Product Version = NetBeans IDE 7.3 (Build 201302132200)
Operating System = Windows 7 version 6.1 running on x86
Java; VM; Vendor = 1.7.0_11
Runtime = Java HotSpot(TM) Client VM 23.6-b04
Cygwin version 1.7.17-1
CUnit version 2.1-2 installed on Cygwin.

Create C project with default settings.
In main.c add function 

int add(int addend, int augend) {
    return (addend + augend);
}

In Projects pane right-click main.c and choose Create Test — New CUnit Test.
In the master select function add(int,int):int to generate tests for it.
Click button Next.

Actual result: Message appears on the bottom of the master panel: "cunit library is not detected. Test compilation might fail".
Expected result: CUnit is detected successfully.

Click button Finish.
Folder Test Files in Projects pane contains node New CUnit Test and file newcunittest.c in it.
Right-click on the project root and choose Test.

Actual result: Building tests fails with such output:

"/usr/bin/make" -f nbproject/Makefile-Debug.mk QMAKE= SUBPROJECTS= .build-conf
make[1]: Entering directory `/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments'
"/usr/bin/make"  -f nbproject/Makefile-Debug.mk dist/Debug/Cygwin-Windows/cunit-experiments.exe
make[2]: Entering directory `/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments'
make[2]: `dist/Debug/Cygwin-Windows/cunit-experiments.exe' is up to date.
make[2]: Leaving directory `/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments'
make[1]: Leaving directory `/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments'
"/usr/bin/make" -f nbproject/Makefile-Debug.mk SUBPROJECTS= .build-tests-conf
make[1]: Entering directory `/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments'
"/usr/bin/make"  -f nbproject/Makefile-Debug.mk dist/Debug/Cygwin-Windows/cunit-experiments.exe
make[2]: Entering directory `/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments'
make[2]: `dist/Debug/Cygwin-Windows/cunit-experiments.exe' is up to date.
make[2]: Leaving directory `/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments'
mkdir -p build/Debug/Cygwin-Windows/tests/TestFiles
gcc       -o build/Debug/Cygwin-Windows/tests/TestFiles/f1 build/Debug/Cygwin-Windows/tests/tests/newcunittest.o build/Debug/Cygwin-Windows/main_nomain.o  `cppunit-config --libs`   
/bin/sh: cppunit-config: command not found
build/Debug/Cygwin-Windows/tests/tests/newcunittest.o: In function `testAdd':
/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments/tests/newcunittest.c:31: undefined reference to `_CU_assertImplementation'
build/Debug/Cygwin-Windows/tests/tests/newcunittest.o: In function `main':
/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments/tests/newcunittest.c:39: undefined reference to `_CU_initialize_registry'
/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments/tests/newcunittest.c:40: undefined reference to `_CU_get_error'
/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments/tests/newcunittest.c:43: undefined reference to `_CU_add_suite'
/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments/tests/newcunittest.c:45: undefined reference to `_CU_cleanup_registry'
/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments/tests/newcunittest.c:46: undefined reference to `_CU_get_error'
/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments/tests/newcunittest.c:50: undefined reference to `_CU_add_test'
/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments/tests/newcunittest.c:51: undefined reference to `_CU_cleanup_registry'
/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments/tests/newcunittest.c:52: undefined reference to `_CU_get_error'
/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments/tests/newcunittest.c:56: undefined reference to `_CU_basic_set_mode'
/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments/tests/newcunittest.c:57: undefined reference to `_CU_basic_run_tests'
/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments/tests/newcunittest.c:58: undefined reference to `_CU_cleanup_registry'
/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments/tests/newcunittest.c:59: undefined reference to `_CU_get_error'
collect2: ld returned 1 exit status
nbproject/Makefile-Debug.mk:82: recipe for target `build/Debug/Cygwin-Windows/tests/TestFiles/f1' failed
make[1]: *** [build/Debug/Cygwin-Windows/tests/TestFiles/f1] Error 1
make[1]: Leaving directory `/cygdrive/d/Users/Wissenstein/projekte/netbeans-testing/cunit-experiments'
nbproject/Makefile-impl.mk:67: recipe for target `.build-tests-impl' failed
make: *** [.build-tests-impl] Error 2


BUILD TESTS FAILED (exit value 2, total time: 2s)

Expected result: Test Results pane appears.