Merge pull request #1702 from ethereum/refactor_tabs_2

src/app.js

@@ -46,7 +46,6 @@ const CompileTab = require('./app/tabs/compile-tab')
 const SettingsTab = require('./app/tabs/settings-tab')
 const AnalysisTab = require('./app/tabs/analysis-tab')
 const DebuggerTab = require('./app/tabs/debugger-tab')
-// const SupportTab = require('./app/tabs/support-tab')
 const TestTab = require('./app/tabs/test-tab')
 const RunTab = require('./app/tabs/run-tab')
 const FilePanel = require('./app/panels/file-panel')
@@ -432,7 +431,15 @@ Please make a backup of your contracts and start using http://remix.ethereum.org
 
   let filePanel = new FilePanel()
   registry.put({api: filePanel, name: 'filepanel'})
-  let compileTab = new CompileTab(registry)
+  let compileTab = new CompileTab(
+    registry.get('editor').api,
+    registry.get('config').api,
+    registry.get('renderer').api,
+    registry.get('fileproviders/swarm').api,
+    registry.get('filemanager').api,
+    registry.get('fileproviders').api,
+    registry.get('pluginmanager').api
+  )
   let run = new RunTab(
     registry.get('udapp').api,
     registry.get('udappUI').api,
@@ -444,12 +451,19 @@ Please make a backup of your contracts and start using http://remix.ethereum.org
     registry.get('pluginmanager').api,
     registry.get('compilersartefacts').api
   )
-  let settings = new SettingsTab(self._components.registry)
+  let settings = new SettingsTab(
+      registry.get('config').api,
+      registry.get('editor').api,
+      appManager
+  )
   let analysis = new AnalysisTab(registry)
   let debug = new DebuggerTab()
   const landingPage = new LandingPage(appManager, appStore)
-  // let support = new SupportTab()
-  let test = new TestTab(self._components.registry, compileTab)
+  let test = new TestTab(
+    registry.get('filemanager').api,
+    registry.get('filepanel').api,
+    compileTab
+  )
   let sourceHighlighters = registry.get('editor').api.sourceHighlighters
   let configProvider = self._components.filesProviders['config']
 

src/app/debugger/debuggerUI.js

@@ -12,8 +12,6 @@ var executionContext = require('../../execution-context')
 var globalRegistry = require('../../global/registry')
 
 var remixLib = require('remix-lib')
-var Web3Providers = remixLib.vm.Web3Providers
-var DummyProvider = remixLib.vm.DummyProvider
 
 var init = remixLib.init
 
@@ -30,72 +28,12 @@ var css = csjs`
   }
 `
 
-class ContextManager {
-  constructor () {
-    this.executionContext = executionContext
-    this.web3 = this.executionContext.web3()
-    this.event = new EventManager()
-  }
-
-  initProviders () {
-    this.web3Providers = new Web3Providers()
-    this.addProvider('DUMMYWEB3', new DummyProvider())
-    this.switchProvider('DUMMYWEB3')
-
-    this.addProvider('vm', this.executionContext.vm())
-    this.addProvider('injected', this.executionContext.internalWeb3())
-    this.addProvider('web3', this.executionContext.internalWeb3())
-    this.switchProvider(this.executionContext.getProvider())
-  }
-
-  getWeb3 () {
-    return this.web3
-  }
-
-  addProvider (type, obj) {
-    this.web3Providers.addProvider(type, obj)
-    this.event.trigger('providerAdded', [type])
-  }
-
-  switchProvider (type) {
-    var self = this
-    this.web3Providers.get(type, function (error, obj) {
-      if (error) {
-        console.log('provider ' + type + ' not defined')
-      } else {
-        self.web3 = obj
-        self.executionContext.detectNetwork((error, network) => {
-          if (error || !network) {
-            self.web3 = obj
-          } else {
-            var webDebugNode = init.web3DebugNode(network.name)
-            self.web3 = (!webDebugNode ? obj : webDebugNode)
-          }
-          self.event.trigger('providerChanged', [type, self.web3])
-        })
-        self.event.trigger('providerChanged', [type, self.web3])
-      }
-    })
-  }
-
-}
-
 class DebuggerUI {
 
   constructor (container) {
     this.registry = globalRegistry
     this.event = new EventManager()
 
