1 Unit tests 2 ========== 3 4 The goal is to add tests for *ALL* functions in libcurl. If functions are too 5 big and complicated, we should split them into smaller and testable ones. 6 7 Build Unit Tests 8 ================ 9 10 './configure --enable-debug' is required for the unit tests to build. To 11 enable unit tests, there will be a separate static libcurl built that will be 12 used exclusively for linking unit test programs. Just build everything as 13 normal, and then you can run the unit test cases as well. 14 15 Run Unit Tests 16 ============== 17 18 Unit tests are run as part of the regular test suite. If you have built 19 everything to run unit tests, to can do 'make test' at the root level. Or you 20 can 'cd tests' and then invoke individual unit tests with ./runtests.pl NNNN 21 where NNNN is the specific test number. 22 23 Debug Unit Tests 24 ================ 25 26 If a specific test fails you will get told. The test case then has output left 27 in the log/ subdirectory, but most importantly you can re-run the test again 28 using gdb by doing ./runtests.pl -g NNNN. That is, add a -g to make it start 29 up gdb and run the same case using that. 30 31 Write Unit Tests 32 ================ 33 34 We put tests that focus on an area or a specific function into a single C 35 source file. The source file should be named 'unitNNNN.c' where NNNN is a 36 number that starts with 1300 and you can pick the next free number. 37 38 You also need a separate file called tests/data/testNNNN (using the same 39 number) that describes your test case. See the test1300 file for inspiration 40 and the tests/FILEFORMAT documentation. 41 42 For the actual C file, here's a very simple example: 43 44 ----------------------- start ------------------------------- 45 #include "curlcheck.h" 46 47 #include "a libcurl header.h" /* from the lib dir */ 48 49 static void unit_setup( void ) 50 { 51 /* whatever you want done first */ 52 } 53 54 static void unit_stop( void ) 55 { 56 /* done before shutting down and exiting */ 57 } 58 59 UNITTEST_START 60 61 /* here you start doing things and checking that the results are good */ 62 63 fail_unless( size == 0 , "initial size should be zero" ); 64 fail_if( head == NULL , "head should not be initiated to NULL" ); 65 66 /* you end the test code like this: */ 67 68 UNITTEST_STOP 69 70 ----------------------- end ------------------------------- 71
