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test.js
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test.js
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var __Error__ = Error;
var xerr = require('./xerr');
var assert = require('assert');
assert.ok(xerr !== Error, 'XERR diff Error');
assert.ok(Error === __Error__, 'Error be clean');
Error = xerr;
assert.strictEqual(xerr, Error, 'XERR instead Error');
assert.ok(Error !== __Error__, 'Error be Invaded');
function f4() {
try {
f4.a();
} catch (err) {
throw Error('f4 throw');
}
}
function f3() {
try {
f4();
} catch (err) {
throw new Error('f3 call f4 err', err, {
name: 'F3Error'
});
}
}
function f2() {
try {
f3();
} catch (err) {
var e = new Error('f2 call f3 err', {
name: 'F2Error'
});
throw e;
}
}
Error('test');
assert.throws(()=>{
f4();
},
(err)=>{
var s = err.stack.split('\n');
var sL = s.splice(1,1)[0];
return sL.trim() === 'at f4 (D:\\GitHub\\xerr\\test.js:19:9)';
},
'not show XERR line'
);
assert.throws(()=>{
f3();
},
(err)=>{
var s = err.stack.toString();
return !!~s.indexOf('f4 throw');
},
'f3 stack has f4 err'
);
assert.throws(()=>{
f2();
},
(err)=>{
var s = err.name === 'F2Error';
return s;
},
'discriminate args 2 is obj'
);
Error = xerr.__ERROR__;
assert.ok(xerr !== __Error__, 'XERR diff Error');
assert.ok(Error === __Error__, 'Error be clean');
assert.throws(()=>{
f3();
},
(err)=>{
var s = err.stack.toString();
return !~s.indexOf('f4 throw');
},
'f3 stack not has f4 err'
);
var xerr2 = require('./xerr');
assert.ok(xerr2 !== Error, 'XERR diff Error');
assert.ok(Error === __Error__, 'Error be clean');
assert.ok(xerr === xerr2, 'req be xerr');
for (let i in require.cache) {
delete require.cache[i];
}
var clearBack = require('./xerr');
assert.ok(xerr2 !== Error, 'XERR diff Error');
assert.ok(Error === __Error__, 'Error be clean');
assert.ok(clearBack === xerr2, 'clearBack be xerr');
var xerr3 = Error.__XERR__;
assert.strictEqual(xerr3, xerr, 'XERR instead Error');
xerr.__ERROR__ = 'bad';
assert.strictEqual(xerr.__ERROR__, __Error__, '__ERROR__ is Error');
console.log('test ok !');