testing out the validateAndMask() function, with console.log's...

package-lock.json

@@ -3278,12 +3278,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -3298,17 +3300,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -3425,7 +3430,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -3437,6 +3443,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -3451,6 +3458,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -3458,12 +3466,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.1",
             "yallist": "^3.0.0"
@@ -3482,6 +3492,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -3562,7 +3573,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -3574,6 +3586,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -3695,6 +3708,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",

src/filesystem/implementation.js

@@ -1623,8 +1623,16 @@ function open(fs, context, path, flags, mode, callback) {
    *    callback = makeCallback(callback);
    * }
   */
-
-  callback = arguments[arguments.length - 1];
+   if (arguments.length == 5){
+      callback = arguments[arguments.length - 1];
+    }
+    else {
+      //need to test this validateAndMakeMode
+      console.log("open'd mode: " + mode)
+      mode = validateAndMaskMode(mode, FULL_READ_WRITE_EXEC_PERMISSIONS, callback);
+      console.log("mask'd mode: " + mode)
+    }
+    
   if(!pathCheck(path, callback)) return;
 
   function check_result(error, fileNode) {
@@ -1913,12 +1921,15 @@ function isUint32(value) {
 // Validator for mode_t (the S_* constants). Valid numbers or octal strings
 // will be masked with 0o777 to be consistent with the behavior in POSIX APIs.
 function validateAndMaskMode(value, def, callback) {
+  console.log("Passed in mode: " + value)
   if(typeof def === 'function') {
     callback = def;
     def = undefined;
   }
 
   if (isUint32(value)) {
+    let newMode = value & FULL_READ_WRITE_EXEC_PERMISSIONS;
+    console.log("Masked mode: " + newMode)
     return value & FULL_READ_WRITE_EXEC_PERMISSIONS;
   }
 
@@ -1939,6 +1950,7 @@ function validateAndMaskMode(value, def, callback) {
       return false;
     }
     var parsed = parseInt(value, 8);
+    console.log("Parsed + Masekd mode: " + parsed & FULL_READ_WRITE_EXEC_PERMISSIONS)
     return parsed & FULL_READ_WRITE_EXEC_PERMISSIONS;
   }
 

tests/spec/fs.open.spec.js

@@ -106,6 +106,22 @@ describe('fs.open', function() {
     });
   });
 
+  it('should create a new file when flagged for write, and set the mode', function(done) {
+    var fs = util.fs();
+
+    fs.open('/myfile', 'w', 644, function(error) {
+      if(error) throw error;
+      
+      fs.stat('/myfile', function(error, result) {
+        expect(error).not.to.exist;
+        expect(result).to.exist;
+        expect(result.type).to.equal('FILE');
+        expect(result.mode).to.exist;
+        expect(result.mode).to.equal(33188)
+        done();
+      });
+    });
+  });
   /**
    * This test is currently correct per our code, but incorrect according to the spec.
    * When we fix https://github.com/filerjs/filer/issues/314 we'll have to update this.