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| 1 | +//! This checks the output of `--print=crate-root-lint-levels` |
| 2 | +
|
| 3 | +extern crate run_make_support; |
| 4 | + |
| 5 | +use std::collections::HashSet; |
| 6 | +use std::iter::FromIterator; |
| 7 | + |
| 8 | +use run_make_support::rustc; |
| 9 | + |
| 10 | +struct CrateRootLintLevels { |
| 11 | + args: &'static [&'static str], |
| 12 | + contains: Contains, |
| 13 | +} |
| 14 | + |
| 15 | +struct Contains { |
| 16 | + contains: &'static [&'static str], |
| 17 | + doesnt_contain: &'static [&'static str], |
| 18 | +} |
| 19 | + |
| 20 | +fn main() { |
| 21 | + check(CrateRootLintLevels { |
| 22 | + args: &[], |
| 23 | + contains: Contains { |
| 24 | + contains: &[ |
| 25 | + "unexpected_cfgs=allow", |
| 26 | + "unused_mut=expect", |
| 27 | + "warnings=warn", |
| 28 | + "stable_features=warn", |
| 29 | + "unknown_lints=warn", |
| 30 | + ], |
| 31 | + doesnt_contain: &["unexpected_cfgs=warn", "unused_mut=warn"], |
| 32 | + }, |
| 33 | + }); |
| 34 | + check(CrateRootLintLevels { |
| 35 | + args: &["-Wunexpected_cfgs"], |
| 36 | + contains: Contains { |
| 37 | + contains: &["unexpected_cfgs=allow", "warnings=warn"], |
| 38 | + doesnt_contain: &["unexpected_cfgs=warn"], |
| 39 | + }, |
| 40 | + }); |
| 41 | + check(CrateRootLintLevels { |
| 42 | + args: &["-Dwarnings"], |
| 43 | + contains: Contains { |
| 44 | + contains: &[ |
| 45 | + "unexpected_cfgs=allow", |
| 46 | + "warnings=deny", |
| 47 | + "stable_features=deny", |
| 48 | + "unknown_lints=deny", |
| 49 | + ], |
| 50 | + doesnt_contain: &["warnings=warn"], |
| 51 | + }, |
| 52 | + }); |
| 53 | + check(CrateRootLintLevels { |
| 54 | + args: &["-Dstable_features"], |
| 55 | + contains: Contains { |
| 56 | + contains: &["warnings=warn", "stable_features=deny", "unexpected_cfgs=allow"], |
| 57 | + doesnt_contain: &["warnings=deny"], |
| 58 | + }, |
| 59 | + }); |
| 60 | +} |
| 61 | + |
| 62 | +fn check(CrateRootLintLevels { args, contains }: CrateRootLintLevels) { |
| 63 | + let output = rustc() |
| 64 | + .input("lib.rs") |
| 65 | + .arg("-Zunstable-options") |
| 66 | + .print("crate-root-lint-levels") |
| 67 | + .args(args) |
| 68 | + .run(); |
| 69 | + |
| 70 | + let stdout = output.stdout_utf8(); |
| 71 | + |
| 72 | + let mut found = HashSet::<String>::new(); |
| 73 | + |
| 74 | + for l in stdout.lines() { |
| 75 | + assert!(l == l.trim()); |
| 76 | + if let Some((left, right)) = l.split_once('=') { |
| 77 | + assert!(!left.contains("\"")); |
| 78 | + assert!(!right.contains("\"")); |
| 79 | + } else { |
| 80 | + assert!(l.contains('=')); |
| 81 | + } |
| 82 | + assert!(found.insert(l.to_string()), "{}", &l); |
| 83 | + } |
| 84 | + |
| 85 | + let Contains { contains, doesnt_contain } = contains; |
| 86 | + |
| 87 | + { |
| 88 | + let should_found = HashSet::<String>::from_iter(contains.iter().map(|s| s.to_string())); |
| 89 | + let diff: Vec<_> = should_found.difference(&found).collect(); |
| 90 | + assert!(diff.is_empty(), "should found: {:?}, didn't found {:?}", &should_found, &diff); |
| 91 | + } |
| 92 | + { |
| 93 | + let should_not_find = |
| 94 | + HashSet::<String>::from_iter(doesnt_contain.iter().map(|s| s.to_string())); |
| 95 | + let diff: Vec<_> = should_not_find.intersection(&found).collect(); |
| 96 | + assert!(diff.is_empty(), "should not find {:?}, did found {:?}", &should_not_find, &diff); |
| 97 | + } |
| 98 | +} |
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