harn-lint 0.8.74

Linter for the Harn programming language
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

//! `naming-convention` plus `unused-type` struct checks.

use super::*;

#[test]
fn test_naming_convention_flags_non_snake_case_function() {
    let diags = lint_source(
        r"
fn BadName() {
  return nil
}
",
    );
    assert!(
        has_rule(&diags, "naming-convention"),
        "expected naming-convention warning, got: {diags:?}"
    );
}

#[test]
fn test_naming_convention_flags_non_pascal_case_type() {
    let diags = lint_source(
        r"
struct bad_name {
  value: int
}
",
    );
    assert!(
        has_rule(&diags, "naming-convention"),
        "expected naming-convention warning, got: {diags:?}"
    );
}

#[test]
fn test_unused_type_warns_for_unreferenced_struct() {
    let diags = lint_source(
        r#"
struct Helper {
  value: int
}

pipeline default(task) {
  log("ready")
}
"#,
    );
    assert!(
        has_rule(&diags, "unused-type"),
        "expected unused-type warning, got: {diags:?}"
    );
}

#[test]
fn test_unused_type_ignores_referenced_struct() {
    let diags = lint_source(
        r"
struct Helper {
  value: int
}

fn build() -> Helper {
  return Helper { value: 1 }
}

pipeline default(task) {
  let item = build()
  log(item.value)
}
",
    );
    assert!(
        !has_rule(&diags, "unused-type"),
        "referenced types should not trigger unused-type: {diags:?}"
    );
}

#[test]
fn test_unused_type_warns_for_unreferenced_alias() {
    let diags = lint_source(
        r#"
type Payload = {value: int}

pipeline default(task) {
  log("ready")
}
"#,
    );
    assert!(
        has_rule(&diags, "unused-type"),
        "expected unused-type warning for alias, got: {diags:?}"
    );
}

#[test]
fn test_unused_type_ignores_referenced_alias() {
    let diags = lint_source(
        r"
type Payload = {value: int}

fn build() -> Payload {
  return {value: 1}
}

pipeline default(task) {
  let item = build()
  log(item.value)
}
",
    );
    assert!(
        !has_rule(&diags, "unused-type"),
        "referenced aliases should not trigger unused-type: {diags:?}"
    );
}