overleaf/services/web/test/UnitTests/coffee/FileStore/FileStoreControllerTests.coffee

assert = require("chai").assert
sinon = require('sinon')
chai = require('chai')
should = chai.should()
expect = chai.expect
modulePath = "../../../../app/js/Features/FileStore/FileStoreController.js"
SandboxedModule = require('sandboxed-module')

describe "FileStoreController", ->

	beforeEach ->
		@FileStoreHandler =
			getFileStream: sinon.stub()
		@ProjectLocator =
			findElement: sinon.stub()
		@controller = SandboxedModule.require modulePath, requires:
			"settings-sharelatex": @settings
			"logger-sharelatex" : @logger = {log:sinon.stub(), err:sinon.stub()}
			"../Project/ProjectLocator": @ProjectLocator
			"./FileStoreHandler": @FileStoreHandler
		@stream = {}
		@project_id = "2k3j1lk3j21lk3j"
		@file_id = "12321kklj1lk3jk12"
		@req =
			params:
				Project_id: @project_id
				File_id: @file_id
			query: "query string here"
			get: (key) -> undefined
		@res =
			setHeader: sinon.stub()
		@file =
			name: "myfile.png"

	describe "getFile", ->

		beforeEach ->
			@FileStoreHandler.getFileStream.callsArgWith(3, null, @stream)
			@ProjectLocator.findElement.callsArgWith(1, null, @file)

		it "should call the file store handler with the project_id file_id and any query string", (done)->
			@stream.pipe = (des)=>
				@FileStoreHandler.getFileStream.calledWith(@req.params.Project_id, @req.params.File_id, @req.query).should.equal true
				done()
			@controller.getFile @req, @res

		it "should pipe to res", (done)->
			@stream.pipe = (des)=>
				des.should.equal @res
				done()
			@controller.getFile @req, @res

		it "should get the file from the db", (done)->	
			@stream.pipe = (des)=>
				opts =
					project_id: @project_id
					element_id: @file_id
					type: "file"
				@ProjectLocator.findElement.calledWith(opts).should.equal true
				done()
			@controller.getFile @req, @res

		it "should set the Content-Disposition header", (done)->
			@stream.pipe = (des)=>
				@res.setHeader.calledWith("Content-Disposition", "attachment; filename=#{@file.name}").should.equal true
				done()
			@controller.getFile @req, @res