Closed svi3c closed 7 years ago
Can we get some code please?
Sure! The problem is that the issue occurs in a closed source project. I'll boil it down to the essentials when I've got time.
I believe I have the same error testing React. my karma.conf.js looks like this:
module.exports = function(config) {
config.set({
basePath: ".",
frameworks: ['jasmine', 'browserify'],
preprocessors: {
'tests/**/*.js': ['babel', 'browserify']
},
babelPreprocessor:{
options: {
presets: ['es2015'],
sourceMap: 'inline'
}
},
browserify: {
debug: true,
transform: [ 'babelify'],
configure: function(bundle){
bundle.on("prebundle", function(){
bundle.external("react/addons");
bundle.external("react/lib/ReactContext");
bundle.external("react/lib/ExecutionEnvironment");
});
}
},
reporters: ['spec'],
colors: true,
logLevel: config.LOG_INFO,
autoWatch: true,
browsers: ['PhantomJS'],
files: [
'tests/**/*.js'
]
});
};
My one and only test file has:
'use strict';
import React from 'react';
import {mount} from 'enzyme';
import sinon from 'sinon';
import Footer from '../src/js/components/Footer';
describe('<Footer/>', () => {
it('renders footer <Footer/> component', () => {
const wrapper = mount(<Footer/>);
console.log(wrapper);
expect(wrapper.find('.app_footer')).to.have.length(1);
});
});
Footer component has only one div with class name '.app_footer'. The error I get is this:
SourceMap position not found for trace: TypeError: undefined is not an object (evaluating 'expect(wrapper.find('.app_wrapper')).to.have') in http://localhost:9876/absolute/var/folders/wr/hkjbf_wd3tnf5j9t2p8ndnt40000gn/T/40f5d6b577f0f7e57a2eb4aabc9edf46.browserify?d01138ff9d27c662c126752a88873bdf74683625 (line 61603)
http://localhost:9876/absolute/var/folders/wr/hkjbf_wd3tnf5j9t2p8ndnt40000gn/T/40f5d6b577f0f7e57a2eb4aabc9edf46.browserify?d01138ff9d27c662c126752a88873bdf74683625:61603:42
@hazboun Can you provide us with a sample project that reproduces the issue?
Sample.zip This is my sample project. Btw, I only get that error when the test fails.
I got the same error.
Please use reactions to say "me too" instead of notifying everyone on a thread
This may not be specific to karma-browserify - I am using karma-webpack and am experiencing the same behavior.
That is what I thought, too. Did you find an upstream bug in TypeScript or a sourcemap library?
I have not tracked down the root cause in an upstream yet, but I am not using typescript, so that eliminates that possibility =-D
I have Typescript too and same error.
Any update on this?
I just had the same issue with Typescript 2.2.x
. I reverted to version 2.0.8
and the issue was fixed.
This is a bit random. But I had this issue. When I deleted a line that just has a ; on it the error disappeared.
I'm using typescript.
As indicated in the comments, this seems to be a TypeScript source map generation.
Can also happen if one of your typescript files has a compile error - in my case it was one of my test files as referenced by the error:
02 06 2017 15:16:54.630:WARN [reporter]: SourceMap position not found for trace: undefined PhantomJS 2.1.1 (Windows 7 0.0.0) ERROR { "line": 104034, "sourceURL": "src/test.ts", ....
I'm not using typescript and get this error. just regular source-map
.
I encountered this issue, and it turned out it is because I didn't use correct mode for webpack config in karma.conf.js
Solution karma.conf.js
webpack: {
mode: 'development',
version
"karma-sourcemap-loader": "^0.3.7",
"karma-webpack": "^4.0.2",
If you are using karma-sourcemap-loader
, try switching to karma-source-map-support
.
My case: Babel, no TypeScript, Webpack and not Browserify, I was using karma-sourcemap-loader
.
console.error()
to print stack traces without halting execution, there would be the same "SourceMap position not found for trace" noise, but console output for errors would not be mapped, line numbers referencing compiled bundles, not original sources.After switching, both use cases work perfectly fine, outputting mapped stack traces, no extra warnings.
This is likely not to be relevant to the OP's problem, but this issue comes up as the Google's top hit for "SourceMap position not found for trace", so I hope that'll help someone.
Hello,
I've got the following karma configuration:
When I get an error, the stack trace cannot be linked with the source maps:
Any Idea what's going wrong here?