Shulou(Shulou.com)06/03 Report--

First, set up the rendezvous point

The rendezvous point can control each Vuser to execute tasks at the same time, and with the help of the rendezvous point, you can achieve the same concurrency in the true sense of completion in loadrunner.

When using rendezvous points, heavy user loads can be simulated on the system. When a Vuser reaches the rendezvous point, the Controller retains it until all the Vuser participating in the collection arrives. When the set condition is met, Controller releases the Vuser, which can result in very dense user actions or requests of the same kind. After Vuser is released from the collection, the next task in the script is executed. The rendezvous point is typically created at the beginning of the user transaction. Rendezvous points can only be added in the Action part of the script, not the init or end part.

Lr_rendezvous ("roll call")

How to set the rendezvous point-record login testlink script as an example:

1. Select run Virtual User Generator from the menu, select Web (HTTP/HTML) protocol in the New Virtual User window, and click the "Create" button.

two。 Enter the url address http://192.168.1.251/testlink/login.php?note=expired to be recorded in the pop-up window, select "Record into Action" as vuser_init, click OK to officially start recording, and then automatically open the login main page.

3. Click the toolbar "pause" button to suspend recording, and select "Record into Action" as Action, enter the user name XXX and password XXX on the login main page, click the "login" button to log in, and click the toolbar "stop" button to end recording after successful login.

4. In the Action section of the script, right-select "Insert → Start Transaction" to pop up a dialog box, enter a transaction name login, click OK, after the "Start Transaction" insertion is complete, you also need to insert a "End Transaction" to identify the end of the transaction.

5. Insert the rendezvous point before starting the transaction, right select "Insert" → "rendezvous" pop-up dialog box, enter the name of the rendezvous point as login, and click on the OK rendezvous point to set up.

Second, manually set checkpoints

To check whether the web page returned by the web server is correct, VuGen supports inserting Test/Imag checkpoints in the script. There are two kinds of pictures and text for checkpoints. Can be implemented with three functions: web_find () web_reg_find () web_p_w_picpath_check () 1.web_find () function function: find the corresponding content parameters in the HTML page for example: web_find ("web_find", "RighOf=a", "LeftOf=b", "What=name", LAST); parameter explanation: "web_find" defines the name of the lookup function. "LeftOf" and "RighOf=" are used to define the left and right boundaries of the lookup characters; "What=" defines what to find. For example, the meaning of the above parameter example is to find the information function usage of the left boundary is b, the right boundary is a, and the content is name: this function is looking for the content in the page, so it should be placed after the content you are looking for. Note: 1. When using this function, check Enable Image and text check in Vuser- > Run-Tme Settings, which is unchecked by default. two。 Functions can only be found in scripts recorded in HTML mode. Find out whether the user logged in to testlink success information-Testlink 1.8.5 [test desingner] 1. Switch to the Tree view view, select an item in the action tree menu that needs to be inserted into the checkpoint, then right-click and select Insert after before the operation is executed, as shown in the figure:

two。 Select "Test Check" in the pop-up dialog box, click "OK" to display the Text Check Properties dialog box, fill in the "search for" to find the information "TestLink 1.8.5: XXX [test designer]", and click "OK" to finish adding the text checkpoint.

3. Switch to script view view, you can see insert test text checkpoint function web_find (), click the "playback" button to search for the text you want to query, in the replay Log log you can see Action.c (38): "web_find" successful. 1 occurrence (s) of "TestLink 1.8.5: XXX [test designer]" found (RightOf= "", LeftOf= "") [MsgId: MMSG-27196]

Action.c (38): web_find was successful [MsgId: MMSG-26392]

2. Web_reg_find () function

Function: find the corresponding content parameters in the cache, for example: web_reg_find ("Search=Body", "SaveCount=ddd", "Test=aaa", LAST); parameter explanation: 1.Search is used to define the search scope. Default All. You can also select "headers" or "body" section.

