CN1980157A - Cascade on-line detection system and detection method - Google Patents

Abstract

The system includes test server, test terminal, information system of matrix group for grasping wire, matrix group for grasping wire, and test head. The matrix group for grasping wire includes one or more matrices for grasping wire. Through multiple test buses each matrix can be cascaded. Using context information of matrix saved in information system of matrix group for grasping wire, the test server can control matrix effectively so as to guarantee that multiple pairs of wire will not be grasped by a pair of test bus at same time, and one matrix group for grasping wire shares a test head to carry out test. The invention reduces cost of system device, cost for building network, and maintenance cost effectively.

Description

A kind of cascade on-line detection system and method for testing thereof

Technical field

The present invention relates to a kind of Online Transaction Processing and method of testing thereof of access node of Access Network, relate in particular to a kind of cascade on-line detection system and method for testing thereof.

Background technology

Along with ADSL is used by large tracts of land, the stubborn problem that operator faces is exactly how effectively to safeguard the Access Network network.Under the small-scale situation, manual type is the traditional operation maintenance pattern of operator.This mode has the too high defective of tangible operation cost, under the particularly extensive operating environment.Effectively one of method that reduces O﹠M cost is exactly to adopt the automatic on-line test macro.

The basic principle of Online Transaction Processing is exactly that the physical device (such as relay) on the utilization control access point is transferred to physical circuit on the measuring head; Then, measuring head can be tested circuit, judges that each functional part of Access Network (comprising: the business router of modem, loop line, DSLAM, BRAS and core network) whether break down, even can judge it is what fault.The key feature of forming Online Transaction Processing comprises: test terminal, testing server, measuring head, line capture module.Line capture module and measuring head can be built among the DSLAM, also can be independent of DSLAM.

In existing Online Transaction Processing, a line capture module uses a measuring head individually, and this scheme has significant limitation.On the one hand, measuring head price comparison costliness, measuring head of a line capture module, equipment cost is too high; On the other hand, total subscribers feeder of general single DSLAM is no more than 1000 lines.A measuring head is safeguarded 1000 lines, and utilance is obvious low excessively.Therefore, this scheme is for operator, and it is too high that equipment cost, maintenance cost seem, particularly when implementing on-line testing on a large scale.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of cascade on-line detection system and method for testing thereof, utilize external or the built-in testing head, by built-in or external line capture module, realize the shared measuring head of a plurality of line capture modules, whether each function point of test access network breaks down, and then reaches the purpose that reduces system equipment cost, networking cost and maintenance cost effectively.

To achieve these goals, the invention provides a kind of cascade on-line detection system, be used for the automatic on-line test of the access node of Access Network, its characteristics are, this Online Transaction Processing includes: the test terminal, testing server, line capture module group information system, the line capture module group, measuring head, comprise one or more line capture module in each this line capture module group, each line capture module by one or more pairs of test bus cascades together, and all line capture modules in each line capture module group are connected on the measuring head by test bus, shared this measuring head, and this test terminal, line capture module group information system, each line capture module in the line capture module group, measuring head communicates to connect with this testing server respectively; Wherein,

This test terminal is used to receive user's input, and user's input is converted to message flow, sends to this testing server, and reception result from this testing server is shown to the user simultaneously;

This testing server, be used to receive the test request of this test terminal, request is decomposed into different classes of message, and by this line capture module group information system of inquiry, in the time can grabbing line, control and set up the communication channel between this testing server and this line capture module, this testing server and this measuring head, carry out on-line testing;

This line capture module group information system is preserved all information of each line capture module group in it, and is used to accept the query requests of this testing server, judges whether to grab line according to the information of being preserved;

This line capture module group, its each line capture module is connected with each function point of this Access Network as grabbing line point;

This measuring head obtains the parameter information of this each function point of Access Network when being used for on-line testing.

Above-mentioned cascade on-line detection system, its characteristics are that each line capture module includes two interfaces in this line capture module group, upstream Interface and downstream interface, and these two interfaces all are connected on the interior test bus of this line capture module.

Above-mentioned cascade on-line detection system, its characteristics are, selected line capture module is as the root line capture module in this line capture module group, the upstream Interface of this root line capture module is connected on this measuring head, the downstream interface of this root line capture module is connected to the upstream Interface of next line capture module, the downstream interface of next line capture module is received the upstream Interface of next line capture module again, connects successively to realize cascade.