-    this.executionContext = executionContext
-
-    this.contextManager = new ContextManager()
-
-    this.contextManager.initProviders()
-
-    this.contextManager.event.register('providerChanged', () => {
-      if (this.debugger) this.debugger.updateWeb3(this.contextManager.getWeb3())
-    })
-
     this.isActive = false
 
     this.sourceHighlighter = new SourceHighlighter()
@@ -173,20 +111,30 @@ class DebuggerUI {
     if (compilers['__last']) lastCompilationResult = compilers['__last']
 
     // TODO debugging with source highlight is disabled. see line 98
+
+    executionContext.detectNetwork((error, network) => {
+      let web3
+      if (error || !network) {
+        web3 = init.web3DebugNode(executionContext.web3())
+      } else {
+        var webDebugNode = init.web3DebugNode(network.name)
+        web3 = (!webDebugNode ? executionContext.web3() : webDebugNode)
+      }
+      init.extendWeb3(web3)
       this.debugger = new Debugger({
-      web3: this.contextManager.getWeb3(),
+        web3,
         offsetToLineColumnConverter: this.registry.get('offsettolinecolumnconverter').api,
         compiler: { lastCompilationResult }
       })
 
       this.listenToEvents()
 
-    this.debugger.debugger.updateWeb3(this.executionContext.web3())
       this.debugger.debug(blockNumber, txNumber, tx, () => {
         self.stepManager = new StepManagerUI(this.debugger.step_manager)
         self.vmDebugger = new VmDebugger(this.debugger.vmDebuggerLogic)
         self.renderDebugger()
       })
+    })
   }
 
   debug (txHash) {

src/app/files/fileManager.js

@@ -198,10 +198,10 @@ class FileManager extends ApiFactory {
   }
 
   getFilesFromPath (path) {
-    const provider = this.fileProviderOf(path)
-    if (!provider) throw new Error(`provider for path ${path} not found`)
     // TODO : Change provider with promise
     return new Promise((resolve, reject) => {
+      const provider = this.fileProviderOf(path)
+      if (!provider) return reject(`provider for path ${path} not found`)
       provider.resolveDirectory(path, (error, filesTree) => {
         if (error) reject(error)
         resolve(filesTree)

src/app/tabs/analysis-tab.js

@@ -12,6 +12,7 @@ class AnalysisTab extends ApiFactory {
     this.event = new EventManager()
     this.registry = registry
   }
+
   get profile () {
     return {
       name: 'solidityStaticAnalysis',
@@ -23,6 +24,7 @@ class AnalysisTab extends ApiFactory {
       kind: 'analysis'
     }
   }
+
   render () {
     var staticanalysis = new StaticAnalysis()
     this.registry.put({api: staticanalysis, name: 'staticanalysis'})
@@ -31,6 +33,7 @@ class AnalysisTab extends ApiFactory {
     this.el = yo`<div class="${css.analysisTabView}" id="staticanalysisView">${staticanalysis.render()}</div>`
     return this.el
   }
+
 }
 
 module.exports = AnalysisTab

src/app/tabs/compile-tab.js

@@ -21,7 +21,7 @@ import { ApiFactory } from 'remix-plugin'
 
 class CompileTab extends ApiFactory {
 
-  constructor (registry) {
+  constructor (editor, config, renderer, swarmfileProvider, fileManager, fileProviders, pluginManager) {
     super()
     this.events = new EventEmitter()
     this._view = {
@@ -34,27 +34,26 @@ class CompileTab extends ApiFactory {
     this.queryParams = new QueryParams()
 
