Tests

test/calculateAction.02_FetchDifferentCSV.test.js

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+/**
+ * @jest-environment jsdom
+ */
+
+const fs = require("fs");
+const path = require("path");
+
+describe("calculate() Snapshot Tests", () => {
+
+    let calculate;
+    let snapshotFile;
+
+    beforeEach(() => {
+
+        // Standard: irgendeine Datei setzen, falls Test nichts setzt
+        snapshotFile = "snapshot_default.csv";
+
+        // DOM erzeugen
+        document.body.innerHTML = `
+            <textarea id="analysis-log"></textarea>
+        `;
+
+        // Fetch dynamisch mocken
+        global.fetch = jest.fn(async () => {
+
+            const csvPath = path.join(__dirname, "snapshots", snapshotFile);
+            const csvContent = fs.readFileSync(csvPath, "utf8");
+
+            return {
+                ok: true,
+                headers: { get: () => "text/csv" },
+                text: async () => csvContent
+            };
+        });
+
+        // Modul erst JETZT laden (DOM existiert)
+        ({ calculate } = require("../public/calculateActions.js"));
+    });
+
+    // ✅ Beispiel 1: Die Datei aus deiner Frage
+    test("Snapshot 1774805028717 wird korrekt geladen", async () => {
+
+        snapshotFile = "snapshot_video0_1774805028717_two_cam.csv";
+
+        await calculate();
+
+        expect(global.fetch).toHaveBeenCalledWith("/api/latest-snapshot");
+
+        const logValue = document.getElementById("analysis-log").value;
+        expect(logValue).toMatch(/Starte Berechnung/);
+        expect(logValue).toMatch(/CSV-Daten geladen/);
+    });
+
+    
+    test("Snapshot 1774805028717 wird korrekt geladen", async () => {
+
+        snapshotFile = "snapshot_video0_1774805686335_two_cam.csv";
+
+        await calculate();
+
+        expect(global.fetch).toHaveBeenCalledWith("/api/latest-snapshot");
+
+        const logValue = document.getElementById("analysis-log").value;
+        console.log("Log Value:", logValue);
+        //expect(logValue).toMatch(/Starte Berechnung/);
+        //expect(logValue).toMatch(/CSV-Daten geladen/);
+    });
+
+});