syntax error near unexpected token `(‘

You may face this issue when you try to execute a command on the Linux shell. I faced this issue when trying to execute the following DB2 command on the server Linux server using the putty shell:

db2text create index someindex for text on someTable(someField) CONNECT TO someDB;

In order to fix this issue, I have to set \ before every ( as shown below:

db2text create index someindex for text on someTable\(someField\) CONNECT TO someDB;

Another solution is to add double quotes on the command as follows:

db2text "create index someindex for text on someTable(someField) CONNECT TO someDB";

Getting the Linux version and distribution that you are using

Sometimes, you may not have the information of the Linux server that you are deploying your applications on. In order to get the Linux version and distribution, all what you need to do is to use the cat command as follows:

cat /etc/*-release

The distribution and version information are stored in the /etc directory with the pattern *-release.

Converting the JsTestDriver coverage files to HTML Reports

In this post, I will show you the detailed steps that are required to convert the JsTestDriver LCOV coverage files to HTML reports. Before reading this post, I recommend you to read this post first “Generating Test Reports using JsTestDriver“.

First of all, you need to download the LCOV visualizer from: http://ltp.sourceforge.net/coverage/lcov.php.

Then install the downloaded rpm file in your Linux Redhat environment using the following command line:

rpm -i lcov-1.9-1.noarch.rpm

To check that the tool is installed correctly, run the genhtml command, you should see the following output:

After that you can start running the HTML report generation command:

genhtml jsTestDriver.conf-coverage.dat

Note that you have to make sure that the paths of the JavaScript source files are correct in the jsTestDriver.conf-coverage.dat file, otherwise you will face the genhtml: ERROR: cannot create directory !

You should see the LCOV visualizer tool is generating the testing report as indicated in the screenshot below:

After the successful generation of the HTML report, click the index.html file in the parent folder to see the HTML report:

As shown in the previous screenshot, the report covers the three main code coverage criteria:
1. Line coverage (statement coverage) which represents the percentage of the source code statements that are tested.
2. Function coverage which represents the percentage of the functions that are tested.
3. Branch coverage which represents the percentage of code branches that are tested.

I attached here the test report files for your reference.

Resolution of genhtml: ERROR: cannot create directory !

When using the LCOV Visualizer tool to generate the HTML reports from the JsTestDriver lcov coverage (.dat) file (usually jsTestDriver.conf-coverage.dat) using the genhtml command:

genhtml jsTestDriver.conf-coverage.dat

You may find the following error:

mkdir: cannot create directory `': No such file or directory
genhtml: ERROR: cannot create directory !

This error happens because the paths of the JavaScript files are not correct in the (.dat) file. To fix this error, open the (.dat) file, you will find its content as follows:

SF:<<Path1>>
DA:1,1
DA:2,1
DA:5,1
...
end_of_record
SF:<<Path2>>
DA:1,1
DA:2,0
DA:5,1
...
end_of_record

Then edit the SF: values with the correct paths of the JavaScript source (and testing) files and execute the genhtml command again to generate the HTML testing report.