     // dependencies
-    this._deps = {
-      editor: registry.get('editor').api,
-      config: registry.get('config').api,
-      renderer: registry.get('renderer').api,
-      swarmfileProvider: registry.get('fileproviders/swarm').api,
-      fileManager: registry.get('filemanager').api,
-      fileProviders: registry.get('fileproviders').api,
-      pluginManager: registry.get('pluginmanager').api
-    }
+    this.editor = editor
+    this.config = config
+    this.renderer = renderer
+    this.swarmfileProvider = swarmfileProvider
+    this.fileManager = fileManager
+    this.fileProviders = fileProviders
+    this.pluginManager = pluginManager
+
     this.data = {
       contractsDetails: {}
     }
 
-    this.compileTabLogic = new CompileTabLogic(this.queryParams, this._deps.fileManager, this._deps.editor, this._deps.config, this._deps.fileProviders)
+    this.compileTabLogic = new CompileTabLogic(this.queryParams, this.fileManager, this.editor, this.config, this.fileProviders)
     this.compiler = this.compileTabLogic.compiler
     this.compileTabLogic.init()
 
     this.compilerContainer = new CompilerContainer(
       this.compileTabLogic,
-      this._deps.editor,
-      this._deps.config,
+      this.editor,
+      this.config,
       this.queryParams
     )
   }
@@ -82,7 +81,7 @@ class CompileTab extends ApiFactory {
       }
     })
 
-    this._deps.fileManager.events.on('currentFileChanged', (name) => {
+    this.fileManager.events.on('currentFileChanged', (name) => {
       this.compilerContainer.currentFile = name
     })
     this.compiler.event.register('compilationFinished', (success, data, source) => {
@@ -106,7 +105,7 @@ class CompileTab extends ApiFactory {
       yo.update(this._view.contractSelection, contractSelection)
 
       if (data['error']) {
-        this._deps.renderer.error(data['error'].formattedMessage, this._view.errorContainer, {type: data['error'].severity || 'error'})
+        this.renderer.error(data['error'].formattedMessage, this._view.errorContainer, {type: data['error'].severity || 'error'})
         if (data['error'].mode === 'panic') {
           return modalDialogCustom.alert(yo`<div><i class="fa fa-exclamation-circle ${css.panicError}" aria-hidden="true"></i>
                                             The compiler returned with the following internal error: <br> <b>${data['error'].formattedMessage}.<br>
@@ -117,12 +116,12 @@ class CompileTab extends ApiFactory {
       }
       if (data.errors && data.errors.length) {
         data.errors.forEach((err) => {
-          if (this._deps.config.get('hideWarnings')) {
+          if (this.config.get('hideWarnings')) {
             if (err.severity !== 'warning') {
-              this._deps.renderer.error(err.formattedMessage, this._view.errorContainer, {type: err.severity})
+              this.renderer.error(err.formattedMessage, this._view.errorContainer, {type: err.severity})
             }
           } else {
-            this._deps.renderer.error(err.formattedMessage, this._view.errorContainer, {type: err.severity})
+            this.renderer.error(err.formattedMessage, this._view.errorContainer, {type: err.severity})
           }
         })
       }
@@ -215,7 +214,7 @@ class CompileTab extends ApiFactory {
       if (contract.metadata === undefined || contract.metadata.length === 0) {
         modalDialogCustom.alert('This contract may be abstract, may not implement an abstract parent\'s methods completely or not invoke an inherited contract\'s constructor correctly.')
       } else {
-        publishOnSwarm(contract, this._deps.fileManager, function (err, uploaded) {
+        publishOnSwarm(contract, this.fileManager, function (err, uploaded) {
           if (err) {
             try {
               err = JSON.stringify(err)
@@ -229,7 +228,7 @@ class CompileTab extends ApiFactory {
             modalDialogCustom.alert(yo`<span>Metadata published successfully.<br> <pre>${result}</pre> </span>`)
           }
         }, (item) => { // triggered each time there's a new verified publish (means hash correspond)
-          this._deps.swarmfileProvider.addReadOnly(item.hash, item.content)
+          this.swarmfileProvider.addReadOnly(item.hash, item.content)
         })
       }
     }
@@ -339,7 +338,7 @@ class CompileTab extends ApiFactory {
     this._view.errorContainer = yo`<div></div>`
     this._view.contractSelection = this.contractSelection()
     this._view.compilerContainer = this.compilerContainer.render()
-    const currentFile = this._deps.fileManager.currentFile()
+    const currentFile = this.fileManager.currentFile()
     if (currentFile) this.compilerContainer.currentFile = currentFile
 