Above-mentioned cascade on-line detection system, its characteristics are, this cascade on-line detection system also comprises a backboard, and this backboard is provided with backplane test bus, and the test bus of grabbing the line lesser calorie on each line capture module is linked on this backplane test bus by relay switch.

Above-mentioned cascade on-line detection system, its characteristics are that the line lesser calorie of grabbing in this line capture module group on each line capture module can be external, perhaps ply-yarn drill that also can corresponding access network equipment, place the inside of the ply-yarn drill of this access network equipment, perhaps place on the separator veneer of this Access Network.

Above-mentioned cascade on-line detection system, its characteristics are, also comprise in this line capture module group: one grabs the line traffic control unit, is used for centralized control this each and grabs the line lesser calorie.

Above-mentioned cascade on-line detection system, its characteristics are, are grabbing on the line lesser calorie, and each circuit can be placed a plurality of relays, be used to realize circuit unwrapping wire state, overlap joint state, grab interior line states and the state of grabbing between the external line state switches; And, on backplane test bus, also be provided with a total switch relay, be in normally off under this total switch relay normal condition, the bus that makes backplane test bus and each grab the line lesser calorie disconnects, and the bus of while and down direction is in connection status; This total switch relay is in out state when grabbing line, make this backplane test bus only and come from one of them bus of grabbing the line lesser calorie and link together, simultaneously and the disconnection of the bus of down direction.

Above-mentioned cascade on-line detection system, its characteristics are, this testing server also has an APP interface, dock with an inquiry system and a fault processing system, be used to accept the telephone number input of test terminal, after this inquiry system inquiry, obtain the subscriber's line correspondence line capture module ID, grab the sequence number of line lesser calorie, corresponding particular user line number, and and this fault processing system combination, by the troubleshooting platform, obtain test request automatically.

Above-mentioned cascade on-line detection system, its characteristics are that the stored information of this line capture module group information system comprises: the information of the measuring head that each line capture module information in each line capture module group, the state of the current circuit of each line capture module and line capture module group are shared.

To achieve these goals, the present invention also provides a kind of method of testing of utilizing above-mentioned cascade on-line detection system, and its characteristics are that this method comprises the steps:

Step 1, test terminal send test request to testing server;

Step 2, testing server decomposes the test request that submit to the test terminal, resolves into and grabs line, test and three message of unwrapping wire, whether can grab line to the inquiry of line capture module group information system then;

Step 3, line capture module group information system judges whether to grab line, and return results is given testing server;

Step 4, if line capture module group information system responds successfully, testing server will be grabbed line message by the communication channel of creating and be sent to line capture module so;

Step 5, this line capture module response message is given testing server;

Step 6, testing server response message are changed the line status of this line capture module to line capture module group information system;

Step 7, line capture module group information system response message is given testing server, the success of report change state;

Step 8, testing server sends to measuring head by the communication channel of having set up with test post, starts measuring head and begins test;

Step 9, measuring head returns test data to testing server;

Step 10, after test finishes, testing server notice line capture module unwrapping wire;

Step 11, the line capture module feedback message is given testing server, the success of expression unwrapping wire;

Step 12, testing server notice line capture module group information system change line state information;

Step 13, line capture module group information system feedback message is given testing server, and whether announcement is upgraded successful;

Step 14, testing server feeds back to the test terminal with test result.

The present invention overcomes the deficiency of prior art, and a kind of system architecture and method of testing thereof that realizes the on-line testing of cascade is provided, and can reduce equipment cost and maintenance cost so that a plurality of DSLAM shares a measuring head.

Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.

Description of drawings

Fig. 1 is the Organization Chart of cascade on-line detection system of the present invention;

Fig. 2 is the schematic diagram under the Online Transaction Processing test bus cascade normal condition of the present invention (unwrapping wire state);

Fig. 3 A～3D is respectively the following four kinds of line statuss of test bus cascade of the present invention: unwrapping wire state, overlap joint state, grab interior line states, grab the schematic diagram of external line state;

Fig. 4 is the message flow flow chart of a test of cascade on-line detection system of the present invention.

