Alexey Protsenko
--- a/picodata/cli.yml
+++ b/picodata/cli.yml
        - data-dir:
            long: data-dir
-            help: Here instance persists all its data
+            help: >
+                Here instance persists all its data
+                (default: .)
            takes_value: true
-            default_value: "."
            value_name: path

        - listen:
            # short: l
            long: listen
-            help: Socket bind address
+            help: >
+                Socket bind address (default: 3301)
--- a/tests/cli.rs
+++ b/tests/cli.rs
    cmd.current_dir(temp_path);
    cmd.arg("run");
-    cmd.args(["-e", "os.exit()"]);
+    cmd.arg("-e").arg(
+        r#"
+        function assert_eq(l, r)
+            if l ~= r then
+                error(('Assertion failed: %q ~= %q'):format(l, r), 2)
+            end
+        end
+        assert_eq(os.environ()['PICODATA_LISTEN'], "3301")
+        assert_eq(os.environ()['PICODATA_DATA_DIR'], ".")
+        os.exit()
+        "#,
+    );
    cmd.timeout(Duration::from_secs(1)).assert().success();