Test: Playwright tests for tmtv (#4331)

Co-authored-by: Ibrahim <93064150+IbrahimCSAE@users.noreply.github.com>
Co-authored-by: Ibrahim <ibrahim.mdev@gmail.com>

tests/utils/getTMTVModalityUnit.ts

@@ -0,0 +1,27 @@
+const getTMTVModalityUnit = async (page, attempts = 20) => {
+  for (let i = 0; i < attempts; i++) {
+    try {
+      const modalityUnit = await page.evaluate(
+        ({ cornerstoneTools }: AppTypes.Test) => {
+          const annotations = cornerstoneTools.annotation.state.getAllAnnotations();
+          const stats = annotations[0].data.cachedStats;
+          const targetIds = Object.keys(stats);
+          const targetStats = stats[targetIds[1]];
+          return targetStats.modalityUnit;
+        },
+        await page.evaluateHandle('window')
+      );
+
+      if (modalityUnit) {
+        return modalityUnit;
+      }
+    } catch (error) {
+      console.error('Failed to get modalityUnit', error);
+    }
+    await new Promise(resolve => setTimeout(resolve, 1000));
+  }
+
+  throw new Error('Failed to get modalityUnit after multiple attempts');
+};
+
+export { getTMTVModalityUnit };