     this._view.el = yo`

src/app/tabs/styles/settings-tab-styles.js

 var csjs = require('csjs-inject')
 
-var css = csjs`
+const css = csjs`
   .settingsTabView {
     padding: 2%;
-    display: flex;
   }
   .info {
-    margin-bottom: 1em;
+    margin-bottom: .6rem;
     word-break: break-word;
+    font-size: .8rem;
+  }
+  .info h7 {
+    margin-bottom: .5rem;
   }
   .title {
-    font-size: 1.1em;
-    font-weight: bold;
-    margin-bottom: 1em;
+    // font-size: 1.1em;
+    // font-weight: bold;
+    // margin-bottom: 1em;
+  }
+  .frow {
+    margin-bottom: .5rem;
   }
   .crow {
-    display: flex;
-    overflow: auto;
-    clear: both;
-    padding: .2em;
+    // display: flex;
+    // overflow: auto;
+    // clear: both;
+    // padding: .2em;
   }
   .checkboxText {
     font-weight: normal;
@@ -35,10 +41,6 @@ var css = csjs`
     padding: .5em;
     font-weight: bold;
   }
-  .select {
-    font-weight: bold;
-    margin-top: 1em;
-  }
   .heading {
     margin-bottom: 0;
   }
@@ -49,6 +51,7 @@ var css = csjs`
   input {
     margin-right: 5px;
     cursor: pointer;
+    width: inherit;
   }
   input[type=radio] {
     margin-top: 2px;
@@ -56,24 +59,36 @@ var css = csjs`
   .pluginTextArea {
     font-family: unset;
   }
-  .pluginLoad {
-    vertical-align: top;
-  }
-  i.warnIt {
-    color: var(--warning);
+
+  .removePlugin {
+    cursor: pointer;
   }
   .icon {
     margin-right: .5em;
   }
-  .remixdinstallation {
-    padding: 3px;
-    border-radius: 2px;
-    margin-left: 5px;
-  }
   .savegisttoken {
     margin-left: 5px;
   }
-}
+  .aPlugin {
+    display: inline-block;
+    padding-left: 10px;
+    padding-top: 4px;
+    padding-bottom: 6px;
+    max-width: 100px;
+    text-overflow: ellipsis;
+    overflow: hidden;
+    white-space: nowrap;
+    vertical-align: middle;
+  }
+  .removePlugin{
+    padding-left: 7px;
+    padding-right: 7px;
+    margin-left: 10px;
+  }
+  .inline {
+    display: inline;
+    width: 50%;
+  }
 `
 
 module.exports = css

src/app/tabs/styles/tabbed-menu-styles.js

-const csjs = require('csjs-inject')
-
-const css = csjs`
-  .menu {
-    display: flex;
-    list-style: none;
-    margin: 0;
-    padding: 0;
-  }
-  .active {
-  }
-  .options {
-    float: left;
-    padding-top: 0.7em;
-    min-width: 60px;
-    font-size: 0.9em;
-    cursor: pointer;
-    font-size: 1em;
-    text-align: center;
-  }
-  .optionViews {
-    overflow: scroll;
-    height: 100%;
-  }
-  .optionViews > div {
-    display: none;
-  }
-  .optionViews .pre {
-    word-wrap: break-word;
-    border-radius: 3px;
-    display: inline-block;
-    padding: 0 0.6em;
-  }
-`
-
-module.exports = css

