summaryrefslogtreecommitdiff
path: root/support/texlab/src/features/completion/theorem.rs
blob: 25eea87ab785f438671abcce89ad4e34f5d20d7e (plain)
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
132
133
134
135
136
137
138
139
use cancellation::CancellationToken;
use lsp_types::CompletionParams;

use crate::features::cursor::CursorContext;

use super::types::{InternalCompletionItem, InternalCompletionItemData};

pub fn complete_theorem_environments<'a>(
    context: &'a CursorContext<CompletionParams>,
    items: &mut Vec<InternalCompletionItem<'a>>,
    token: &CancellationToken,
) -> Option<()> {
    if token.is_canceled() {
        return None;
    }

    let (_, range) = context.find_environment_name()?;

    for document in &context.request.subset.documents {
        if let Some(data) = document.data.as_latex() {
            for environment in &data.extras.theorem_environments {
                items.push(InternalCompletionItem::new(
                    range,
                    InternalCompletionItemData::UserEnvironment {
                        name: &environment.name,
                    },
                ));
            }
        }
    }

    Some(())
}

#[cfg(test)]
mod tests {
    use cstree::TextRange;

    use crate::features::testing::FeatureTester;

    use super::*;

    #[test]
    fn test_empty_latex_document() {
        let request = FeatureTester::builder()
            .files(vec![("main.tex", "")])
            .main("main.tex")
            .line(0)
            .character(0)
            .build()
            .completion();

        let context = CursorContext::new(request);
        let mut actual_items = Vec::new();
        complete_theorem_environments(&context, &mut actual_items, CancellationToken::none());

        assert!(actual_items.is_empty());
    }

    #[test]
    fn test_empty_bibtex_document() {
        let request = FeatureTester::builder()
            .files(vec![("main.bib", "")])
            .main("main.bib")
            .line(0)
            .character(0)
            .build()
            .completion();

        let context = CursorContext::new(request);
        let mut actual_items = Vec::new();
        complete_theorem_environments(&context, &mut actual_items, CancellationToken::none());

        assert!(actual_items.is_empty());
    }

    #[test]
    fn test_simple() {
        let request = FeatureTester::builder()
            .files(vec![("main.tex", "\\begin{ \\newtheorem{lemma}{Lemma}")])
            .main("main.tex")
            .line(0)
            .character(7)
            .build()
            .completion();

        let context = CursorContext::new(request);
        let mut actual_items = Vec::new();
        complete_theorem_environments(&context, &mut actual_items, CancellationToken::none());

        assert!(!actual_items.is_empty());
        for item in actual_items {
            assert_eq!(item.range, TextRange::new(7.into(), 7.into()));
        }
    }

    #[test]
    fn test_simple_end() {
        let request = FeatureTester::builder()
            .files(vec![(
                "main.tex",
                "\\newtheorem{lemma}{Lemma}\\begin{a}\n\\end{",
            )])
            .main("main.tex")
            .line(1)
            .character(5)
            .build()
            .completion();

        let context = CursorContext::new(request);
        let mut actual_items = Vec::new();
        complete_theorem_environments(&context, &mut actual_items, CancellationToken::none());

        assert!(!actual_items.is_empty());
        for item in actual_items {
            assert_eq!(item.range, TextRange::new(40.into(), 40.into()));
        }
    }

    #[test]
    fn test_simple_existing() {
        let request = FeatureTester::builder()
            .files(vec![("main.tex", "\\begin{d}\\newtheorem{lemma}{Lemma}")])
            .main("main.tex")
            .line(0)
            .character(7)
            .build()
            .completion();

        let context = CursorContext::new(request);
        let mut actual_items = Vec::new();
        complete_theorem_environments(&context, &mut actual_items, CancellationToken::none());

        assert!(!actual_items.is_empty());
        for item in actual_items {
            assert_eq!(item.range, TextRange::new(7.into(), 8.into()));
        }
    }
}