espresso classes

To create a UI by espresso test RecorderNote: The espresso Test Recorder is only a beta version in Android Stuido 2.2.The tool espresso Test Recorder allows you to create your UI tests without writing any code. By recording a test scenario, you can record the interaction with your device, or you can add assertions to your app snapshot to test specific UI elements

1. First, create a mainactivityinstrumentedtest Java file in a folder with the suffix androidtest,Package com.example.pj.git;Import Android.support.test.filters.LargeTest;Import Android.support.test.rule.ActivityTestRule;Import ANDROID.SUPPORT.TEST.RUNNER.ANDROIDJUNIT4;Import Android.view.View;Import Org.hamcrest.Matcher;Import Org.junit.Rule;Import Org.junit.Test;Import Org.junit.runner.RunWith;Import static Android.support.test.espresso.Espresso.onView;Import static Android.support.test.espres

IntroductionEspresso and Robotium are both Android UI Automation test frameworks and are open source libraries. Robotium, the most widely used testing framework in the early Android world, has expanded a number of effective testing methods for the Android UI based on JUnit.Espresso is a new tool that, relatively speaking, is more accurate and helps developers write more concise UI test code for the app. Espresso's birth, the biggest advantage lies in "fast". In Robotium's test code, there is usu

Automate UI testing with the espresso framework for automated actionsCreate a mainactivityinstrumentedtest Java file within a folder with the suffix androidtest Packagecom.example.test;Importandroid.support.test.filters.LargeTest;ImportAndroid.support.test.rule.ActivityTestRule;ImportANDROID.SUPPORT.TEST.RUNNER.ANDROIDJUNIT4;ImportOrg.junit.Rule;Importorg.junit.Test;ImportOrg.junit.runner.RunWith;Import StaticAndroid.support.test.espresso.Espresso.onV

Package com.example.test;Import Android.support.test.filters.LargeTest;Import Android.support.test.rule.ActivityTestRule;Import ANDROID.SUPPORT.TEST.RUNNER.ANDROIDJUNIT4;Import Org.junit.Rule;Import Org.junit.Test;Import Org.junit.runner.RunWith;Import static Android.support.test.espresso.Espresso.onView;Import static Android.support.test.espresso.action.ViewActions.click;Import static Android.support.test.espresso.action.ViewActions.closeSoftKeyboard;Import static Android.support.test.espresso.

wrapper classes in JAVAThere is no string inthe wrapper class, it is a reference data typeA base type cannot call a method, and its wrapper class has many methodsThe wrapper class provides two main types of methods:1. ways to convert this type and other basic types2. ways to convert strings and this type and wrapper class to each other Basic type The corresponding packaging class Byte Byte Short

Mention Java Underwear class (Innerclass) A lot of people are not familiar with, actually similar concept in C + + also has, that is nested class (Nested Class), about the difference between the two, there will be a comparison in the following. The inner class, on the surface, defines a class in a class (as you can see from the inside class, which can be defined in many places), but it's not as simple as it might seem, and his usefulness may not be so obvious to beginners, but with his deep unde

C + + Primer Learning Note _31_ Object-oriented Programming (2)-Inheritance (ii): Inheritance and constructors, conversions from derived classes to base classes, base classes to derived classesa member function that cannot be automatically inheritedconstructor functionCopy constructorDestructors= operatorsecond, inheritance and constructor function The constructo

An overview of the inner classes:The class is defined inside another class, which is called an inner class.　　Example: class B is defined in Class A, and Class B is called an inner class.Access characteristics of internal classes:　　A: Inner classes can access members of external classes directly, including private members.　　B: external

Reference: "Data structure C + + language description" Concept: Nested classes are defined in a class, and classes that define nested classes are called peripheral classes. Nested classes can only be used in peripheral classes. Th

Internal classes are defined in Wikipedia as: In object-oriented programming, an inner class (also called a nested Class) is a class that is declared in another class or interface. The inner class differs from the subclass (subclass). (Translator Note: the wiki annotations are incorrect, and the inner and nested classes are not identical, see below.) ）In Java, the above definition can be an example of the f

1: Problems with formal parameters and return values (understanding)(1) Formal parameters:Class Name: An object that requires this classAbstract class Name: A subclass object that requires this classInterface Name: An implementation class object that requires this interface(2) Return value type:Class Name: Returns the object of the classAbstract class Name: Returns the subclass object of the classInterface Name: An object that returns an implementation class for the interface(3) Chain-type progr

The FileInputStream and FileOutputStream classes are used to create the input and output stream objects for disk files, using their constructors to specify the file path and file name. When you create an FileInputStream instance object, the specified file should be present and readable. When you create an FileOutputStream instance object, the original content in this file is overwritten if the specified file already exists. Two ways to create

document:cdoctemplate* getdoctemplate () const; To get a document pointer from a document template:Viaual POSITION getfirstdocposition () const = 0;Visual cdocument* Getnextdoc (POSITION rpos) const = 0; 9. Get a pointer to each view in the Split view Defined in the main frame: CSplitterWnd m_wndsplitter; Define two view classes: CView1, CView2 Overload in a framework class:BOOL cmainframe::oncreateclient (lpcreatestruct, ccreatecontext* pContext){V

There are roughly 5 types of relationships between classes: 1, dependency relationship (Dependency) One-way, which indicates that one class relies on the definition of another class, where the change of one class affects the other class, and is a "use a" relationship If a depends on B, then B behaves as a local variable, method parameter, static method call, etc. public class Person {public void dosomething () { card = new Card ();//local variable

The number of inheritance between classes and classes, classes and interfaces, and interfaces. 1. Classes and classes can be represented as inheritance relationships, expressed by the extends keyword. This is because if A class inherits Class A and Class B, if AB has two si

Label: Java inherited class Interface1. Classes and classes can be represented as inheritance relationships, expressed by the extends keyword. This is because if a class inherits Class A and Class B, if AB has two similar methods, it cannot determine which method to inherit, therefore, class inheritance can only be one-to-one. However, a class can have multiple subclasses,A class can have only one parent cl

attributeAssign values at the same time when declaring, often with staticDo not assign value at declaration, must be assigned in constructor methodGeneral principle: Ensure that when each object is created, the final attribute learns that it is determinedCases:4. Final modification parametersThe final keyword is added before the method parameter in order to prevent the data from being modified in the method body.Iii. the relationship between class and class1. Association relationship1), Correla

(file2), bw = new BufferedWriter (FW); Bw.write (sbff.tostring ());} catch (FileNotFoundException e) {//Todo auto-generated catch Blocke.printstacktrace ();} catch (IOException e) {//Todo Au To-generated catch Blocke.printstacktrace ();} Finally{try {br.clOSE (); Bw.close ();} catch (IOException e) {//TODO auto-generated catch Blocke.printstacktrace ();}}}then the code that generates the method class:Finally, the code that generates the view interface: Copyright NOTICE: This article for Bo Mast

Nested classes, internal classes, static internal classes in Java, and java nestingIn Java, we define another class within a class, as shown below: class OuterClass { ... class NestedClass { ... }}In the preceding example, OuterClass is called the external class (enclosing Class), and the class in it is called the Nested Class ). There are two ty