Embodiment

As shown in Figure 1, cascade on-line detection system of the present invention comprises with lower member: test terminal (Test-Client is called for short TC), testing server (Test-Server, be called for short TS), line capture module (TAMTest-Access-Matrix is called for short TAM) group (TAM Group is called for short TAMG), line capture module group information system (TAMG DataBase, be called for short TAMG-DB), measuring head (Test-Head is called for short TH).TAMG is meant physically relatively near one group of TAM of (in general at same machine room), cascades up by test bus (as solid line among the figure).By test bus, all TAM of TAMG are connected on the measuring head, a shared measuring head.If exist many in the test bus to test bus, also can be connected to one or more measuring head, contextual information by the line capture module in the line capture module information system, preserved, testing server can be controlled line capture module effectively, guarantees can not occur many circuit to be caught on a pair of test bus simultaneously.The situation of having only a pair of test bus below only is discussed, and many situations to test bus are the stack of monobus situation, do not repeat them here.

In the present invention, TAMG and TH are the software and hardware entities, that is to say that they are combinations of hardware and software.TC, TS and TAMG-DB are software entitys, and they can independently exist, and also can be together with each other.They alternately as shown in Figure 1, all TAM in the TAMG are connected on the TH by test bus (as solid line among the figure), shared this TH, and this TC, TAMG-DB, TAM, TH communicate to connect by logical channel (as dotted line among the figure) with TS respectively.

In the present invention, each TAM includes two interfaces, UpLink and DownLink.These two interfaces all are connected on the interior test bus of TAM, see Fig. 2.Selected TAM is as root TAM in TAMG, and its UpLink receives TH, and DownLink receives the UpLink of next TAM.The DownLink of next TAM receives the UpLink of next TAM again, and the like.Among the present invention, hardware needs to guarantee: when the circuit of certain TAM was caught on the test bus in the TAM, close beta bus requirements and DownLink mouth disconnected, and avoid tap, can guarantee the accuracy of testing.

And in TAMG, at any time, can only have a circuit at most is not the unwrapping wire state.For this reason, the present invention has designed TAMG-DB, in this software entity, has deposited the information of TAMG, and which TAM comprises has among each TAMG, and which TH that the state of current circuit and TAMG share is.Each TS at first inquires about TAMG-DB sending out when grabbing the line order, and whether existing circuit exists is grabbed line states, and need obtain the information of the TH that TAMG shares.

Below in conjunction with accompanying drawing the enforcement of technical scheme is further described in detail.

In cascade on-line detection system of the present invention, line status comprises four kinds:

(a) unwrapping wire state;

(b) overlap joint state;

(c) grab interior line states;

(d) grab external line state;

Four kinds of situations of difference corresponding diagram 3A～3D.As Fig. 3 A, the unwrapping wire state is exactly the state when usually not testing.Other the three kinds line states of grabbing for corresponding test are as Fig. 3 B～3D.When reality realizes, can be at a back plate design backplane test bus, by relay switch, each test bus of grabbing on the line lesser calorie is linked into backplane test bus.Grabbing the line lesser calorie can be external, and ply-yarn drill that also can corresponding DSLAM equipment places DSLAM ply-yarn drill inside, perhaps on the separator veneer of DSLAM.Also can place outside the DSLAM.Subscriber's line at first enters grabs the line lesser calorie, enters the separator card again from grabbing the output of line lesser calorie then.In practical design, in order to control all line lesser calories of grabbing effectively, can increase by one and grab the line traffic control veneer, each grabs the line lesser calorie control of concentrating by the control veneer.Upper layer software (applications) can place grabs among the line traffic control unit, and each grabs the line lesser calorie can an installing bottom layer hardware driving software.So both can simplify software construction, be convenient to centralized management, can save equipment cost again.Grabbing on the line lesser calorie, each circuit can be placed a plurality of relays (at least two), by the control to each relay, can realize four kinds of states of circuit.In detail can be referring to patent CN200310109826.3.

