Remove generated_mocha_test.res if file exists

Author: aspeddro

scripts/test.js

@@ -132,11 +132,21 @@ async function runTests() {
       console.log(`Skipping docstrings tests on ${process.platform}`);
     } else {
       console.log("Running runtime docstrings tests");
+
+      const generated_mocha_test_res = path.join("tests", "docstrings_examples", "generated_mocha_test.res")
+
+      // Remove `generated_mocha_test.res` if file exists
+      if (fs.existsSync(generated_mocha_test_res)) {
+        console.log(`Removing ${generated_mocha_test_res}`)
+        fs.unlinkSync(generated_mocha_test_res)
+      }
+
       cp.execSync(`${rescript_exe} build`, {
         cwd: path.join(__dirname, "..", "tests/docstrings_examples"),
         stdio: [0, 1, 2],
       });
 
+
       // Generate rescript file with all tests `generated_mocha_test.res`
       cp.execSync(`node ${path.join("tests", "docstrings_examples", "DocTest.res.mjs")}`, {
         cwd: path.join(__dirname, ".."),
@@ -151,7 +161,7 @@ async function runTests() {
 
       // Format generated_mocha_test.res
       console.log("Formatting generated_mocha_test.res")
-      cp.execSync(`./cli/rescript format ${path.join("tests", "docstrings_examples", "generated_mocha_test.res")}`, {
+      cp.execSync(`./cli/rescript format ${generated_mocha_test_res}`, {
         cwd: path.join(__dirname, ".."),
         stdio: [0, 1, 2],
       })