2.SaveCount defines the name of the lookup count variable, which records the number of times the lookup content appears in the cache. You can use this value to determine whether the content to be found is found or not. 3.Text is used to define the lookup content 4.Fail if specifies to report an error in any case. There are two options: "NotFound" and "Found".

A. web_reg_find ("Text=testlink", "Fail=NotFound", LAST); or B. web_reg_find ("Text=testlink", "Fail=Found", LAST); Code idea: 1. "testlink" is the text you want to check; 2. If the A code: the script executes here, if no string of check is found, the script will FAIL and stop execution. On the contrary, it will be implemented all the time. 3. If the B code: the script executes here, if the string of check is found, the script will FAIL and stop execution. On the contrary, it will be implemented all the time. Function usage: this function looks for the corresponding content in the cache, so it should be placed before the content is found. Find whether the user XXX logged in to testlink success information-Testlink 1.8.5 [test desingner] 1. Switch to the Tree view view, select an item in the action tree menu that needs to insert a text checkpoint, then right-click and select Insert before before inserting the operation, as shown in the figure:

two。 Select "web_reg_find" in the pop-up dialog box, click "OK" to appear the Find Text dialog box, fill in the search information "TestLink 1.8.5: XXX [test designer]" in "search for specific text", set the query scope default "All" in "search in", define the Savecount count variable as "regcheck", Fail if select "NotFound" and click "OK" to complete the addition of test checkpoints.

3. Switch to script view view, you can see insert test text checkpoint function web_reg_find (), click the "playback" button to search for the text you want to query, in the replay Log log you can see Action.c (29): Registered web_reg_find successful for "Text=TestLink 1.8.5: XXX [test designer]" (count=1) [MsgId: MMSG-26364]

Checkpoint-print verification web_reg_find () function: lr_start_transaction ("login"); web_submit_data ("login.php_2", "Action= http://192.168.1.251/testlink/login.php", …" LAST)

Web_reg_find ("Fail=NotFound", "Search=All", "SaveCount=regcheck", "Text=TestLink 1.8.5: XXX [test designer]", LAST); web_url ("index.php",... LAST); / / determine whether the regcheck is greater than 1; if it is greater than 1, the check result is correct, and print with lr_output_message, which can be viewed during debugging / / if the check result is wrong, print with lr_error_ message, you can display the error if (atoi (lr_eval_string ("{regcheck}")) > 0) {lr_output_message ("success!") in the errors of control. ;} else {lr_error_message ("failure");} lr_end_transaction ("login", LR_AUTO)

The function of the 3.web_p_w_picpath_check () function is to find a specific picture on the page. Parameter description: web_p_w_picpath_check ("web_p_w_picpath_check", "Alt=", "Src=", LAST); parameter explanation: the values of "Alt" and "Src" directly take the values of the corresponding parameters of the picture in the web source code.

Src represents the path of the picture file, and alt represents the alternative display text of the picture (right-click on the page to check the source file to find the src and alt values of the picture) function usage: this function is to find the corresponding content in the cache, so it should be placed before the search content. Note: when using this function, check Enable Image and text check in Vuser- > Run-Tme Settings. For specific operations, please see the notes in web_find (). For example, find users using the testlink icon-company_logo.png 1. Switch to the Tree view view, select an item in the action tree menu that needs to insert a text checkpoint, then right-click and select Insert before before inserting the operation, as shown in the figure:

two。 Select "Image Check" in the pop-up dialog box, click "OK" to appear the Image Check Properties dialog box, fill in the alternative display text "Company logo" in "ALT attr", and fill in the path of the picture "gui/themes/default/p_w_picpaths/company_logo.png" in "SRC att". Click "OK" to finish adding the picture checkpoint.

