Migrate check_first_toc_level to BookTest

tests/rendered_output.rs

@@ -169,29 +169,6 @@ fn toc_fallback_html() -> Result<Document> {
     Ok(Document::from(html.as_str()))
 }
 
-#[test]
-fn check_first_toc_level() {
-    let doc = toc_js_html().unwrap();
-    let mut should_be = Vec::from(TOC_TOP_LEVEL);
-
-    should_be.extend(TOC_SECOND_LEVEL);
-    should_be.sort_unstable();
-
-    let pred = descendants!(
-        Class("chapter"),
-        Name("li"),
-        Name("a").and(Class("toggle").not())
-    );
-
-    let mut children: Vec<_> = doc
-        .find(pred)
-        .map(|elem| elem.text().trim().to_string())
-        .collect();
-    children.sort();
-
-    assert_eq!(children, should_be);
-}
-
 #[test]
 fn check_spacers() {
     let doc = toc_js_html().unwrap();

tests/testsuite/toc.rs

@@ -4,6 +4,14 @@ use crate::prelude::*;
 use select::document::Document;
 use select::predicate::{Class, Name, Predicate};
 
+const TOC_TOP_LEVEL: &[&str] = &[
+    "1. With Readme",
+    "3. Deep Nest 1",
+    "Prefix 1",
+    "Prefix 2",
+    "Suffix 1",
+    "Suffix 2",
+];
 const TOC_SECOND_LEVEL: &[&str] = &[
     "1.1. Nested Index",
     "1.2. Nested two",
@@ -53,3 +61,26 @@ fn check_second_toc_level() {
 
     assert_eq!(children_of_children, should_be);
 }
+
+#[test]
+fn check_first_toc_level() {
+    let doc = toc_js_html();
+    let mut should_be = Vec::from(TOC_TOP_LEVEL);
+
+    should_be.extend(TOC_SECOND_LEVEL);
+    should_be.sort_unstable();
+
+    let pred = descendants!(
+        Class("chapter"),
+        Name("li"),
+        Name("a").and(Class("toggle").not())
+    );
+
+    let mut children: Vec<_> = doc
+        .find(pred)
+        .map(|elem| elem.text().trim().to_string())
+        .collect();
+    children.sort();
+
+    assert_eq!(children, should_be);
+}