add -ver integration test

test/integration.js

@@ -0,0 +1,21 @@
+const fs = require("node:fs");
+const cp = require("node:child_process");
+const assert = require("node:assert");
+
+describe("spawned exiftool", () => {
+  it("-ver", () => {
+    const path = require("..");
+    const child = cp.spawnSync(path, ["-ver"]);
+    const ver = child.stdout.toString().trim();
+    console.log({ version: ver });
+    assert(
+      /^\d\d\.\d\d$/.test(ver),
+      "version is expected to be MAJOR.MINOR but was " + JSON.stringify(ver),
+    );
+    const stderr = child.stderr.toString();
+    assert(
+      stderr === "",
+      "stderr is expected to be empty but was " + JSON.stringify(stderr),
+    );
+  });
+});

test/path-exists.js

@@ -1,5 +1,5 @@
-const fs = require("fs");
-var assert = require("assert");
+const fs = require("node:fs");
+const assert = require("node:assert");
 
 describe("exported path", () => {
   it("is a valid path to a file", () => {