src/test/run-make/coverage/no_cov_crate.rs

   1 // Enables `no_coverage` on the entire crate
   2 #![feature(no_coverage)]
   3
   4 #[no_coverage]
   5 fn do_not_add_coverage_1() {
   6     println!("called but not covered");
   7 }
   8
   9 fn do_not_add_coverage_2() {
  10     #![no_coverage]
  11     println!("called but not covered");
  12 }
  13
  14 #[no_coverage]
  15 fn do_not_add_coverage_not_called() {
  16     println!("not called and not covered");
  17 }
  18
  19 fn add_coverage_1() {
  20     println!("called and covered");
  21 }
  22
  23 fn add_coverage_2() {
  24     println!("called and covered");
  25 }
  26
  27 fn add_coverage_not_called() {
  28     println!("not called but covered");
  29 }
  30
  31 // FIXME: These test-cases illustrate confusing results of nested functions.
  32 // See https://github.com/rust-lang/rust/issues/93319
  33 mod nested_fns {
  34     #[no_coverage]
  35     pub fn outer_not_covered(is_true: bool) {
  36         fn inner(is_true: bool) {
  37             if is_true {
  38                 println!("called and covered");
  39             } else {
  40                 println!("absolutely not covered");
  41             }
  42         }
  43         println!("called but not covered");
  44         inner(is_true);
  45     }
  46
  47     pub fn outer(is_true: bool) {
  48         println!("called and covered");
  49         inner_not_covered(is_true);
  50
  51         #[no_coverage]
  52         fn inner_not_covered(is_true: bool) {
  53             if is_true {
  54                 println!("called but not covered");
  55             } else {
  56                 println!("absolutely not covered");
  57             }
  58         }
  59     }
  60
  61     pub fn outer_both_covered(is_true: bool) {
  62         println!("called and covered");
  63         inner(is_true);
  64
  65         fn inner(is_true: bool) {
  66             if is_true {
  67                 println!("called and covered");
  68             } else {
  69                 println!("absolutely not covered");
  70             }
  71         }
  72     }
  73 }
  74
  75 fn main() {
  76     let is_true = std::env::args().len() == 1;
  77
  78     do_not_add_coverage_1();
  79     do_not_add_coverage_2();
  80     add_coverage_1();
  81     add_coverage_2();
  82
  83     nested_fns::outer_not_covered(is_true);
  84     nested_fns::outer(is_true);
  85     nested_fns::outer_both_covered(is_true);
  86 }