chore: Artifact Visualization Tests

src/components/shared/ReactFlow/FlowCanvas/TaskNode/TaskOverview/IOSection/IOCell/ArtifactVisualizer/ArtifactVisualizer.test.tsx

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+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { render, screen, waitFor } from "@testing-library/react";
+import { userEvent } from "@testing-library/user-event";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+import type { ArtifactNodeResponse } from "@/api/types.gen";
+
+import ArtifactVisualizer from "./ArtifactVisualizer";
+
+vi.mock("@/providers/BackendProvider", () => ({
+  useBackend: () => ({ backendUrl: "http://localhost:8000" }),
+}));
+
+vi.mock("@/services/executionService", () => ({
+  getArtifactSignedUrl: vi.fn().mockResolvedValue({
+    signed_url: "https://storage.example.com/signed",
+  }),
+}));
+
+vi.mock("./TextVisualizer", () => ({
+  TextVisualizerValue: ({ value }: { value: string }) => (
+    <div data-testid="text-visualizer" data-value={value} />
+  ),
+  TextVisualizerRemote: ({ signedUrl }: { signedUrl: string }) => (
+    <div data-testid="text-visualizer" data-signed-url={signedUrl} />
+  ),
+}));
+
+vi.mock("./ImageVisualizer", () => ({
+  default: ({ src, name }: { src: string; name: string }) => (
+    <div data-testid="image-visualizer" data-src={src} data-name={name} />
+  ),
+}));
+
+vi.mock("./CsvVisualizer", () => ({
+  CsvVisualizerValue: ({ value }: { value: string }) => (
+    <div data-testid="csv-visualizer" data-value={value} />
+  ),
+  CsvVisualizerRemote: ({ signedUrl }: { signedUrl: string }) => (
+    <div data-testid="csv-visualizer" data-signed-url={signedUrl} />
+  ),
+}));
+
+vi.mock("./JsonVisualizer", () => ({
+  JsonVisualizerValue: ({ value, name }: { value: string; name: string }) => (
+    <div data-testid="json-visualizer" data-value={value} data-name={name} />
+  ),
+  JsonVisualizerRemote: ({
+    signedUrl,
+    name,
+  }: {
+    signedUrl: string;
+    name: string;
+  }) => (
+    <div
+      data-testid="json-visualizer"
+      data-signed-url={signedUrl}
+      data-name={name}
+    />
+  ),
+}));
+
+vi.mock("./ParquetVisualizer", () => ({
+  default: ({ signedUrl }: { signedUrl: string }) => (
+    <div data-testid="parquet-visualizer" data-signed-url={signedUrl} />
+  ),
+}));
+
+const queryClient = new QueryClient({
+  defaultOptions: { queries: { retry: false } },
+});
+
+const renderWithQuery = (ui: React.ReactElement) =>
+  render(<QueryClientProvider client={queryClient}>{ui}</QueryClientProvider>);
+
+const makeArtifact = (
+  overrides?: Partial<ArtifactNodeResponse>,
+): ArtifactNodeResponse => ({
+  id: "artifact-1",
+  artifact_data: { total_size: 1024, is_dir: false },
+  ...overrides,
+});
+
+beforeEach(() => {
+  queryClient.clear();
+});
+
+describe("ArtifactVisualizer", () => {
+  describe("trigger button", () => {
+    it("renders Eye + Preview button when no value is provided", () => {
+      renderWithQuery(
+        <ArtifactVisualizer
+          artifact={makeArtifact()}
+          name="output"
+          type="text"
+        />,
+      );
+
+      expect(screen.getByText("Preview")).toBeInTheDocument();
+    });
+
+    it("renders Maximize2 button when value is provided", () => {
+      renderWithQuery(
+        <ArtifactVisualizer
+          artifact={makeArtifact()}
+          name="output"
+          type="text"
+          value="inline content"
+        />,
+      );
+
+      expect(screen.queryByText("Preview")).not.toBeInTheDocument();
+      // The maximize button should be present (ghost button without text)
+      expect(screen.getByRole("button")).toBeInTheDocument();
+    });
+  });
+
+  it("returns null for non-visualizable types", () => {
+    const { container } = renderWithQuery(
+      <ArtifactVisualizer
+        artifact={makeArtifact()}
+        name="output"
+        type="Unknown"
+      />,
+    );
+
+    expect(container.innerHTML).toBe("");
+  });
+
+  describe("inline value rendering", () => {
+    it("renders TextVisualizerValue for text type", async () => {
+      renderWithQuery(
+        <ArtifactVisualizer
+          artifact={makeArtifact()}
+          name="output"
+          type="text"
+          value="hello"
+        />,
+      );
+
