fasterror - npm Package Compare versions

Comparing version 1.0.0 to 1.1.0

index.js

@@ -7,5 +7,11 @@ var util = require('util');
   function FastError() {
-    this.message = util.format.apply(null, arguments);
     this.name = name;
-    Error.captureStackTrace(this, arguments.callee);
+
+    if (arguments[0] && arguments[0] instanceof Error) {
+      this.message = arguments[0].message;
+      this.stack = arguments[0].stack.replace(arguments[0].name, name);
+    } else {
+      this.message = util.format.apply(null, arguments);
+      Error.captureStackTrace(this, arguments.callee);
+    }
   }
@@ -12,0 +18,0 @@

package.json

 {
   "name": "fasterror",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "description": "Quickly create custom error objects.",
@@ -5,0 +5,0 @@ "main": "index.js",

test/error.test.js

@@ -45,2 +45,20 @@ var fasterror = require('../index');
 });
+test('[error constructor] should copy message and stack from constructing error', function(assert) {
+    var MyError = fasterror('MyError');
+    var sourceErr = new TypeError('bad type');
+    var err = new MyError(sourceErr);
+    assert.equal(err.message, 'bad type');
+    assert.ok(err.stack.match(/^MyError: bad type/));
+    // Is set to 47:21 to indicate it came from the `TypeError` line
+    assert.ok(err.stack.match(/error.test.js:47:21/));
+    assert.end();
+});
+test('[error constructor] should set default code for constructing error', function(assert) {
+    var MyError = fasterror('MyError', {code: 'code'});
+    var sourceErr = new TypeError('bad type');
+    var err = new MyError(sourceErr);
+    assert.equal(err.message, 'bad type');
+    assert.equal(err.code, 'code');
+    assert.end();
+});
 
@@ -47,0 +65,0 @@ test('[error object] should perform string interpolation on provided arguments', function(assert) {

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Improved metrics

Total package byte prevSize

5230

increased by23.67%

Lines of code

97

increased by31.08%

Worsened metrics

Number of medium supply chain risk alerts

1

increased byInfinity%

No dependency changes