testing-conventions 0.0.105

Enforce testing conventions in libraries (Python, TypeScript, and Rust).
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131

mod common;

use common::{expect_tested, ts_adapter, Staged};
use testing_conventions::mutation::measure_typescript;

#[test]
fn killed_reports_no_survivors() {
    let package = Staged::new("killed");
    let (_, survivors) = expect_tested(
        measure_typescript(
            &package.path().join("src"),
            &[],
            &std::collections::BTreeMap::new(),
            None,
            &ts_adapter(),
        )
        .expect("stryker runs"),
    );
    assert!(
        survivors.is_empty(),
        "every mutant should be caught; got {survivors:?}"
    );
}

#[test]
fn survivors_are_reported() {
    let package = Staged::new("survivors");
    let (_, survivors) = expect_tested(
        measure_typescript(
            &package.path().join("src"),
            &[],
            &std::collections::BTreeMap::new(),
            None,
            &ts_adapter(),
        )
        .expect("stryker runs"),
    );
    assert!(
        !survivors.is_empty(),
        "the assertion-light suite should leave survivors under the scan path"
    );
    assert!(
        survivors.iter().all(|m| m.file == "index.ts"),
        "survivors are reported relative to the scan path; got {survivors:?}"
    );
}

#[test]
fn a_package_root_relative_vitest_include_still_reaches_the_colocated_suite() {
    let package = Staged::configured("config_include");
    let (count, survivors) = expect_tested(
        measure_typescript(
            &package.path().join("src"),
            &[],
            &std::collections::BTreeMap::new(),
            None,
            &ts_adapter(),
        )
        .expect("the colocated suite judges the mutants"),
    );
    assert!(
        count > 0,
        "the config's `include` resolves against the package root, so the suite runs"
    );
    assert!(
        survivors.is_empty(),
        "every mutant should be caught; got {survivors:?}"
    );
}

#[test]
fn a_loose_tree_with_no_manifest_reports_root_relative_survivors() {
    let project = Staged::loose("loose_survivors");
    let (_, survivors) = expect_tested(
        measure_typescript(
            project.path(),
            &[],
            &std::collections::BTreeMap::new(),
            None,
            &ts_adapter(),
        )
        .expect("stryker runs"),
    );
    assert!(
        !survivors.is_empty(),
        "the assertion-light suite should leave survivors"
    );
    assert!(
        survivors.iter().all(|m| m.file == "index.ts"),
        "every survivor is in index.ts; got {survivors:?}"
    );
}

#[test]
fn a_loose_tree_with_no_manifest_passes_when_all_mutants_are_killed() {
    let project = Staged::loose("loose_killed");
    let (_, survivors) = expect_tested(
        measure_typescript(
            project.path(),
            &[],
            &std::collections::BTreeMap::new(),
            None,
            &ts_adapter(),
        )
        .expect("stryker runs"),
    );
    assert!(
        survivors.is_empty(),
        "every mutant should be caught; got {survivors:?}"
    );
}

#[test]
fn a_mutation_exemption_drops_the_survivors() {
    let package = Staged::new("survivors");
    let exempt = vec!["index.ts".to_string()];
    let (_, survivors) = expect_tested(
        measure_typescript(
            &package.path().join("src"),
            &exempt,
            &std::collections::BTreeMap::new(),
            None,
            &ts_adapter(),
        )
        .expect("stryker runs"),
    );
    assert!(
        survivors.is_empty(),
        "the exemption should drop every survivor; got {survivors:?}"
    );
}