Add bunch of ID's to qml components so it's easier to test them.

CURA-5618

plugins/Toolbox/resources/qml/Toolbox.qml

@@ -33,6 +33,7 @@ Window
         {
             id: header
         }
+
         Item
         {
             id: mainView
@@ -75,6 +76,7 @@ Window
                 visible: toolbox.viewCategory == "installed"
             }
         }
+
         ToolboxFooter
         {
             id: footer

plugins/Toolbox/resources/qml/ToolboxDownloadsGridTile.qml

@@ -9,6 +9,7 @@ import UM 1.1 as UM
 
 Item
 {
+    id: toolboxDownloadsGridTile
     property int packageCount: (toolbox.viewCategory == "material" && model.type === undefined) ? toolbox.getTotalNumberOfMaterialPackagesByAuthor(model.id) : 1
     property int installedPackages: (toolbox.viewCategory == "material" && model.type === undefined) ? toolbox.getNumberOfInstalledPackagesByAuthor(model.id) : (toolbox.isInstalled(model.id) ? 1 : 0)
     height: childrenRect.height

plugins/Toolbox/resources/qml/ToolboxHeader.qml

@@ -21,8 +21,10 @@ Item
             left: parent.left
             leftMargin: UM.Theme.getSize("default_margin").width
         }
+
         ToolboxTabButton
         {
+            id: pluginsTabButton
             text: catalog.i18nc("@title:tab", "Plugins")
             active: toolbox.viewCategory == "plugin" && enabled
             enabled: toolbox.viewPage != "loading" && toolbox.viewPage != "errored"
@@ -36,6 +38,7 @@ Item
 
         ToolboxTabButton
         {
+            id: materialsTabButton
             text: catalog.i18nc("@title:tab", "Materials")
             active: toolbox.viewCategory == "material" && enabled
             enabled: toolbox.viewPage != "loading" && toolbox.viewPage != "errored"
@@ -49,6 +52,7 @@ Item
     }
     ToolboxTabButton
     {
+        id: installedTabButton
         text: catalog.i18nc("@title:tab", "Installed")
         active: toolbox.viewCategory == "installed"
         anchors

resources/qml/AddMachineDialog.qml

@@ -79,6 +79,7 @@ UM.Dialog
             section.property: "section"
             section.delegate: Button
             {
+                id: machineSectionButton
                 text: section
                 width: machineList.width
                 style: ButtonStyle
@@ -214,6 +215,7 @@ UM.Dialog
 
     Button
     {
+        id: addPrinterButton
         text: catalog.i18nc("@action:button", "Add Printer")
         anchors.bottom: parent.bottom
         anchors.right: parent.right

resources/qml/Cura.qml

@@ -104,11 +104,13 @@ UM.MainWindow
                 title: catalog.i18nc("@title:menu menubar:toplevel","&File");
                 MenuItem
                 {
+                    id: newProjectMenu
                     action: Cura.Actions.newProject;
                 }
 
                 MenuItem
                 {
+                    id: openMenu
                     action: Cura.Actions.open;
                 }
 
@@ -148,6 +150,7 @@ UM.MainWindow
 
                 MenuItem
                 {
+                    id: exportSelectionMenu
                     text: catalog.i18nc("@action:inmenu menubar:file", "Export Selection...");
                     enabled: UM.Selection.hasSelection;
                     iconName: "document-save-as";
@@ -156,7 +159,11 @@ UM.MainWindow
 
                 MenuSeparator { }
 
-                MenuItem { action: Cura.Actions.reloadAll; }
+                MenuItem
+                {
+                    id: reloadAllMenu
+                    action: Cura.Actions.reloadAll;
+                }
 
                 MenuSeparator { }
 
@@ -284,6 +291,7 @@ UM.MainWindow
 
             Menu
             {
+                id: preferencesMenu
                 title: catalog.i18nc("@title:menu menubar:toplevel","P&references");
 
                 MenuItem { action: Cura.Actions.preferences; }
@@ -291,7 +299,7 @@ UM.MainWindow
 
             Menu
             {
-                //: Help menu
+                id: helpMenu
                 title: catalog.i18nc("@title:menu menubar:toplevel","&Help");
 
                 MenuItem { action: Cura.Actions.showProfileFolder; }

resources/qml/Preferences/GeneralPage.qml

@@ -13,6 +13,7 @@ UM.PreferencesPage
 {
     //: General configuration page title
     title: catalog.i18nc("@title:tab","General")
+    id: generalPreferencesPage
 
     function setDefaultLanguage(languageCode)
     {
@@ -283,9 +284,6 @@ UM.PreferencesPage
                 }
             }
 
-
-
-
             Label
             {
                 id: languageCaption

resources/qml/Settings/SettingCategory.qml

@@ -16,6 +16,7 @@ Button
     anchors.rightMargin: UM.Theme.getSize("sidebar_margin").width
     background: Rectangle
     {
+        id: backgroundRectangle
         implicitHeight: UM.Theme.getSize("section").height
         color: {
             if (base.color) {
@@ -35,6 +36,7 @@ Button
         Behavior on color { ColorAnimation { duration: 50; } }
         Rectangle
         {
+            id: backgroundLiningRectangle
             height: UM.Theme.getSize("default_lining").height
             width: parent.width
             anchors.bottom: parent.bottom
@@ -68,6 +70,7 @@ Button
         anchors.left: parent.left
 
         Label {
+            id: settingNameLabel
             anchors
             {
                 left: parent.left