On backplane test bus, can be provided with a total switch relay, (just do not grab line among the TAM) under the normal condition, this relay is in normally off, the bus that makes backplane test bus and each grab the line lesser calorie disconnects, and the bus of while and down direction (DownLink direction just) is in connection status.Referring to Fig. 2 and Fig. 3 A, at this moment, among the TAMG all TAM by backplane test bus with external bus cascade be in the same place.When grabbing line, this relay is in out state, makes backplane test bus and link together from the bus of grabbing line lesser calorie (only having), simultaneously and the disconnection of the bus of down direction, and referring to Fig. 3 B～3D.Grab interior lines and can be used for PPPoE emulation, Ping emulation, ATU-R emulation; Grab outside line and can be used for ATU-C emulation, Digital Multi-Meter Test, Frequency Response Test, TDR Test, DMT, NSE, LC and LD test etc.; Overlap joint can be used for line frequency configuration and noise monitoring test.

Online Transaction Processing mainly comprises following several message:

1. grab line message and can use five-tuple＜" SEL-LINE ", TAM-ID, slot, port, sel-type expression, " SEL-LINE " expression News Category is to grab line; TAM-ID represents the TAM that certain is specific, can use IP address, MAC Address or other identifiers with uniqueness to represent; Slot represents to grab the sequence number of line lesser calorie; Port represents corresponding particular user circuit; Sel-type ∈ { grabs interior lines, grabs outside line, overlap joint }.

2. unwrapping wire message can be used four-tuple＜" CLR-LINE ", TAM-ID, slot, port 〉, " CLR-LINE " expression unwrapping wire News Category, other the same.

Test post can use quadruple notation＜" TST-CMD " [, TH-ID], Cmd-Str[, Line-ID] 〉, " TST-CMD " expression test command message, TH-ID represents the ID of measuring head, can represent with IP address, MAC Address or other identifiers with uniqueness, if mail to TS from TC, TH-ID is optional; Cmd-Str is a test command, and is relevant with measuring head, can be the character string of structure words, deposits command type and parameter.Line-ID is optionally, if mail to TS from TC, need be with this element; Otherwise need not.Line-ID can be＜TAM-ID slot, port〉form, also can be a telephone number, even also can be the circuit representation of MDF.

4. response message can use tlv triple to represent＜" MSG-RSP " Rsp-Code, Rsp-Data 〉, " MSG-RSP " expression message response News Category, Rsp-Code represents response code, as to grab line successfully still be to fail, Rsp-Data represents response data, as test data.

What write above is main News Category, certainly, in order to enhance system function, can also add other News Category.Such as, in order to increase the reliability of different software entity communication, can between point to point link, add the hello News Category.

To specifically describe each entity and function thereof among the present invention below:

1.TC TC receives user's input, and user's input is converted to message flow, sends to TS.Reception result from TS is shown to the user simultaneously.TC is the program of a GUI form often.Have communication function, can carry out network service with TS.

2.TS TS is the core of whole Online Transaction Processing framework, it accepts the test request of TC, and request is decomposed, and is decomposed into to grab line, test and three message of unwrapping wire.Before grabbing line, inquiry TAMG-DB judges whether to grab line, if can not, directly to TC response failure; But also need from TAMG-DB, obtain the information of TH-ID.TS is the communication channel of foundation and TAM, TH on one's own initiative, the communication request of wait TAM that also can be passive.Communication channel generally can be based on TCP or UDP.TS can also comprise expert system, and test data is analysed in depth, and gives the unspecialized evaluation result of user.TS can also use APP interface and 97 systems, 112 system dockings, so just can accept the telephone number input of TC, after 97 system queries, obtains TAM-ID, the slot of subscriber's line correspondence and port number; With the combination of 112 systems, can pass through 112 troubleshooting platforms, obtain test request automatically, wide and narrow strip O﹠M system can unified management like this.

3.TAMG-DB TAMG-DB has preserved TAM information among each TAMG, which circuit is in and grabs line states among each TAMG, the TH-ID of the TH that each TAMG shares.It accepts the query requests of TS, judges whether to grab line, and return results.What receive simultaneously that TS initiates grabs line and unwrapping wire message, change line state information.It should be noted that: to specific TAMG, TAMG-DB initiates to grab at TS/unwrapping wire and receiving receives and grab/the unwrapping wire response duration can not accept grabbing/the unwrapping wire request of other, and TAMG-DB need guarantee to grab/atomicity of unwrapping wire and grabbing/unwrapping wire response.

