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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
<HTML
><HEAD
><TITLE
>Our first automated tests</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.64
"><LINK
REL="HOME"
TITLE="DejaGnu"
HREF="book1.html"><LINK
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TITLE="Getting DejaGnu up and running"
HREF="gettingup.html"><LINK
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TITLE="Create a minimal project, e.g. calc"
HREF="x227.html"><LINK
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TITLE="A first remote test"
HREF="x319.html"></HEAD
><BODY
CLASS="SECT1"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
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><DIV
CLASS="NAVHEADER"
><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>DejaGnu: The GNU Testing Framework</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="x227.html"
><<< Previous</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
>Getting DejaGnu up and running</TD
><TD
WIDTH="10%"
ALIGN="right"
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><A
HREF="x319.html"
>Next >>></A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="AEN276"
>Our first automated tests</A
></H1
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN278"
>Running the test for the calc example</A
></H2
><P
>Now we are ready to call the automated tests </P
><DIV
CLASS="EXAMPLE"
><A
NAME="AEN281"
></A
><P
><B
>Example 7. Sample output of runtest in a configured directory</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>dgt:~/dejagnu.test$ make check
make check-DEJAGNU
make[1]: Entering directory `/home/dgt/dejagnu.test' srcdir=`cd . && pwd`; export srcdir; \
EXPECT=expect; export EXPECT; \ runtest=runtest; \
if /bin/sh -c "$runtest --version" > /dev/null 2>&1; then \
$runtest --tool calc CALC=`pwd`/calc --srcdir ./testsuite ; \
else echo "WARNING: could not find \`runtest'" 1>&2; :;\
fi
WARNING: Couldn't find the global config file.
WARNING: Couldn't find tool init file
Test Run By dgt on Sun Nov 25 21:42:21 2001
Native configuration is i586-pc-linux-gnu
=== calc tests ===
Schedule of variations:
unix
Running target unix
Using /usr/share/dejagnu/baseboards/unix.exp as board description file for target.
Using /usr/share/dejagnu/config/unix.exp as generic interface file for target.
Using ./testsuite/config/unix.exp as tool-and-target-specific interface file.
Running ./testsuite/calc.test/calc.exp ...
FAIL: multiply2 (bad match)
=== calc Summary ===
# of expected passes 5
# of unexpected failures 1
/home/Dgt/dejagnu.test/calc version Version: 1.1
make[1]: *** [check-DEJAGNU] Fehler 1
make[1]: Leaving directory `/home/Dgt/dejagnu.test' make: *** [check-am] Fehler 2</PRE
></TD
></TR
></TABLE
></DIV
><P
>Did you see the line “FAIL:“? The test cases for calc catch the bug in the calc.c file. Fix the error in calc.c later as the following examples assume a unchanged calc.c.</P
><P
>Examine the output files calc.sum and calc.log.
Try to understand the testcases written in ~/dejagnu.test/testsuite/calc.test/calc.exp.
To understand Expect you might take a look at the book "Exploring Expect",
which is an excellent resource for learning and using Expect. (Pub: O'Reilly, ISBN 1-56592-090-2)
The book contains hundreds of examples and also includes a tutorial on Tcl.
Exploring Expect is 602 pages long. </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN286"
>The various config files or how to avoid warnings</A
></H2
><P
>DejaGnu may be customized by each user. It first searches for a file called ~/.dejagnurc. Create the file ~/.dejagnurc and insert the following line:</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>puts "I am ~/.dejagnurc"</PRE
></TD
></TR
></TABLE
><P
>Rerun make check. Test whether the output contains "I am ~/.dejagnurc".
Create ~/my_dejagnu.exp and insert the following line:</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>puts "I am ~/my_dejagnu.exp"</PRE
></TD
></TR
></TABLE
><P
>In a Bash-Shell enter</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>dgt:~/dejagnu.test$ export DEJAGNU=~/my_dejagnu.exp</PRE
></TD
></TR
></TABLE
><P
>Run “make check” again. The output should not contain
“WARNING: Couldn't find the global config file.”.
Create the sub-directory lib. Create the file “calc.exp” in it and insert the following line:</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>puts "I am lib/calc.exp"</PRE
></TD
></TR
></TABLE
><P
>The last warning “WARNING: Couldn't find tool init file”
should not be part of the output of make check.
Create the directory ˜/boards. Create the file ˜/boards/standard.exp and insert the following line:</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>puts "I am boards/standard.exp"</PRE
></TD
></TR
></TABLE
><P
>If the variable DEJAGNU is still not empty then the (abbreviated) output of “make check” should look like this:</P
><DIV
CLASS="EXAMPLE"
><A
NAME="AEN299"
></A
><P
><B
>Example 8. Sample output of runtest with the usual configuration files</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>dgt:~/dejagnu.test$ make check
<...>
fi
I am ~/.dejagnurc
I am ~/my_dejagnu.exp
I am lib/calc.exp
Test Run By dgt on Sun Nov 25 22:19:14 2001
Native configuration is i586-pc-linux-gnu
=== calc tests ===
Using /home/Dgt/boards/standard.exp as standard board description\
file for build.
I am ~/boards/standard.exp
Using /home/Dgt/boards/standard.exp as standard board description\
file for host.
I am ~/boards/standard.exp
Schedule of variations:
unix
Running target unix
Using /home/Dgt/boards/standard.exp as standard board description\
file for target.
I am ~/boards/standard.exp
Using /usr/share/dejagnu/baseboards/unix.exp as board description file\
for target.
<...></PRE
></TD
></TR
></TABLE
></DIV
><P
>It is up to you to decide when and where to use any of the above
mentioned config files for customizing.
This chapters showed you where and in which order the different config
files are run.</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN303"
>When trouble strikes</A
></H2
><P
>Calling runtest with the '-v'-flag shows you in even more details which files are searched in which order. Passing it several times gives more and more details. </P
><DIV
CLASS="EXAMPLE"
><A
NAME="AEN306"
></A
><P
><B
>Example 9. Displaying details about runtest execution</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>runtest -v -v -v --tool calc CALC=`pwd`/calc --srcdir ./testsuite</PRE
></TD
></TR
></TABLE
></DIV
><P
>Calling runtest with the '--debug'-flag logs a lot of details to dbg.log where you can analyse it afterwards. </P
><P
>In all test cases you can temporary adjust the verbosity of information by adding the following Tcl-command:</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>set verbose 9</PRE
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN312"
>Testing “Hello world” locally</A
></H2
><P
>This test checks, whether the built-in shell command “echo Hello world”
will really write “Hello world” on the console.
Create the file ~/dejagnu.test/testsuite/calc.test/local_echo.exp.
It should contain the following lines</P
><DIV
CLASS="EXAMPLE"
><A
NAME="AEN315"
></A
><P
><B
>Example 10. A first (local) test case</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>set test "Local Hello World"
send "echo Hello World"
expect {
-re "Hello World" { pass "$test" }
}</PRE
></TD
></TR
></TABLE
></DIV
><P
>Run runtest again and verify the output “calc.log”</P
></DIV
></DIV
><DIV
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><A
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><<< Previous</A
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ALIGN="center"
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><A
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>Home</A
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><A
HREF="x319.html"
>Next >>></A
></TD
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><TD
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ALIGN="left"
VALIGN="top"
>Create a minimal project, e.g. calc</TD
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ALIGN="center"
VALIGN="top"
><A
HREF="gettingup.html"
>Up</A
></TD
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ALIGN="right"
VALIGN="top"
>A first remote test</TD
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