dendryform_core/
tech.rs

1//! Technology badge type.
2
3use std::fmt;
4
5use serde::{Deserialize, Serialize};
6
7/// A technology badge displayed on a node card.
8///
9/// Wraps a non-empty string. Rendered as a pill/badge in the diagram.
10///
11/// # Examples
12///
13/// ```
14/// use dendryform_core::Tech;
15///
16/// let tech = Tech::new("React");
17/// assert_eq!(tech.as_str(), "React");
18/// ```
19#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]
20#[serde(transparent)]
21pub struct Tech(String);
22
23impl Tech {
24    /// Creates a new technology badge.
25    pub fn new(value: &str) -> Self {
26        Self(value.to_owned())
27    }
28
29    /// Returns the technology name as a string slice.
30    pub fn as_str(&self) -> &str {
31        &self.0
32    }
33}
34
35impl fmt::Display for Tech {
36    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
37        f.write_str(&self.0)
38    }
39}
40
41#[cfg(test)]
42mod tests {
43    use super::*;
44
45    #[test]
46    fn test_display() {
47        let tech = Tech::new("TypeScript");
48        assert_eq!(format!("{tech}"), "TypeScript");
49    }
50
51    #[test]
52    fn test_serde_round_trip() {
53        let tech = Tech::new("axum");
54        let json = serde_json::to_string(&tech).unwrap();
55        assert_eq!(json, "\"axum\"");
56        let deserialized: Tech = serde_json::from_str(&json).unwrap();
57        assert_eq!(tech, deserialized);
58    }
59
60    #[test]
61    fn test_as_str() {
62        let tech = Tech::new("React");
63        assert_eq!(tech.as_str(), "React");
64    }
65
66    #[test]
67    fn test_debug() {
68        let tech = Tech::new("Rust");
69        let debug = format!("{tech:?}");
70        assert!(debug.contains("Rust"));
71    }
72
73    #[test]
74    fn test_clone_eq() {
75        let a = Tech::new("Go");
76        let b = a.clone();
77        assert_eq!(a, b);
78    }
79
80    #[test]
81    fn test_hash() {
82        use std::collections::HashSet;
83        let mut set = HashSet::new();
84        set.insert(Tech::new("Rust"));
85        set.insert(Tech::new("Go"));
86        set.insert(Tech::new("Rust"));
87        assert_eq!(set.len(), 2);
88    }
89}
dendryform_core/tech.rs

dendryform_core/
tech.rs