4.TAM TAM grabs the line point, needs communicating by letter of realization and testing server, needs to realize that the hardware relay drives.TAM communicates by letter with testing server and can carry based on TCP/UDP, grabs line/unwrapping wire and response message thereof and can use APP or the encapsulation of TL1 reference format.

5.TH TH is a test point, TH need comprise the software of communicating by letter with testing server and the driver of bottom testing hardware.TH communicates by letter with testing server and can carry based on TCP/UDP, grabs line/unwrapping wire and response thereof and can use APP or the encapsulation of TL1 reference format.

Below in conjunction with Fig. 4, describe a complete test post flow process of cascade on-line detection system of the present invention in detail, can comprise following 14 steps:

1.＜" TST-CMD ", Cmd-Str, Line-ID 〉, from TC to TS.Which kind of test Cmd-Str specifically can represent, as DMM, ATU-R, FR or the like.If need the test of band parameter,, parameter can be put among the Cmd-Str as PPPoE emulation.

2.＜" SEL-LINE ", TAM-ID, slot, port, sel-type 〉, from TS to TAMG-DB.TS decomposes the test request that TC submits to, resolves into and grabs line, test and three message of unwrapping wire.Whether can grab line to the TAMG-DB inquiry then.

3.＜" MSG-RSP ", Rsp-Code 〉, TAMG-DB gives the response of TS.

4.＜" SEL-LINE ", TAM-ID, slot, port, sel-type 〉, from TS to TAM.If TAMG-DB responds successfully, the communication channel (if do not have, so according to TAM-ID be created to the channel of TAM) of TS by having created will be grabbed line message and be sent to TAM so.

5.＜" MSG-RSP ", Rsp-Code 〉, TAM gives the response of TS.

6.＜" MSG-RSP ", Rsp-Code 〉, from TS to TAMG-DB.MSG-RSP changes line status.

7.＜" MSG-RSP ", Rsp-Code 〉, TAMG-DB responds to TS, the success of report change state.

8.＜" TST-CMD ", TH-ID, Cmd-Str 〉, TS is to TH.TS sends to TH (if do not create, creating according to TH-ID so) by the communication channel of having set up with test post, starts TH and begins test.

9.＜" MSG-RSP ", Rsp-Code, Rsp-Data 〉, TH is to TS.TH can constantly return data to TS with this form when test.

10.＜" CLR-LINE ", TAM-ID, slot, port 〉, TS is to TAM.Test finishes, TS notice TAM unwrapping wire.

11.＜" MSG-RSP ", Rsp-Code 〉, TAM feeds back to TS, the success of expression unwrapping wire.

12.＜" MSG-RSP ", Rsp-Code 〉, TS is to TAMG-DB, and TS informs TAMG-DB change line state information.

13.＜" MSG-RSP ", Rsp-Code 〉, TAMG-DB feeds back to TS, and whether announcement is upgraded successful.

14.＜" MSG-RSP ", Rsp-Code, Rsp-Data 〉, TS feeds back to TC with test result.Test result can have been passed through the analysis of expert system.

Above-mentioned 14 flow processs are all flow processs of successful execution of each message, and the unusual execution flow process of other kind has certain variation.Also can run through whole test process alternately between TS and the TC, can be constantly to the state of TC report test.

Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.

Claims (10)

1, a kind of cascade on-line detection system, be used for the automatic on-line test of the access node of Access Network, it is characterized in that, this Online Transaction Processing includes: the test terminal, testing server, line capture module group information system, the line capture module group, measuring head, comprise one or more line capture module in each this line capture module group, each line capture module by one or more pairs of test bus cascades together, and all line capture modules in each line capture module group are connected on the measuring head by test bus, shared this measuring head, and this test terminal, line capture module group information system, each line capture module in the line capture module group, measuring head communicates to connect with this testing server respectively; Wherein,

This test terminal is used to receive user's input, and user's input is converted to message flow, sends to this testing server, and reception result from this testing server is shown to the user simultaneously;

This testing server, be used to receive the test request of this test terminal, request is decomposed into different classes of message, and by this line capture module group information system of inquiry, in the time can grabbing line, set up and control the communication channel between this testing server and this line capture module, this testing server and this measuring head, carry out on-line testing;

This line capture module group information system is preserved all information of each line capture module group in it, and is used to accept the query requests of this testing server, judges whether to grab line according to the information of being preserved;

This line capture module group, its each line capture module is connected with each function point of this Access Network as grabbing line point;

This measuring head obtains the parameter information of this each function point of Access Network when being used for on-line testing.

