Unit testing helpers

Macros
#define	TEST_METHOD(klass, method)   ::detail::test_method<klass, &klass::method>(#klass, #method)
#define	testEqual(LHS, RHS)   ::detail::testEqualx(#LHS, #RHS, LHS, RHS)
#define	testNotEqual(LHS, RHS)   ::detail::testNotEqualx(#LHS, #RHS, LHS, RHS)
#define	testTrue(B)   ::detail::testPassx(!!(B))<<#B
#define	testThrows(EXC, CODE)   try{ CODE; testFail("unexpected success of " #CODE); }catch(EXC& e){testPass("catch expected exception: %s", e.what());}
#define	testShow()   ::detail::testPassx()

Functions
template<typename PVD >
::detail::testPassx	testFieldEqual (const std::tr1::shared_ptr< const epics::pvData::PVStructure > &val, const char *name, typename PVD::value_type expect)
template<typename PVD >
::detail::testPassx	testFieldEqual (const std::tr1::shared_ptr< const epics::pvData::PVStructure > &val, const char *name, typename PVD::const_svector expect)

Detailed Description

Helper functions for writing unit tests.

/*
 * Copyright information and license terms for this software can be
 * found in the file LICENSE that is included with the distribution
 */
/* c++ unittest skeleton */

#include <stdexcept>

#include <testMain.h>

#include <pv/pvUnitTest.h>
#include <pv/epicsException.h>

namespace {
void testCase1() {
    testEqual(1+1, 2);
}
} // namespace

MAIN(testUnitTest)
{
    testPlan(1);
    try {
        testCase1();
    }catch(std::exception& e){
        PRINT_EXCEPTION(e); // print stack trace if thrown with THROW_EXCEPTION()
        testAbort("Unhandled exception: %s", e.what());
    }
    return testDone();
}

Macro Definition Documentation

#define TEST_METHOD	(		klass,
			method
	)		::detail::test_method<klass, &klass::method>(#klass, #method)

Run a class method as a test.

Each invocation of TEST_METHOD() constructs a new instance of 'klass' on the stack. Thus constructor and destructor can be used for common test setup and tear down.

namespace { // anon
    struct MyTest {
          MyTest() { } // setup
          ~MyTest() { } // tear down
          void test1() {}
          void test2() {}
    };
} // namespace anon
MAIN(somename) {
      testPlan(0);
      TEST_METHOD(MyTest, test1)
      TEST_METHOD(MyTest, test2)
      return testDone();
}

Definition at line 98 of file pvUnitTest.h.

#define testEqual	(		LHS,
			RHS
	)		::detail::testEqualx(#LHS, #RHS, LHS, RHS)

Compare equality. print left and right hand values and expression strings

int x=5;
testEqual(x, 5);
// prints "ok 1 - x (5) == 5 (5)\n"
testEqual(x, 6)<<" oops";
// prints "not ok 1 - x (5) == 6 (6) oops\n"

Definition at line 110 of file pvUnitTest.h.

#define testShow

(

)

::detail::testPassx()

Print test output w/o testing

testShow()<<"Foo";

Definition at line 140 of file pvUnitTest.h.

#define testThrows	(		EXC,
			CODE
	)		try{ CODE; testFail("unexpected success of " #CODE); }catch(EXC& e){testPass("catch expected exception: %s", e.what());}

Test that a given block throws an exception

testThrows(std::runtime_error, somefunc(5))

Definition at line 132 of file pvUnitTest.h.

#define testTrue

(

B

)

::detail::testPassx(!!(B))<<#B

Pass/fail from boolean

bool y=true;
testTrue(y);
// prints "ok 1 - y\n"
testTrue(!y)<<" oops";
// prints "not ok 1 - !y oops\n"

Definition at line 124 of file pvUnitTest.h.

Function Documentation

template<typename PVD >

::detail::testPassx testFieldEqual	(	const std::tr1::shared_ptr< const epics::pvData::PVStructure > &	val,
		const char *	name,
		typename PVD::value_type	expect
	)

Compare value of PVStructure field

PVStructurePtr x(.....);
testFieldEqual<epics::pvData::PVInt>(x, "alarm.severity", 1);

Definition at line 151 of file pvUnitTest.h.