class method
Coverage.setup
(?lines: bool, ?branches: bool, ?methods: bool, ?eval: bool) -> nil
(oneshot_lines: bool, ?branches: bool, ?methods: bool, ?eval: bool) -> nil
(:all) -> nil
Coverage.setup => nil
Coverage.setup(:all) => nil
Coverage.setup(lines: bool, branches: bool, methods: bool, eval: bool) => nil
Coverage.setup(oneshot_lines: true) => nil
ext/coverage/coverage.c
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static VALUE
rb_coverage_setup(int argc, VALUE *argv, VALUE klass)
{
VALUE coverages, opt;
int mode;
if (current_state != IDLE) {
rb_raise(rb_eRuntimeError, "coverage measurement is already setup");
}
rb_scan_args(argc, argv, "01", &opt);
if (argc == 0) {
mode = 0; /* compatible mode */
}
else if (opt == ID2SYM(rb_intern("all"))) {
mode = COVERAGE_TARGET_LINES | COVERAGE_TARGET_BRANCHES | COVERAGE_TARGET_METHODS | COVERAGE_TARGET_EVAL;
}
else {
mode = 0;
opt = rb_convert_type(opt, T_HASH, "Hash", "to_hash");
if (RTEST(rb_hash_lookup(opt, ID2SYM(rb_intern("lines")))))
mode |= COVERAGE_TARGET_LINES;
if (RTEST(rb_hash_lookup(opt, ID2SYM(rb_intern("branches")))))
mode |= COVERAGE_TARGET_BRANCHES;
if (RTEST(rb_hash_lookup(opt, ID2SYM(rb_intern("methods")))))
mode |= COVERAGE_TARGET_METHODS;
if (RTEST(rb_hash_lookup(opt, ID2SYM(rb_intern("oneshot_lines"))))) {
if (mode & COVERAGE_TARGET_LINES)
rb_raise(rb_eRuntimeError, "cannot enable lines and oneshot_lines simultaneously");
mode |= COVERAGE_TARGET_LINES;
mode |= COVERAGE_TARGET_ONESHOT_LINES;
}
if (RTEST(rb_hash_lookup(opt, ID2SYM(rb_intern("eval")))))
mode |= COVERAGE_TARGET_EVAL;
}
if (mode & COVERAGE_TARGET_METHODS) {
me2counter = rb_ident_hash_new();
}
else {
me2counter = Qnil;
}
coverages = rb_get_coverages();
if (!RTEST(coverages)) {
coverages = rb_hash_new();
rb_obj_hide(coverages);
current_mode = mode;
if (mode == 0) mode = COVERAGE_TARGET_LINES;
rb_set_coverages(coverages, mode, me2counter);
current_state = SUSPENDED;
}
else if (current_mode != mode) {
rb_raise(rb_eRuntimeError, "cannot change the measuring target during coverage measurement");
}
return Qnil;
}
Set up the coverage measurement.
Note that this method does not start the measurement itself. Use Coverage.resume to start the measurement.
You may want to use Coverage.start to setup and then start the measurement.