2, cascade on-line detection system according to claim 1 is characterized in that, each line capture module includes two interfaces in this line capture module group, upstream Interface and downstream interface, and these two interfaces all are connected on the interior test bus of this line capture module.

3, cascade on-line detection system according to claim 2, it is characterized in that, selected line capture module is as the root line capture module in this line capture module group, the upstream Interface of this root line capture module is connected on this measuring head, the downstream interface of this root line capture module is connected to the upstream Interface of next line capture module, the downstream interface of next line capture module is received the upstream Interface of next line capture module again, connects successively to realize cascade.

4, cascade on-line detection system according to claim 3, it is characterized in that, this cascade on-line detection system also comprises a backboard, this backboard is provided with backplane test bus, and the test bus of grabbing the line lesser calorie on each line capture module is linked on this backplane test bus by relay switch.

5, cascade on-line detection system according to claim 4, it is characterized in that, the line lesser calorie of grabbing in this line capture module group on each line capture module can be external, perhaps ply-yarn drill that also can corresponding access network equipment, place the inside of the ply-yarn drill of this access network equipment, perhaps place on the separator veneer of this Access Network.

6, cascade on-line detection system according to claim 5 is characterized in that, also comprises in this line capture module group: one grabs the line traffic control unit, is used for centralized control this each and grabs the line lesser calorie.

7, according to claim 4 or 5 or 6 described cascade on-line detection systems, it is characterized in that, grabbing on the line lesser calorie, each circuit can be placed a plurality of relays, be used to realize circuit unwrapping wire state, overlap joint state, grab interior line states and the state of grabbing between the external line state switches; And, on backplane test bus, also be provided with a total switch relay, be in normally off under this total switch relay normal condition, the bus that makes backplane test bus and each grab the line lesser calorie disconnects, and the bus of while and down direction is in connection status; This total switch relay is in out state when grabbing line, make this backplane test bus only and come from one of them bus of grabbing the line lesser calorie and link together, simultaneously and the disconnection of the bus of down direction.

8, cascade on-line detection system according to claim 7, it is characterized in that, this testing server also has an APP interface, dock with an inquiry system and a fault processing system, be used to accept the telephone number input of test terminal, after this inquiry system inquiry, obtain the subscriber's line correspondence line capture module ID, grab the sequence number of line lesser calorie, corresponding particular user line number, and and this fault processing system combination, by the troubleshooting platform, obtain test request automatically.

9, cascade on-line detection system according to claim 1, it is characterized in that the stored information of this line capture module group information system comprises: the information of the measuring head that each line capture module information in each line capture module group, the state of the current circuit of each line capture module and line capture module group are shared.

10, a kind of method of testing of utilizing the described cascade on-line detection system of claim 1 is characterized in that, this method comprises the steps:

Step 1, test terminal send test request to testing server;

Step 2, testing server decomposes the test request that submit to the test terminal, resolves into and grabs line, test and three message of unwrapping wire, whether can grab line to the inquiry of line capture module group information system then;

Step 3, line capture module group information system judges whether to grab line, and return results is given testing server;

Step 4, if line capture module group information system responds successfully, testing server will be grabbed line message by the communication channel of creating and be sent to line capture module so;

Step 5, this line capture module response message is given testing server;

Step 6, testing server response message are changed the line status of this line capture module to line capture module group information system:

Step 7, line capture module group information system response message is given testing server, the success of report change state;

Step 8, testing server sends to measuring head by the communication channel of having set up with test post, starts measuring head and begins test;

Step 9, measuring head returns test data to testing server;

Step 10, after test finishes, testing server notice line capture module unwrapping wire:

Step 11, the line capture module feedback message is given testing server, the success of expression unwrapping wire:

Step 12, testing server notice line capture module group information system change line state information;

Step 13, line capture module group information system feedback message is given testing server, and whether announcement is upgraded successful;

Step 14, testing server feeds back to the test terminal with test result.

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