//! Integration tests for `::placeholder` contrast detection (#790).
use impeccable_html::{detect_html_source, DetectHtmlOptions};
use std::path::Path;
const ISSUER_REPRO: &str = r#"
"#;
fn scan(html: &str) -> Vec {
detect_html_source(html, Path::new("/tmp/placeholder.html"), &DetectHtmlOptions::default())
}
fn repo_root() -> std::path::PathBuf {
std::env::var("IMPECCABLE_PUBLIC_REPO")
.map(std::path::PathBuf::from)
.unwrap_or_else(|_| Path::new(env!("CARGO_MANIFEST_DIR")).join("../.."))
}
#[test]
fn issuer_repro_flags_pale_placeholder() {
let findings = scan(ISSUER_REPRO);
assert!(
findings.iter().any(|f| f.antipattern == "low-contrast"),
"expected low-contrast finding, got {findings:?}"
);
}
#[test]
fn bare_placeholder_selector_flags() {
let html = r#"
"#;
let findings = scan(html);
assert!(
findings.iter().any(|f| f.antipattern == "low-contrast"),
"expected low-contrast for bare ::placeholder, got {findings:?}"
);
}
#[test]
fn descendant_placeholder_selector_flags() {
let html = r#"
"#;
let findings = scan(html);
assert!(
findings.iter().any(|f| f.antipattern == "low-contrast"),
"expected low-contrast for descendant ::placeholder, got {findings:?}"
);
}
#[test]
fn sibling_placeholder_selector_flags() {
let html = r#"
"#;
let findings = scan(html);
assert!(
findings.iter().any(|f| f.antipattern == "low-contrast"),
"expected low-contrast for sibling ::placeholder, got {findings:?}"
);
}
#[test]
fn fixture_flag_and_pass_cases() {
let fixture = repo_root().join("tests/fixtures/antipatterns/placeholder-contrast.html");
assert!(
fixture.is_file(),
"missing fixture at {}",
fixture.display()
);
let html = std::fs::read_to_string(&fixture).unwrap();
let findings = detect_html_source(&html, &fixture, &DetectHtmlOptions::default());
let ids: Vec<&str> = findings.iter().map(|f| f.antipattern.as_str()).collect();
let snippets: Vec<&str> = findings.iter().map(|f| f.snippet.as_str()).collect();
for needle in [
"Pale Placeholder On White Field",
"Pale Placeholder On White Textarea",
"Translucent Placeholder On Light Field",
"Pale Placeholder On Frosted Panel",
] {
assert!(
snippets.iter().any(|s| s.contains(needle)),
"expected flag for placeholder {needle:?}, findings={findings:?}"
);
}
for needle in [
"Ink Placeholder On White Field",
"Light Placeholder On Dark Field",
"Filled Field Hides Placeholder",
"Unstyled Placeholder Uses UA Color",
] {
assert!(
!snippets.iter().any(|s| s.contains(needle)),
"pass case {needle:?} should not flag, findings={findings:?}"
);
}
assert!(
ids.iter().filter(|id| **id == "low-contrast").count() >= 4,
"expected at least four low-contrast hits, got {findings:?}"
);
}