Mu - 002test.cc

//: A simple test harness. To create new tests define functions starting with
//: 'test_'. To run all tests so defined, run:
//:   $ mu test
//:
//: So far it seems tasteful for layers to never ever reach back to modify
//: previously-defined tests. Every test is a contract once written, and should
//: pass as-is if it is included, regardless of how much later layers change
//: the program. Avoid writing 'temporary' tests that only work with some
//: subsets of the program.

:(before "End Types")
typedef void (*test_fn)(void);

:(before "End Globals")
const test_fn Tests[] = {
  #include "test_list"  // auto-generated; see makefile
};

bool Run_tests = false;
bool Passed = true;  // set this to false inside any test to indicate failure
long Num_failures = 0;

#define CHECK(X) \
  if (!(X)) { \
    ++Num_failures; \
    cerr << "\nthreads:on -d:threadsafe

s="Constant">" failure" << (Num_failures > 1 ? "s" : "") << '\n'; return 1; } return 0; } :(code) void run_test(size_t i) { if (i >= sizeof(Tests)/sizeof(Tests[0])) { cerr << "no test " << i << '\n'; return; } setup(); // End Test Setup (*Tests[i])(); // End Test Teardown teardown(); if (Passed) cerr << '.'; } bool is_integer(const string& s) { return s.find_first_not_of("0123456789-") == string::npos // no other characters && s.find_first_of("0123456789") != string::npos // at least one digit && s.find('-', 1) == string::npos; // '-' only at first position } int to_integer(string n) { char* end = NULL; // safe because string.c_str() is guaranteed to be null-terminated int result = strtoll(n.c_str(), &end, /*any base*/0); if (*end != '\0') cerr << "tried to convert " << n << " to number\n"; assert(*end == '\0'); return result; } void test_is_integer() { CHECK(is_integer("1234")); CHECK(is_integer("-1")); CHECK(!is_integer("234.0")); CHECK(is_integer("-567")); CHECK(!is_integer("89-0")); CHECK(!is_integer("-")); CHECK(!is_integer("1e3")); // not supported } :(before "End Includes") #include <cstdlib>