c++ - Generate Unit Tests from a scenario table where inputs and expected results are specified -

-

i'm trying generate post coding ut module. module classifies input data db, if match found, proper value returned.

after building table possible input scenarios , expected results, discovered got on 50 tests create. tests same, except test name , inputs, kind of template seemed fit here, reducing code mess.

what imagined, either macro creates such template , expands tests input data , expected result or using structure representing scenario table macro wrap up. (i guess c++ template adequate here).

however, i'm not sure correct path take , know if can give recommendations of how tackle it. there question of how fits tdd approach..

here idea using cpputest:

#define gen_test_mod_classifier(group_name, test_name, priority, iscompress, isx, expecting) \ test(group_name, test_name) \ { \    int hit; \    setupdb(priority, iscompress, isx); \    hit = func(priority, iscompress, isx); \    check_equal(expecting, hit); \ }

usage example:

gen_test_mod_classifier(classifier_tests, lowpriority_nocompress_nox__hit, prio_low, not_compress, no_x, hit_db)

thanks, edy.

well, w/o external tools best can using macros. that's because need have test(group_name, test_name) each test case.

it may not case. may fine not having separate test case each scenario or cpputest may have support programmatic way of adding test cases. in case, can create method takes vector of input-output-testcasename tuples. , add testcases / run tests on each tuple. no macros needed.

something (pseudocode):

typedef std::tuple<std::string, std::string, prioritytype, compresstype, expectedvaluetype> testinfo;  void runtest(const testinfo& testinfo) { // assuming here you're ok kind of test cases separation     std::cout << "running test" << std::get<0>(testinfo) << ", " << std::get<1>(testinfo) << std::endl;     int hit;    setupdb(std::get<2>(testinfo), std::get<3>(testinfo), isx);    hit = func(std::get<2>(testinfo), std::get<3>(testinfo), isx);    check_equal(std::get<4>, hit); }  void runtests(const testinfo& testinfo) {     std::for_each(testinfo.begin(), testinfo.end(), runtest); }  std::vector<testinfo> tests = { test1, test2 }; runtests(tests);

if doesn't work, macros fine, , go table based approach there well. take @ boost preprocessor (http://www.boost.org/doc/libs/1_54_0/libs/preprocessor/doc/index.html)

pseudocode again:

#include <boost\preprocessor\seq.hpp>  #define generate_test_case(_ignore1_, _ignore2_, _testcaseinfosequence_) \     test(boost_pp_seq_elem(0, testcaseinfosequence), boost_pp_seq_elem(1, testcaseinfosequence)) \     { \         int hit; \         setupdb(boost_pp_seq_elem(2, testcaseinfosequence), boost_pp_seq_elem(3, testcaseinfosequence), boost_pp_seq_elem(4, testcaseinfosequence)); \         hit = func(boost_pp_seq_elem(2, testcaseinfosequence), boost_pp_seq_elem(3, testcaseinfosequence), boost_pp_seq_elem(4, testcaseinfosequence)); \         check_equal(boost_pp_seq_elem(5, testcaseinfosequence), hit); \     }  #define testcases \     ( \         (group1)(test1)(prio1)(iscompress1)(isx1)(expectedval1) \         (group1)(test2)(prio2)(iscompress2)(isx2)(expectedval2) \     )   // statement generate tests cases in defined in testcases sequnce. boost_pp_seq_foreach(generate_test_case, _ignore_, testcases);

Comments

Post a Comment

Popular posts from this blog

java - activate/deactivate sonar maven plugin by profile? -

-
i use sonar plugin executes if activated in maven profile. sonar runs on every compile. the problem build fail other team members not have sonar application installed locally. pom.xml checked in team members same copy including sonar configuration, don't want them modify purpose of disabling sonar (they might inadvertently check modified copy in). please advise how configure maven (.m2/settings.xml) and/or pom.xml sonar feature can enabled/disabled local profile. here sonar configuration in each project's pom.xml: <plugin> <groupid>org.codehaus.mojo</groupid> <artifactid>sonar-maven-plugin</artifactid> <version>1.0</version> <executions> <execution> <id>make-sonar</id> <phase>compile</phase> <goals> <goal>sonar</goal> </goals> </execution> </executions> ...
Read more

python - TypeError: can only concatenate tuple (not "float") to tuple -

-
i'm new python, question might easy, anyway, patience: as trying call newton-raphson method calculate implied volatility in black-scholes formula call/put option pricing, first thing is, newton method in scipy.optimize seems calculate function's zeros, in black-scholes formula, want function's value option price, not zero. (i'm new here programming, i'm not sure techniques.) should write function things like: def f(sigma, price): return bsformula(s0,k,r,t,q,sigma) - price then, while calling newton method, takes args=() 1 parameter in function, write this: value = newton(bsprice2, 0.5, args=price) but error message: file "bs.py", line 36, in bsimpvol value = newton(bsprice2, 0.5, args=float(price)) file "/usr/lib/python2.7/dist-packages/scipy/optimize/zeros.py", line 143, in newton q0 = func(*((p0,) + args)) typeerror: can concatenate tuple (not "float") tuple could tell me why that? how fix it? apprecia...
Read more

java - What is the difference between String. and String.this. ? -

-
this question has answer here: meaning of .this , .class in java 2 answers i'll straight point. im still learning bit of syntax , want know difference between code is code a: public class buttonz extends jbutton{ public buttonz(){ settext(new string(string.valueof(i))); } } please ignore fact i undeclared, not lost. code b: public class buttonz extends jbutton{ public buttonz(){ settext(new string(string.this.charat(i))); } } what don't yet understand difference in typing string.this , string. i under assumption when use dot operator on class accessing it's static methods(and/or variables if they're not hidden). i have studied little bit , have concluded when using string. accessing string static methods.. when using string.this. i'm accessing methods class buttonz extendi...
Read more