3. Switch to script view view, you can see insert p_w_picpath image checkpoint function web_p_w_picpath_check () function, click the "playback" button to search for the image you want to query, in the replay Log log you can see "web_p_w_picpath_check" succeded (1 occurrence (s) found. Alt= "Company logo", src= "gui/themes/default/p_w_picpaths/company_logo.png") 3. Automatic checkpointSometimes we need to make sure that every request contains a checkpoint. however, it is very troublesome to add checkpoint functions manually. You can use automatic checkpointing rules. By establishing a new rule, you can check all the returned contents during playback. For example: find out whether each page of the login testlink script contains the image p_w_picpaths/company_logo.png. 1. Open the "Run-time settings/ContentCheck", click the "New Application" button to add an application, then add the corresponding rules under the application, and click the "New rule" button. Fill in the Search for text to check the content "p_w_picpaths/company_logo.png", you can also fill in the following search by prefix and suffix need to check the boundary, case-sensitive can be selected to Match case, set Fail if to Not Found, click the "OK" button. Figure: when running a script, if the code returned by a page does not contain p_w_picpaths/company_logo.png, you will see the following error: Action.c (10): Error-26370: ContentCheck Rule "Rule_1" in Application "discuz" triggered. Text "p_w_picpaths/company_logo.png" not matched [MsgId: MERR-26370]

Action.c (10): web_submit_data ("login.php_2") highest severity level was "ERROR", 135body bytes, 377header bytes [MsgId: MMSG-26388]

If the returned code contains mages/company_logo.png, no prompt will appear. Through automated checkpoints, you can easily verify the content that appears regularly on the page. 4. Replay Log common information description 1. Web_find () and web_p_w_picpath_check () function log information (these two log information is the same, but the output function name and parameters are different) 1) information 1 Warning-27077: The "vuser_init" section contains web function (s) when the "Simulate a new user on each iteration" Run-Time Setting is ON. The message appears in This may produce unpredictable results with multiple iterations [MsgId: MWAR-27077]: simulate a new user on each iteration Action.c (5): Verification checks not enabled. Web_find is skipped. The message appears in See the 'Run-time settings/Preferences/Checks' [MsgId: MMSG-27197]: it means that Enable Image and text check 2) message 2 is not checked.

Action.c (5): Error-27195: "web_find" failed. 0 occurrence (s) of "Test Project" found (RightOf= "a", LeftOf= "b") [MsgId: MERR-27195] Action.c (5): web_find highest severity level was "ERROR" [MsgId: MMSG-26391] Replay Log Common Information description: Action.c (6): Error-27191: "web_p_w_picpath_check" failed (0 occurrence (s) found. Alt= "123", Src=" 123") [MsgId: MERR-27191] Action.c (6): web_p_w_picpath_check highest severity level was "ERROR" [MsgId: MMSG-26391] this message appears, indicating that the content you are looking for has not been found. Then try the following operations in turn: 1) check whether the information of the parameters is written correctly; 2) if it is web_find (), check whether the location of the function is behind what you are looking for; and 3) if it is web_p_w_picpath_check (), check the source code of the picture to see if it is a picture on this page, it is likely that the picture is selected incorrectly, that is, the selected picture does not belong to the page. 3) Information 3 Action.c (6): "web_p_w_picpath_check" succeeded (1 occurrence (s) found. Alt= "Company logo", Src= "company_logo.png") [MsgId: MMSG-27192] Action.c (6): web_p_w_picpath_check was successful [MsgId: MMSG-26392] Action.c (38): "web_find" successful. 1 occurrence (s) of "TestLink 1.8.5: XXX [test designer]" found (RightOf= "", LeftOf= "") [MsgId: MMSG-27196] Action.c (38): web_find was successful [MsgId: MMSG-26392] this message appears The description content and picture have been found. 2. Log information of web_reg_find () function 1) Information 1 Action.c (29): Registered web_reg_find successful for "Text=TestLink 1.8.5: XXX [test designer]" (count=1) [MsgId: MMSG-26364] this information appears 2) Information 2 Action.c (11): Error-26366: "Text=ABC" not found for web_reg_find [MsgId: MERR-26366] Action.c (11): web_submit_data ("login.php_2") highest severity level was "ERROR", 135body bytes, 377 header bytes [MsgId: MMSG-26388] this information is displayed in red on the replay log page, indicating that no content was found. When this occurs, try the following two operations: 1) whether the information of the parameter is correct 2) check to see if the function precedes what you are looking for.

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