koa-lite/test/application/onerror.js

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'use strict';
const stderr = require('test-console').stderr;
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const Koa = require('../..');
const AssertionError = require('assert').AssertionError;
describe('app.onerror(err)', function(){
it('should throw an error if a non-error is given', function(done){
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const app = new Koa();
try {
app.onerror('foo');
should.fail();
} catch (err) {
err.should.be.instanceOf(AssertionError);
err.message.should.equal('non-error thrown: foo');
}
done();
})
it('should do nothing if status is 404', function(done){
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const app = new Koa();
const err = new Error();
err.status = 404;
const output = stderr.inspectSync(function() {
app.onerror(err);
});
output.should.eql([]);
done();
})
it('should do nothing if .silent', function(done){
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const app = new Koa();
app.silent = true;
const err = new Error();
const output = stderr.inspectSync(function() {
app.onerror(err);
});
output.should.eql([]);
done();
})
it('should log the error to stderr', function(done){
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const app = new Koa();
app.env = 'dev';
const err = new Error();
err.stack = 'Foo';
const output = stderr.inspectSync(function() {
app.onerror(err);
});
output.should.eql(["\n", " Foo\n", "\n"]);
done();
})
it('should use err.toString() instad of err.stack', function(done){
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const app = new Koa();
app.env = 'dev';
const err = new Error('mock stack null');
err.stack = null;
const output = stderr.inspectSync(function() {
app.onerror(err);
});
output.should.eql(["\n", " Error: mock stack null\n", "\n"]);
done();
})
})