Fix tests on node 20

.github/workflows/test.yml

@@ -28,6 +28,8 @@ jobs:
           - 14
           - 16
           - 18
+          - 20
+          - 22
 
     steps:
       - name: Clone repository

lib/binding.js

@@ -44,7 +44,7 @@ function maybeCallback(callback, ctx, thisArg, func) {
   let err = null;
   let val;
 
-  if (kUsePromises && callback === kUsePromises) {
+  if (usePromises(callback)) {
     // support nodejs v10+ fs.promises
     try {
       val = func.call(thisArg);
@@ -86,6 +86,10 @@ function maybeCallback(callback, ctx, thisArg, func) {
   }
 }
 
+function usePromises(callback) {
+  return kUsePromises && callback === kUsePromises;
+}
+
 /**
  * set syscall property on context object, only for nodejs v10+.
  * @param {object} ctx Context object (optional), only for nodejs v10+.
@@ -306,6 +310,17 @@ Binding.prototype.stat = function (filepath, bigint, callback, ctx) {
   });
 };
 
+/**
+ * Stat an item.
+ * @param {string} filepath Path.
+ * @param {boolean} bigint Use BigInt.
+ * @param {object} ctx Context object (optional), only for nodejs v10+.
+ * @return {Float64Array|BigUint64Array|undefined} Stats or undefined if sync.
+ */
+Binding.prototype.statSync = function (filepath, bigint, ctx) {
+  return this.stat(filepath, bigint, undefined, ctx);
+};
+
 /**
  * Stat an item.
  * @param {number} fd File descriptor.
@@ -341,6 +356,16 @@ Binding.prototype.close = function (fd, callback, ctx) {
   });
 };
 
+/**
+ * Close a file descriptor.
+ * @param {number} fd File descriptor.
+ * @param {object} ctx Context object (optional), only for nodejs v10+.
+ * @return {*} The return.
+ */
+Binding.prototype.closeSync = function (fd, ctx) {
+  return this.close(fd, undefined, ctx);
+};
+
 /**
  * Open and possibly create a file.
  * @param {string} pathname File path.
@@ -355,7 +380,7 @@ Binding.prototype.open = function (pathname, flags, mode, callback, ctx) {
 
   return maybeCallback(normalizeCallback(callback), ctx, this, function () {
     pathname = deBuffer(pathname);
-    const descriptor = new FileDescriptor(flags);
+    const descriptor = new FileDescriptor(flags, usePromises(callback));
     let item = this._system.getItem(pathname);
     while (item instanceof SymbolicLink) {
       item = this._system.getItem(
@@ -410,6 +435,18 @@ Binding.prototype.open = function (pathname, flags, mode, callback, ctx) {
   });
 };
 
+/**
+ * Open and possibly create a file.
+ * @param {string} pathname File path.
+ * @param {number} flags Flags.
+ * @param {number} mode Mode.
+ * @param {object} ctx Context object (optional), only for nodejs v10+.
+ * @return {string} File descriptor.
+ */
+Binding.prototype.openSync = function (pathname, flags, mode, ctx) {
+  return this.open(pathname, flags, mode, undefined, ctx);
+};
+
 /**
  * Open a file handler. A new api in nodejs v10+ for fs.promises
  * @param {string} pathname File path.
@@ -531,6 +568,18 @@ Binding.prototype.copyFile = function (src, dest, flags, callback, ctx) {
   });
 };
 
+/**
+ * Write to a file descriptor given a buffer.
+ * @param {string} src Source file.
+ * @param {string} dest Destination file.
+ * @param {number} flags Modifiers for copy operation.
+ * @param {object} ctx Context object (optional), only for nodejs v10+.
+ * @return {*} The return if no callback is provided.
+ */
+Binding.prototype.copyFileSync = function (src, dest, flags, ctx) {
+  return this.copyFile(src, dest, flags, undefined, ctx);
+};
+
 /**
  * Write to a file descriptor given a buffer.
  * @param {string} fd File descriptor.
@@ -632,7 +681,12 @@ Binding.prototype.writeBuffer = function (
     );
     file.setContent(content);
     descriptor.setPosition(newLength);
-    return written;
+    // If we're in fs.promises / FileHandle we need to return a promise
+    // Both fs.promises.open().then(fd => fs.write())
+    // and fs.openSync().writeSync() use this function
+    // without a callback, so we have to check if  the descriptor was opened
+    // with kUsePromises
+    return descriptor.isPromise() ? Promise.resolve(written) : written;
   });
 };
 
@@ -722,6 +776,17 @@ Binding.prototype.rename = function (oldPath, newPath, callback, ctx) {
   });
 };
 
