feat(tests): add Deno-based tests for checking CLI functionality in the same-codebase between platforms.

src/apps/cli/testdeno/test-push-pull.ts

@@ -0,0 +1,64 @@
+/**
+ * Deno port of test-push-pull-linux.sh
+ *
+ * Requires CouchDB connection details either via environment variables or a
+ * .test.env file.  If neither is present the test logs a warning and the
+ * CLI will likely fail at the push step.
+ *
+ * Run:
+ *   deno test -A test-push-pull.ts
+ *
+ * With explicit CouchDB:
+ *   COUCHDB_URI=http://127.0.0.1:5984 \
+ *   COUCHDB_USER=admin \
+ *   COUCHDB_PASSWORD=password \
+ *   COUCHDB_DBNAME=livesync-test \
+ *   deno test -A test-push-pull.ts
+ */
+
+import { join } from "@std/path";
+import { assertEquals } from "@std/assert";
+import { TempDir } from "./helpers/temp.ts";
+import { runCliOrFail } from "./helpers/cli.ts";
+import { applyCouchdbSettings, initSettingsFile } from "./helpers/settings.ts";
+
+const REMOTE_PATH = Deno.env.get("REMOTE_PATH") ?? "test/push-pull.txt";
+
+Deno.test("push/pull roundtrip", async () => {
+    await using workDir = await TempDir.create("livesync-cli-push-pull");
+
+    const settingsFile = workDir.join("data.json");
+    const vaultDir = workDir.join("vault");
+    await Deno.mkdir(join(vaultDir, "test"), { recursive: true });
+
+    await initSettingsFile(settingsFile);
+
+    const uri = Deno.env.get("COUCHDB_URI") ?? "";
+    const user = Deno.env.get("COUCHDB_USER") ?? "";
+    const password = Deno.env.get("COUCHDB_PASSWORD") ?? "";
+    const dbname = Deno.env.get("COUCHDB_DBNAME") ?? "";
+
+    if (uri && user && password && dbname) {
+        console.log("[INFO] applying CouchDB env vars to settings");
+        await applyCouchdbSettings(settingsFile, uri, user, password, dbname);
+    } else {
+        console.warn(
+            "[WARN] CouchDB env vars not fully set — push/pull may fail unless the generated settings already contain connection details"
+        );
+    }
+
+    const srcFile = workDir.join("push-source.txt");
+    const pulledFile = workDir.join("pull-result.txt");
+    const content = `push-pull-test ${new Date().toISOString()}\n`;
+    await Deno.writeTextFile(srcFile, content);
+
+    console.log(`[INFO] push -> ${REMOTE_PATH}`);
+    await runCliOrFail(vaultDir, "--settings", settingsFile, "push", srcFile, REMOTE_PATH);
+
+    console.log(`[INFO] pull <- ${REMOTE_PATH}`);
+    await runCliOrFail(vaultDir, "--settings", settingsFile, "pull", REMOTE_PATH, pulledFile);
+
+    const pulled = await Deno.readTextFile(pulledFile);
+    assertEquals(content, pulled, "push/pull roundtrip content mismatch");
+    console.log("[PASS] push/pull roundtrip matched");
+});