About software Testing (3): Extended applications based on the previous equivalence class partitioning

　　

　　

Overview of the Outlook: This article mainly for the previous topic to make some extensibility changes, resulting in equivalence class equivalence class changes. This way, the equivalent class partitioning method of adding up to 3 editbox is realized, which strengthens my understanding of equivalence class partitioning.

1, Title content: Write 3 editbox, ask EditBox to allow 1 to 6 English characters or numbers, press OK to end

Valid equivalence classes: Length: 1 to 6 characters: a-z,a-z,0-9.

Invalid equivalent class length: 0, 7 characters: English/numeric characters, control characters, punctuation.

2, about the equivalence class some necessary knowledge I will not repeat, the previous article has mentioned.

3. Dividing equivalence classes

numbering	Valid equivalence classes	numbering	invalid equivalence class
1	Length of 1-6	6	Null
2	Number 0-9	7	Length greater than 6
3	Small Letter A-Z	8	English/numeric characters, control characters, punctuation
4	Capital Letter A-Z	9	N0.1 correct, N0.1 correct, N0.1 error
5	The correct number of inputs is 3	10	N0.1 correct, N0.1 error, N0.1 correct
		11	N0.1 correct, N0.1 error, N0.1 error
		12	N0.1 error, N0.1 correct, N0.1 correct
		13	N0.1 error, N0.1 correct, N0.1 error
		14	N0.1 error, N0.1 error, N0.1 correct
		15	N0.1 error, N0.1 error, N0.1 error

4. Test Cases

numbering	Test Cases	overriding equivalence classes	Expected output
1	3a4b5c,3a4b5c,3a4b5c	1,2,3,4.5	No.0:ok No.1:ok No.2:ok
2	123,123,null	6,9	No.0:ok No.1:ok No.2: input cannot be empty
3	123,123,1234567	7,9	No.0:ok No.1:ok No.2: Input character length too long
4	123,123,[email Protected]#￥	8,9	No.0:ok No.1:ok No.2: only English letters or numbers can be entered
5	123,[email protected]#￥,123	10	No.0:ok The most: You can only enter English letters or numbers No.2:ok
	123,[email Protected]#￥,[email Protected]#￥	11	No.0:ok The most: You can only enter English letters or numbers No.2: only English letters or numbers can be entered
7	[Email Protected]#￥, 123,123	12	no.0: Only English letters or numbers can be entered No.1:ok No.2:ok
8	[Email Protected]#￥, 123,1234567	13	no.0: Only English letters or numbers can be entered No.1:ok No.2: Input character length too long
9	[Email Protected]#￥, 1234567,123	14	no.0: Only English letters or numbers can be entered Maximum: Input character length is too long No.2:ok
10	[Email Protected]#￥, 1234567,null	15	no.0: Only English letters or numbers can be entered Maximum: Input character length is too long No.2: input cannot be empty

5. Write code

　　　　

Import java.awt.*;
Import java.awt.event.ActionEvent;
Import Java.awt.event.ActionListener;

Import javax.swing.*;

Public class Test3 {
Public final static Boolean right_to_left = false;
Static JButton jb = new JButton ("OK"); br> static JTextField tf = new JTextField ("");
Static JTextField TF2 = new JTextField ("");
Static JTextField tf3 = new JTextField ("");
Static JTextArea ta = new JTextArea ("");
public static void Addcomponentstopane (Container contentpane) {
if (right_to_left) {
Contentpane.setcomponentorientation (
Componentorientation.right_to_left);
}
//any number of rows and 2 columns
Contentpane.setlayout (new GridLayout (6,1));

Contentpane.add (New JLabel ("Enter Your Name"));
Contentpane.add (TF);
Contentpane.add (TF2);
Contentpane.add (TF3);
Contentpane.add (JB);
Contentpane.add (TA);
//jb.setmnemonic (keyevent.vk_i);//set ShortCut Keys
Jb.addactionlistener (new ActionListener () {

public void actionperformed (ActionEvent arg0) {
TODO auto-generated Method Stub
string[] test = new STRING[3];

Test[0] = Tf.gettext ();
TEST[1] = Tf2.gettext ();
TEST[2] = Tf3.gettext ();
Ta.settext ("");
for (int i = 0; i < 3; i++) {

if (Test[i].matches ("[a-za-z0-9]{1,6}"))
Ta.settext (Ta.gettext () + "No." +i+ ": OK" + "\ n");
else if (test[i].length () <= 0)
Ta.settext (Ta.gettext () + "No." +i+ ": Input cannot be empty" + "\ n");
else if (Test[i].length () > 6)
Ta.settext (Ta.gettext () + "No." +i+ ": input character length too long" + "\ n");
Else
Ta.settext (Ta.gettext () + "No." +i+ ": Can only enter the English alphabet or the number" + "\ n");

}

}
});
}

private static void Createandshowgui () {
Jframe.setdefaultlookandfeeldecorated (TRUE);

JFrame frame = new JFrame ("GridLayout Source Demo");
Frame.setdefaultcloseoperation (Jframe.exit_on_close);

Set up the content pane and GridLayout
Addcomponentstopane (Frame.getcontentpane ());

Frame.pack ();
Frame.setvisible (TRUE);
}

public static void Main (string[] args) {
Javax.swing.SwingUtilities.invokeLater (New Runnable () {
public void Run () {
Createandshowgui ();
}
});
}
}

The above Java Code compilation environment is a WINDOW8 64-bit system, and the compiler is eclipse.

6. Test results

　　　　　　

Match the desired result and prove that the test was successful.

7, Summary: Through the actual operation of the software testing, more profound understanding of equivalence class division, and more understanding of the importance of software testing. As the software system grows, so does the software testing that we have with it, so that the resources that consume as little as possible are done with all the parts we want to detect.

8, welcome everyone to my blog criticism.

About software Testing (3): Extended applications based on the previous equivalence class partitioning