feat: The Big One UI

test/pages/simpleProgram/SimpleProgram.tsx

@@ -0,0 +1,83 @@
+import { render, screen, fireEvent } from "@testing-library/react";
+import SimpleProgram from "../../../src/pages/SimpleProgram/SimpleProgram";
+import useProgramStore from "../../../src/utils/programStore";
+
+/**
+ * Helper to preload the program store before rendering.
+ */
+function loadProgram(phases: Record<string, unknown>[]) {
+  useProgramStore.getState().setProgramState({ phases });
+}
+
+describe("SimpleProgram", () => {
+  beforeEach(() => {
+    loadProgram([]);
+  });
+
+  test("shows empty state when no program is loaded", () => {
+    render(<SimpleProgram />);
+    expect(screen.getByText("No program loaded.")).toBeInTheDocument();
+  });
+
+  test("renders first phase content", () => {
+    loadProgram([
+      {
+        id: "phase-1",
+        norms: [{ id: "n1", norm: "Be polite" }],
+        goals: [{ id: "g1", description: "Finish task", achieved: true }],
+        triggers: [{ id: "t1", label: "Keyword trigger" }],
+      },
+    ]);
+
+    render(<SimpleProgram />);
+
+    expect(screen.getByText("Phase 1 / 1")).toBeInTheDocument();
+    expect(screen.getByText("Be polite")).toBeInTheDocument();
+    expect(screen.getByText("Finish task")).toBeInTheDocument();
+    expect(screen.getByText("Keyword trigger")).toBeInTheDocument();
+  });
+
+  test("allows navigating between phases", () => {
+    loadProgram([
+      {
+        id: "phase-1",
+        norms: [],
+        goals: [],
+        triggers: [],
+      },
+      {
+        id: "phase-2",
+        norms: [{ id: "n2", norm: "Be careful" }],
+        goals: [],
+        triggers: [],
+      },
+    ]);
+
+    render(<SimpleProgram />);
+
+    expect(screen.getByText("Phase 1 / 2")).toBeInTheDocument();
+
+    fireEvent.click(screen.getByText("Next ▶"));
+
+    expect(screen.getByText("Phase 2 / 2")).toBeInTheDocument();
+    expect(screen.getByText("Be careful")).toBeInTheDocument();
+  });
+
+  test("prev button is disabled on first phase", () => {
+    loadProgram([
+      { id: "phase-1", norms: [], goals: [], triggers: [] },
+    ]);
+
+    render(<SimpleProgram />);
+    expect(screen.getByText("◀ Prev")).toBeDisabled();
+  });
+
+  test("next button is disabled on last phase", () => {
+    loadProgram([
+      { id: "phase-1", norms: [], goals: [], triggers: [] },
+    ]);
+
+    render(<SimpleProgram />);
+    expect(screen.getByText("Next ▶")).toBeDisabled();
+  });
+});