overleaf/services/filestore/test/unit/js/SafeExecTests.js

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const chai = require('chai')
const should = chai.should()
const { expect } = chai
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const modulePath = '../../../app/js/SafeExec'
const SandboxedModule = require('sandboxed-module')
describe('SafeExec', function() {
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let settings, options, safeExec
beforeEach(function() {
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settings = { enableConversions: true }
options = { timeout: 10 * 1000, killSignal: 'SIGTERM' }
safeExec = SandboxedModule.require(modulePath, {
globals: { process },
requires: {
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'settings-sharelatex': settings
}
})
})
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describe('safeExec', function() {
it('should execute a valid command', function(done) {
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safeExec(['/bin/echo', 'hello'], options, (err, stdout, stderr) => {
stdout.should.equal('hello\n')
stderr.should.equal('')
should.not.exist(err)
done()
})
})
it('should error when conversions are disabled', function(done) {
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settings.enableConversions = false
safeExec(['/bin/echo', 'hello'], options, err => {
expect(err).to.exist
done()
})
})
it('should execute a command with non-zero exit status', function(done) {
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safeExec(['/usr/bin/env', 'false'], options, err => {
expect(err).to.exist
expect(err.name).to.equal('FailedCommandError')
expect(err.code).to.equal(1)
expect(err.stdout).to.equal('')
expect(err.stderr).to.equal('')
done()
})
})
it('should handle an invalid command', function(done) {
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safeExec(['/bin/foobar'], options, err => {
err.code.should.equal('ENOENT')
done()
})
})
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it('should handle a command that runs too long', function(done) {
safeExec(
['/bin/sleep', '10'],
{ timeout: 500, killSignal: 'SIGTERM' },
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err => {
expect(err).to.exist
expect(err.name).to.equal('FailedCommandError')
expect(err.code).to.equal('SIGTERM')
done()
}
)
})
})
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describe('as a promise', function() {
beforeEach(function() {
safeExec = safeExec.promises
})
it('should execute a valid command', async function() {
const { stdout, stderr } = await safeExec(['/bin/echo', 'hello'], options)
stdout.should.equal('hello\n')
stderr.should.equal('')
})
it('should throw a ConversionsDisabledError when appropriate', async function() {
settings.enableConversions = false
try {
await safeExec(['/bin/echo', 'hello'], options)
} catch (err) {
expect(err.name).to.equal('ConversionsDisabledError')
return
}
expect('method did not throw an error').not.to.exist
})
it('should throw a FailedCommandError when appropriate', async function() {
try {
await safeExec(['/usr/bin/env', 'false'], options)
} catch (err) {
expect(err.name).to.equal('FailedCommandError')
expect(err.code).to.equal(1)
return
}
expect('method did not throw an error').not.to.exist
})
})
})