src/app/tabs/support-tab.js

-const yo = require('yo-yo')
-var css = require('./styles/support-tab-styles')
-
-import { ApiFactory } from 'remix-plugin'
-
-class SupportTab extends ApiFactory {
-
-  constructor (localRegistry) {
-    super()
-    this.el = null
-    this.gitterIframe = ''
-    this.gitterIsLoaded = false
-  }
-
-  __showing () {
-    if (this.gitterIsLoaded) return
-
-    const iframe = yo`<iframe class="${css.chatIframe}" src='https://gitter.im/ethereum/remix/~embed'></iframe>`
-    this.gitterIframe.parentNode.replaceChild(iframe, this.gitterIframe)
-    this.gitterIframe = iframe
-    this.el.style.display = 'block'
-    this.gitterIsLoaded = true
-  }
-
-  get profile () {
-    return {
-      name: 'support',
-      methods: [],
-      events: [],
-      icon: 'data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0idXRmLTgiPz4KPHN2ZyB3aWR0aD0iMTc5MiIgaGVpZ2h0PSIxNzkyIiB2aWV3Qm94PSIwIDAgMTc5MiAxNzkyIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjxwYXRoIGQ9Ik03MDQgMTkycTAtMjYtMTktNDV0LTQ1LTE5LTQ1IDE5LTE5IDQ1IDE5IDQ1IDQ1IDE5IDQ1LTE5IDE5LTQ1em04OTYtMzJ2MzIwcTAgMTYtMTIgMjUtOCA3LTIwIDctNCAwLTctMWwtNDQ4LTk2cS0xMS0yLTE4LTExdC03LTIwaC0yNTZ2MTAycTExMSAyMyAxODMuNSAxMTF0NzIuNSAyMDN2ODAwcTAgMjYtMTkgNDV0LTQ1IDE5aC01MTJxLTI2IDAtNDUtMTl0LTE5LTQ1di04MDBxMC0xMDYgNjIuNS0xOTAuNXQxNjEuNS0xMTQuNXYtMTExaC0zMnEtNTkgMC0xMTUgMjMuNXQtOTEuNSA1My02NiA2Ni41LTQwLjUgNTMuNS0xNCAyNC41cS0xNyAzNS01NyAzNS0xNiAwLTI5LTctMjMtMTItMzEuNS0zN3QzLjUtNDlxNS0xMCAxNC41LTI2dDM3LjUtNTMuNSA2MC41LTcwIDg1LTY3IDEwOC41LTUyLjVxLTI1LTQyLTI1LTg2IDAtNjYgNDctMTEzdDExMy00NyAxMTMgNDcgNDcgMTEzcTAgMzMtMTQgNjRoMzAycTAtMTEgNy0yMHQxOC0xMWw0NDgtOTZxMy0xIDctMSAxMiAwIDIwIDcgMTIgOSAxMiAyNXoiLz48L3N2Zz4=',
-      description: 'help center'
-    }
-  }
-
-  render () {
-    if (this.el) return this.el
-
-    this.gitterIframe = yo`<div></div>`
-
-    const remixd = yo`
-      <div class="${css.info}">
-        <div class=${css.title}>Accessing local files</div>
-        <div class="${css.crow}">
-          Remixd is a tool which allow Remix IDE to access files located in your local computer.
-          it can also be used to setup a development environment.
-        </div>
-        <div class="${css.crow}">More infos:</div>
-        <div class="${css.crow}"><a target="_blank" href="https://github.com/ethereum/remixd"> https://github.com/ethereum/remixd</a></div>
-        <div class="${css.crow}"><a target="_blank" href="https://remix.readthedocs.io/en/latest/tutorial_remixd_filesystem">http://remix.readthedocs.io/en/latest/tutorial_remixd_filesystem.html</a></div>
-        <div class="${css.crow}">Installation: <pre class=${css.remixdinstallation}>npm install remixd -g</pre></div>
-      </div>`
-
-    const localremixd = yo`
-      <div class="${css.info}">
-        <div class=${css.title}>Running Remix locally</div>
-        <div class="${css.crow}">
-          as a NPM module:
-        </div>
-        <a target="_blank" href="https://www.npmjs.com/package/remix-ide">https://www.npmjs.com/package/remix-ide</a>
-        <pre class=${css.remixdinstallation}>npm install remix-ide -g</pre>
-        <div class="${css.crow}">
-          as an electron app:
-        </div>
-        <a target="_blank" href="https://github.com/horizon-games/remix-app">https://github.com/horizon-games/remix-app</a>
-      </div>`
-
-    this.el = yo`
-      <div class="${css.supportTabView}" id="supportView">
-        <div class="${css.infoBox}">
-          Have a question, found a bug or want to propose a feature? Have a look at the
-          <a target="_blank" href='https://github.com/ethereum/remix-ide/issues'> issues</a> or check out
-          <a target="_blank" href='https://remix.readthedocs.io/en/latest/'> the documentation page on Remix</a> or
-          <a target="_blank" href='https://solidity.readthedocs.io/en/latest/'> Solidity</a>.
-        </div>
-        <div class="${css.chat}">
-          <div class="${css.chatTitle}" onclick=${() => { window.open('https://gitter.im/ethereum/remix') }} title='Click to open chat in Gitter'>
-            <div class="${css.chatTitleText}">ethereum/remix community chat</div>
-          </div>
-          ${this.gitterIframe}
-        </div>
-        ${remixd}
-        ${localremixd}
-      </div>`
-
-    return this.el
-  }
-
-}
-
-module.exports = SupportTab