+      await userEvent.click(screen.getByRole("button"));
+
+      await waitFor(() => {
+        const viz = screen.getByTestId("text-visualizer");
+        expect(viz).toHaveAttribute("data-value", "hello");
+      });
+    });
+
+    it("renders CsvVisualizerValue for csv type", async () => {
+      renderWithQuery(
+        <ArtifactVisualizer
+          artifact={makeArtifact()}
+          name="data"
+          type="CSV"
+          value={"a,b\n1,2"}
+        />,
+      );
+
+      await userEvent.click(screen.getByRole("button"));
+
+      await waitFor(() => {
+        const viz = screen.getByTestId("csv-visualizer");
+        expect(viz).toHaveAttribute("data-value", "a,b\n1,2");
+      });
+    });
+
+    it("renders CsvVisualizerValue for tsv type", async () => {
+      renderWithQuery(
+        <ArtifactVisualizer
+          artifact={makeArtifact()}
+          name="data"
+          type="TSV"
+          value={"a\tb\n1\t2"}
+        />,
+      );
+
+      await userEvent.click(screen.getByRole("button"));
+
+      await waitFor(() => {
+        const viz = screen.getByTestId("csv-visualizer");
+        expect(viz).toHaveAttribute("data-value", "a\tb\n1\t2");
+      });
+    });
+
+    it("renders JsonVisualizerValue for jsonobject type", async () => {
+      renderWithQuery(
+        <ArtifactVisualizer
+          artifact={makeArtifact()}
+          name="config"
+          type="JsonObject"
+          value='{"key":"val"}'
+        />,
+      );
+
+      await userEvent.click(screen.getByRole("button"));
+
+      await waitFor(() => {
+        const viz = screen.getByTestId("json-visualizer");
+        expect(viz).toHaveAttribute("data-value", '{"key":"val"}');
+      });
+    });
+  });
+
+  describe("signed URL rendering", () => {
+    it("renders TextVisualizerRemote with signedUrl for text type", async () => {
+      renderWithQuery(
+        <ArtifactVisualizer artifact={makeArtifact()} name="log" type="text" />,
+      );
+
+      await userEvent.click(screen.getByText("Preview"));
+
+      await waitFor(() => {
+        const viz = screen.getByTestId("text-visualizer");
+        expect(viz).toHaveAttribute(
+          "data-signed-url",
+          "https://storage.example.com/signed",
+        );
+      });
+    });
+
+    it("renders ImageVisualizer for image type", async () => {
+      renderWithQuery(
+        <ArtifactVisualizer
+          artifact={makeArtifact()}
+          name="photo"
+          type="image"
+        />,
+      );
+
+      await userEvent.click(screen.getByText("Preview"));
+
+      await waitFor(() => {
+        expect(screen.getByTestId("image-visualizer")).toBeInTheDocument();
+      });
+    });
+
+    it("renders ParquetVisualizer for apacheparquet type", async () => {
+      renderWithQuery(
+        <ArtifactVisualizer
+          artifact={makeArtifact()}
+          name="data"
+          type="Apache Parquet"
+        />,
+      );
+
+      await userEvent.click(screen.getByText("Preview"));
+
+      await waitFor(() => {
+        expect(screen.getByTestId("parquet-visualizer")).toBeInTheDocument();
+      });
+    });
+  });
+
+  describe("dialog header", () => {
+    it("shows artifact name and type in dialog", async () => {
+      renderWithQuery(
+        <ArtifactVisualizer
+          artifact={makeArtifact()}
+          name="my-output"
+          type="CSV"
+          value="a,b"
+        />,
+      );
+
+      await userEvent.click(screen.getByRole("button"));
+
+      await waitFor(() => {
+        expect(screen.getByText("my-output")).toBeInTheDocument();
+        expect(screen.getByText("CSV")).toBeInTheDocument();
+      });
+    });
+
+    it("shows artifact URI when available", async () => {
+      renderWithQuery(
+        <ArtifactVisualizer
+          artifact={makeArtifact({
+            artifact_data: {
+              total_size: 100,
+              is_dir: false,
+              uri: "gs://bucket/path",
+            },
+          })}
+          name="output"
+          type="text"
+          value="content"
+        />,
+      );
+
+      await userEvent.click(screen.getByRole("button"));
+
+      await waitFor(() => {
+        expect(screen.getByText("Copy URI")).toBeInTheDocument();
+      });
+    });
+  });
+});