+/**
+ * Rename a file.
+ * @param {string} oldPath Old pathname.
+ * @param {string} newPath New pathname.
+ * @param {object} ctx Context object (optional), only for nodejs v10+.
+ * @return {undefined}
+ */
+Binding.prototype.renameSync = function (oldPath, newPath, ctx) {
+  return this.rename(oldPath, newPath, undefined, ctx);
+};
+
 /**
  * Read a directory.
  * @param {string} dirpath Path to directory.
@@ -779,6 +844,43 @@ Binding.prototype.readdir = function (
   });
 };
 
+/**
+ * Read file as utf8 string.
+ * @param {string} name file to write.
+ * @param {number} flags Flags.
+ * @return {string} the file content.
+ */
+Binding.prototype.readFileUtf8 = function (name, flags) {
+  const fd = this.open(name, flags);
+  const descriptor = this.getDescriptorById(fd);
+
+  if (!descriptor.isRead()) {
+    throw new FSError('EBADF');
+  }
+  const file = descriptor.getItem();
+  if (file instanceof Directory) {
+    throw new FSError('EISDIR');
+  }
+  if (!(file instanceof File)) {
+    // deleted or not a regular file
+    throw new FSError('EBADF');
+  }
+  const content = file.getContent();
+  return content.toString('utf8');
+};
+
+/**
+ * Write a utf8 string.
+ * @param {string} filepath file to write.
+ * @param {string} data data to write to filepath.
+ * @param {number} flags Flags.
+ * @param {number} mode Mode.
+ */
+Binding.prototype.writeFileUtf8 = function (filepath, data, flags, mode) {
+  const destFd = this.open(filepath, flags, mode);
+  this.writeBuffer(destFd, data, 0, data.length);
+};
+
 /**
  * Create a directory.
  * @param {string} pathname Path to new directory.
@@ -1059,6 +1161,16 @@ Binding.prototype.unlink = function (pathname, callback, ctx) {
   });
 };
 
+/**
+ * Delete a named item.
+ * @param {string} pathname Path to item.
+ * @param {object} ctx Context object (optional), only for nodejs v10+.
+ * @return {*} The return if no callback is provided.
+ */
+Binding.prototype.unlinkSync = function (pathname, ctx) {
+  return this.unlink(pathname, undefined, ctx);
+};
+
 /**
  * Update timestamps.
  * @param {string} pathname Path to item.
@@ -1241,6 +1353,18 @@ Binding.prototype.symlink = function (srcPath, destPath, type, callback, ctx) {
   });
 };
 
+/**
+ * Create a symbolic link.
+ * @param {string} srcPath Path from link to the source file.
+ * @param {string} destPath Path for the generated link.
+ * @param {string} type Ignored (used for Windows only).
+ * @param {object} ctx Context object (optional), only for nodejs v10+.
+ * @return {*} The return if no callback is provided.
+ */
+Binding.prototype.symlinkSync = function (srcPath, destPath, type, ctx) {
+  return this.symlink(srcPath, destPath, type, undefined, ctx);
+};
+
 /**
  * Read the contents of a symbolic link.
  * @param {string} pathname Path to symbolic link.
@@ -1338,6 +1462,51 @@ Binding.prototype.access = function (filepath, mode, callback, ctx) {
   });
 };
 
+/**
+ * Tests user permissions.
+ * @param {string} filepath Path.
+ * @param {number} mode Mode.
+ * @param {object} ctx Context object (optional), only for nodejs v10+.
+ * @return {*} The return if no callback is provided.
+ */
+Binding.prototype.accessSync = function (filepath, mode, ctx) {
+  return this.access(filepath, mode, undefined, ctx);
+};
+
+/**
+ * Tests whether or not the given path exists.
+ * @param {string} filepath Path.
+ * @param {function(Error)} callback Callback (optional).
+ * @param {object} ctx Context object (optional), only for nodejs v10+.
+ * @return {*} The return if no callback is provided.
+ */
+Binding.prototype.exists = function (filepath, callback, ctx) {
+  markSyscall(ctx, 'exists');
+
+  return maybeCallback(normalizeCallback(callback), ctx, this, function () {
+    filepath = deBuffer(filepath);
+    const item = this._system.getItem(filepath);
+
+    if (item) {
+      if (item instanceof SymbolicLink) {
+        return this.exists(item.getPath(), callback, ctx);
+      }
+      return true;
+    }
+    return false;
+  });
+};
+
+/**
+ * Tests whether or not the given path exists.
+ * @param {string} filepath Path.
+ * @param {object} ctx Context object (optional), only for nodejs v10+.
+ * @return {*} The return if no callback is provided.
+ */
+Binding.prototype.existsSync = function (filepath, ctx) {
+  return this.exists(filepath, undefined, ctx);
+};
+
 /**
  * Not yet implemented.
  * @type {function()}

lib/descriptor.js

@@ -5,9 +5,10 @@ const constants = require('constants');
 /**
  * Create a new file descriptor.
  * @param {number} flags Flags.
+ * @param {boolean} isPromise descriptor was opened via fs.promises
  * @class
  */
-function FileDescriptor(flags) {
+function FileDescriptor(flags, isPromise = false) {
   /**
    * Flags.
    * @type {number}
@@ -25,6 +26,8 @@ function FileDescriptor(flags) {
    * @type {number}
    */
   this._position = 0;
+
+  this._isPromise = isPromise;
 }
 