src/app/tabs/tabbed-menu.js

-var yo = require('yo-yo')
-var css = require('./styles/tabbed-menu-styles')
-
-var globalRegistry = require('../../global/registry')
-var helper = require('../../lib/helper')
-
-var EventManager = require('../../lib/events')
-
-class TabbedMenu {
-  constructor (localRegistry) {
-    const self = this
-    self.event = new EventManager()
-    self._components = {}
-    self._components.registry = localRegistry || globalRegistry
-    self._deps = {
-      app: self._components.registry.get('app').api
-    }
-    self._view = { el: null, viewport: null, tabs: {}, contents: {} }
-  }
-  render () {
-    const self = this
-    if (self._view.el) return self._view.el
-    self._view.el = yo`<ul class=${css.menu}>${Object.values(self._view.tabs)}</ul>`
-    return self._view.el
-  }
-  renderViewport () {
-    const self = this
-    if (self._view.viewport) return self._view.viewport
-    self._view.viewport = yo`
-      <div id="optionViews" class=${css.optionViews}>
-        ${Object.values(self._view.contents)}
-      </div>`
-    return self._view.viewport
-  }
-  addTab (title, cssClass, content) {
-    const self = this
-    if (helper.checkSpecialChars(title)) return
-    if (self._view.contents[title] || self._view.tabs[title]) throw new Error('tab already exists')
-    self._view.contents[title] = content
-    self._view.tabs[title] = yo`<li class="${css.options} ${cssClass}" onclick=${function (ev) { self.selectTab(this) }} title=${title}>${title}</li>`
-    if (self._view.el) self._view.el.appendChild(self._view.tabs[title])
-    if (self._view.viewport) self._view.viewport.appendChild(self._view.contents[title])
-  }
-  removeTabByTitle (title) {
-    const self = this
-    if (self._view.tabs[title]) {
-      self._view.tabs[title].parentNode.removeChild(self._view.tabs[title])
-    }
-    if (self._view.contents[title]) {
-      self._view.contents[title].parentNode.removeChild(self._view.contents[title])
-    }
-    delete self._view.contents[title]
-    delete self._view.tabs[title]
-  }
-  getTabByClass (tabClass) {
-    const self = this
-    return self._view.el.querySelector(`li.${tabClass}`)
-  }
-  updateTabTitle (tabClass, title) {
-    const self = this
-    var tab = self.getTabByClass(tabClass)
-    if (tab) tab.innerHTML = title
-  }
-  selectTabByTitle (title) {
-    const self = this
-    self.selectTab(self._view.tabs[title])
-  }
-  selectTabByClassName (tabClass) {
-    const self = this
-    var tab = self.getTabByClass(tabClass)
-    if (tab) self.selectTab(tab)
-    return tab
-  }
-  selectTab (el) {
-    const self = this
-    if (!el.classList.contains(css.active)) {
-      var nodes = Object.values(self._view.tabs)
-      for (var i = 0; i < nodes.length; ++i) {
-        nodes[i].classList.remove(css.active)
-        self._view.contents[nodes[i].getAttribute('title')].style.display = 'none'
-      }
-    }
-    var title = el.getAttribute('title')
-    self._view.contents[el.getAttribute('title')].style.display = 'block'
-    el.classList.add(css.active)
-    self._deps.app.event.trigger('tabChanged', [title])
-  }
-}
-
-module.exports = TabbedMenu

