rustyle_css/testing/
mod.rs

1//! Testing utilities for Rustyle
2//!
3//! Provides testing helpers for CSS validation and style testing.
4
5use crate::css::Color;
6
7/// CSS assertion utilities
8pub struct CssAssertions;
9
10impl CssAssertions {
11    /// Assert that CSS contains a property
12    pub fn assert_contains_property(css: &str, property: &str) -> bool {
13        css.contains(property)
14    }
15
16    /// Assert that CSS contains a value
17    pub fn assert_contains_value(css: &str, value: &str) -> bool {
18        css.contains(value)
19    }
20
21    /// Assert that CSS contains a selector
22    pub fn assert_contains_selector(css: &str, selector: &str) -> bool {
23        css.contains(selector)
24    }
25
26    /// Validate CSS syntax (basic check)
27    pub fn validate_syntax(css: &str) -> bool {
28        // Basic validation: check for balanced braces
29        let mut brace_count = 0;
30        for ch in css.chars() {
31            match ch {
32                '{' => brace_count += 1,
33                '}' => {
34                    brace_count -= 1;
35                    if brace_count < 0 {
36                        return false;
37                    }
38                }
39                _ => {}
40            }
41        }
42        brace_count == 0
43    }
44}
45
46/// Style validation tests
47pub struct StyleValidator;
48
49impl StyleValidator {
50    /// Validate color contrast
51    pub fn validate_contrast(foreground: &Color, background: &Color) -> bool {
52        use crate::a11y::contrast::meets_wcag_aa;
53        meets_wcag_aa(foreground, background, false)
54    }
55
56    /// Validate that required properties are present
57    pub fn validate_required_properties(css: &str, required: &[&str]) -> Vec<String> {
58        let mut missing = Vec::new();
59        for prop in required {
60            if !css.contains(prop) {
61                missing.push(prop.to_string());
62            }
63        }
64        missing
65    }
66}
67
68#[cfg(test)]
69mod tests {
70    use super::*;
71
72    #[test]
73    fn test_css_assertions() {
74        let css = "color: red; background-color: blue;";
75        assert!(CssAssertions::assert_contains_property(css, "color"));
76        assert!(CssAssertions::assert_contains_value(css, "red"));
77    }
78
79    #[test]
80    fn test_validate_syntax() {
81        assert!(CssAssertions::validate_syntax(".test { color: red; }"));
82        assert!(!CssAssertions::validate_syntax(".test { color: red; "));
83    }
84}
rustyle_css/testing/mod.rs

rustyle_css/testing/
mod.rs
