[{"name":"segmentation","axes":[{"name":"c","type":"channel"},{"name":"x","type":"space","unit":"nanometer"},{"name":"y","type":"space","unit":"nanometer"},{"name":"z","type":"space","unit":"nanometer"}],"datasets":[{"path":"1","coordinateTransformations":[{"type":"scale","scale":[1,11.24,11.24,28]}]}]}]}}}"`;
 
 exports[`Dataset API (E2E) > Zarr 3 streaming 2`] = `"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAEAAAABAAAAAQAAAAEAAAABAAAAAQAAAAEAAAABAAAAAQAAAAEAAAABAAAAAQAAAAEAAAA="`;

frontend/javascripts/test/backend-snapshot-tests/datasets.e2e.ts

@@ -138,6 +138,37 @@ describe("Dataset API (E2E)", () => {
     expect(base64).toMatchSnapshot();
   });
 
+  it("Dataset Paths", async () => {
+    const paths = await fetch(
+      "/api/datastores/localhost/datasources/Organization_X/test-dataset/paths?key=something-secure",
+    );
+    const pathsJson = await paths.json();
+
+    // Dataset paths are absolute, we will relativize them here to make the snapshot stable
+    const makeRelative = (path: string) =>
+      path.split("Organization_X")[1] ? "Organization_X" + path.split("Organization_X")[1] : path;
+
+    interface MagLink {
+      mag: {
+        path: string;
+        realPath: string;
+      };
+    }
+
+    interface PathInfo {
+      magLinkInfos: MagLink[];
+    }
+
+    pathsJson.forEach((pathInfo: PathInfo) =>
+      pathInfo.magLinkInfos.forEach((magLink: MagLink) => {
+        magLink.mag.path = makeRelative(magLink.mag.path);
+        magLink.mag.realPath = makeRelative(magLink.mag.realPath);
+      }),
+    );
+
+    expect(pathsJson).toMatchSnapshot();
+  });
+
   /**
    * WARNING: This test creates a side effect by uploading and saving a dataset in your binaryData folder.
    * There is no clean up after the test, and the dataset will remain after each test run.