src/app/tabs/testTab/testTab.js

+var helper = require('../../../lib/helper.js')
+var modalDialogCustom = require('../../ui/modal-dialog-custom')
+
+class TestTabLogic {
+
+  constructor (fileManager) {
+    this.fileManager = fileManager
+  }
+
+  generateTestFile () {
+    var path = this.fileManager.currentPath()
+    var fileProvider = this.fileManager.fileProviderOf(path)
+    if (!fileProvider) return
+    helper.createNonClashingNameWithPrefix(path + '/test.sol', fileProvider, '_test', (error, newFile) => {
+      if (error) return modalDialogCustom.alert('Failed to create file. ' + newFile + ' ' + error)
+      if (!fileProvider.set(newFile, this.generateTestContractSample())) return modalDialogCustom.alert('Failed to create test file ' + newFile)
+      this.fileManager.switchFile(newFile)
+    })
+  }
+
+  async getTests (cb) {
+    var path = this.fileManager.currentPath()
+    if (!path) return cb(null, [])
+    var provider = this.fileManager.fileProviderOf(path)
+    if (!provider) return cb(null, [])
+    var tests = []
+    let files
+    try {
+      files = await this.fileManager.getFilesFromPath(path)
+    } catch (e) {
+      cb(e.message)
+    }
+    for (var file in files) {
+      if (/.(_test.sol)$/.exec(file)) tests.push(provider.type + '/' + file)
+    }
+    cb(null, tests)
+  }
+
+  generateTestContractSample () {
+    return `pragma solidity >=0.4.0 <0.6.0;
+      import "remix_tests.sol"; // this import is automatically injected by Remix.
+
+      // file name has to end with '_test.sol'
+      contract test_1 {
+
+        function beforeAll() public {
+          // here should instantiate tested contract
+          Assert.equal(uint(4), uint(3), "error in before all function");
+        }
+
+        function check1() public {
+          // use 'Assert' to test the contract
+          Assert.equal(uint(2), uint(1), "error message");
+          Assert.equal(uint(2), uint(2), "error message");
+        }
+
+        function check2() public view returns (bool) {
+          // use the return value (true or false) to test the contract
+          return true;
+        }
+      }
+
+    contract test_2 {
+
+      function beforeAll() public {
+        // here should instantiate tested contract
+        Assert.equal(uint(4), uint(3), "error in before all function");
+      }
+
+      function check1() public {
+        // use 'Assert' to test the contract
+        Assert.equal(uint(2), uint(1), "error message");
+        Assert.equal(uint(2), uint(2), "error message");
+      }
+
+      function check2() public view returns (bool) {
+        // use the return value (true or false) to test the contract
+        return true;
+      }
+    }`
+  }
+
+}
+
+module.exports = TestTabLogic