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|
return if global.testingBrowser
os = require 'os'
fs = require 'fs'
path = require 'path'
# REPL
# ----
Stream = require 'stream'
class MockInputStream extends Stream
constructor: ->
@readable = true
resume: ->
emitLine: (val) ->
@emit 'data', new Buffer("#{val}\n")
class MockOutputStream extends Stream
constructor: ->
@writable = true
@written = []
write: (data) ->
#console.log 'output write', arguments
@written.push data
lastWrite: (fromEnd = -1) ->
@written[@written.length - 1 + fromEnd].replace /\r?\n$/, ''
# Create a dummy history file
historyFile = path.join os.tmpdir(), '.coffee_history_test'
fs.writeFileSync historyFile, '1 + 2\n'
testRepl = (desc, fn) ->
input = new MockInputStream
output = new MockOutputStream
repl = Repl.start {input, output, historyFile}
test desc, -> fn input, output, repl
ctrlV = { ctrl: true, name: 'v'}
testRepl 'reads history file', (input, output, repl) ->
input.emitLine repl.rli.history[0]
eq '3', output.lastWrite()
testRepl "starts with coffee prompt", (input, output) ->
eq 'coffee> ', output.lastWrite(0)
testRepl "writes eval to output", (input, output) ->
input.emitLine '1+1'
eq '2', output.lastWrite()
testRepl "comments are ignored", (input, output) ->
input.emitLine '1 + 1 #foo'
eq '2', output.lastWrite()
testRepl "output in inspect mode", (input, output) ->
input.emitLine '"1 + 1\\n"'
eq "'1 + 1\\n'", output.lastWrite()
testRepl "variables are saved", (input, output) ->
input.emitLine "foo = 'foo'"
input.emitLine 'foobar = "#{foo}bar"'
eq "'foobar'", output.lastWrite()
testRepl "empty command evaluates to undefined", (input, output) ->
# A regression fixed in Node 5.11.0 broke the handling of pressing enter in
# the Node REPL; see https://github.com/nodejs/node/pull/6090 and
# https://github.com/jashkenas/coffeescript/issues/4502.
# Just skip this test for versions of Node < 6.
return if parseInt(process.versions.node.split('.')[0], 10) < 6
input.emitLine ''
eq 'undefined', output.lastWrite()
testRepl "ctrl-v toggles multiline prompt", (input, output) ->
input.emit 'keypress', null, ctrlV
eq '------> ', output.lastWrite(0)
input.emit 'keypress', null, ctrlV
eq 'coffee> ', output.lastWrite(0)
testRepl "multiline continuation changes prompt", (input, output) ->
input.emit 'keypress', null, ctrlV
input.emitLine ''
eq '....... ', output.lastWrite(0)
testRepl "evaluates multiline", (input, output) ->
# Stubs. Could assert on their use.
output.cursorTo = (pos) ->
output.clearLine = ->
input.emit 'keypress', null, ctrlV
input.emitLine 'do ->'
input.emitLine ' 1 + 1'
input.emit 'keypress', null, ctrlV
eq '2', output.lastWrite()
testRepl "variables in scope are preserved", (input, output) ->
input.emitLine 'a = 1'
input.emitLine 'do -> a = 2'
input.emitLine 'a'
eq '2', output.lastWrite()
testRepl "existential assignment of previously declared variable", (input, output) ->
input.emitLine 'a = null'
input.emitLine 'a ?= 42'
eq '42', output.lastWrite()
testRepl "keeps running after runtime error", (input, output) ->
input.emitLine 'a = b'
input.emitLine 'a'
eq 'undefined', output.lastWrite()
process.on 'exit', ->
try
fs.unlinkSync historyFile
catch exception # Already deleted, nothing else to do.
|