 /**
@@ -110,6 +113,14 @@ FileDescriptor.prototype.isExclusive = function () {
   return (this._flags & constants.O_EXCL) === constants.O_EXCL;
 };
 
+/**
+ * Check if the file descriptor was opened as a promise
+ * @return {boolean} Opened from fs.promise
+ */
+FileDescriptor.prototype.isPromise = function () {
+  return this._isPromise;
+};
+
 /**
  * Export the constructor.
  * @type {function()}

lib/filesystem.js

@@ -264,15 +264,23 @@ FileSystem.file = function (config) {
     }
     if (config.hasOwnProperty('atime')) {
       file.setATime(config.atime);
+    } else if (config.hasOwnProperty('atimeMs')) {
+      file.setATime(new Date(config.atimeMs));
     }
     if (config.hasOwnProperty('ctime')) {
       file.setCTime(config.ctime);
+    } else if (config.hasOwnProperty('ctimeMs')) {
+      file.setCTime(new Date(config.ctimeMs));
     }
     if (config.hasOwnProperty('mtime')) {
       file.setMTime(config.mtime);
+    } else if (config.hasOwnProperty('mtimeMs')) {
+      file.setMTime(new Date(config.mtimeMs));
     }
     if (config.hasOwnProperty('birthtime')) {
       file.setBirthtime(config.birthtime);
+    } else if (config.hasOwnProperty('birthtimeMs')) {
+      file.setBirthtime(new Date(config.birthtimeMs));
     }
     return file;
   };
@@ -305,15 +313,23 @@ FileSystem.symlink = function (config) {
     }
     if (config.hasOwnProperty('atime')) {
       link.setATime(config.atime);
+    } else if (config.hasOwnProperty('atimeMs')) {
+      link.setATime(new Date(config.atimeMs));
     }
     if (config.hasOwnProperty('ctime')) {
       link.setCTime(config.ctime);
+    } else if (config.hasOwnProperty('ctimeMs')) {
+      link.setCTime(new Date(config.ctimeMs));
     }
     if (config.hasOwnProperty('mtime')) {
       link.setMTime(config.mtime);
+    } else if (config.hasOwnProperty('mtimeMs')) {
+      link.setMTime(new Date(config.mtimeMs));
     }
     if (config.hasOwnProperty('birthtime')) {
       link.setBirthtime(config.birthtime);
+    } else if (config.hasOwnProperty('birthtimeMs')) {
+      link.setBirthtime(new Date(config.birthtimeMs));
     }
     return link;
   };
@@ -344,15 +360,23 @@ FileSystem.directory = function (config) {
     }
     if (config.hasOwnProperty('atime')) {
       dir.setATime(config.atime);
+    } else if (config.hasOwnProperty('atimeMs')) {
+      dir.setATime(new Date(config.atimeMs));
     }
     if (config.hasOwnProperty('ctime')) {
       dir.setCTime(config.ctime);
+    } else if (config.hasOwnProperty('ctimeMs')) {
+      dir.setCTime(new Date(config.ctimeMs));
     }
     if (config.hasOwnProperty('mtime')) {
       dir.setMTime(config.mtime);
+    } else if (config.hasOwnProperty('mtimeMs')) {
+      dir.setMTime(new Date(config.mtimeMs));
     }
     if (config.hasOwnProperty('birthtime')) {
       dir.setBirthtime(config.birthtime);
+    } else if (config.hasOwnProperty('birthtimeMs')) {
+      dir.setBirthtime(new Date(config.birthtimeMs));
     }
     return dir;
   };

test/lib/bypass.spec.js

@@ -13,7 +13,7 @@ describe('mock.bypass()', () => {
   it('runs a synchronous function using the real filesystem', () => {
     mock({'/path/to/file': 'content'});
 
-    assert.equal(fs.readFileSync('/path/to/file', 'utf8'), 'content');
+    assert.equal(fs.readFileSync('/path/to/file', 'utf-8'), 'content');
     assert.isNotOk(fs.existsSync(__filename));
     assert.isOk(mock.bypass(() => fs.existsSync(__filename)));