From a6a60eef3115b4ce6df432fe2b0a490916e77763 Mon Sep 17 00:00:00 2001
From: Eric Huss <eric@huss.org>
Date: Mon, 11 Aug 2025 19:26:05 -0700
Subject: [PATCH] Add read_to_string to the prelude

This adds the `read_to_string` test helper to the test prelude so that
it is easier to use.
---
 tests/testsuite/main.rs   | 2 +-
 tests/testsuite/search.rs | 2 +-
 tests/testsuite/toc.rs    | 4 +---
 3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/tests/testsuite/main.rs b/tests/testsuite/main.rs
index 6959f6dd..7a8aa7c2 100644
--- a/tests/testsuite/main.rs
+++ b/tests/testsuite/main.rs
@@ -24,6 +24,6 @@ mod theme;
 mod toc;
 
 mod prelude {
-    pub use crate::book_test::BookTest;
+    pub use crate::book_test::{BookTest, read_to_string};
     pub use snapbox::str;
 }
diff --git a/tests/testsuite/search.rs b/tests/testsuite/search.rs
index 0a177276..89978e46 100644
--- a/tests/testsuite/search.rs
+++ b/tests/testsuite/search.rs
@@ -7,7 +7,7 @@ use std::path::Path;
 
 fn read_book_index(root: &Path) -> serde_json::Value {
     let index = root.join("book/searchindex.js");
-    let index = std::fs::read_to_string(index).unwrap();
+    let index = read_to_string(index);
     let index =
         index.trim_start_matches("window.search = Object.assign(window.search, JSON.parse('");
     let index = index.trim_end_matches("'));");
diff --git a/tests/testsuite/toc.rs b/tests/testsuite/toc.rs
index 35b5e5ab..b7e5629b 100644
--- a/tests/testsuite/toc.rs
+++ b/tests/testsuite/toc.rs
@@ -1,11 +1,9 @@
 //! Tests for table of contents (sidebar).
 
 use crate::prelude::*;
-use anyhow::Context;
 use anyhow::Result;
 use select::document::Document;
 use select::predicate::{Attr, Class, Name, Predicate};
-use std::fs;
 
 const TOC_TOP_LEVEL: &[&str] = &[
     "1. With Readme",
@@ -50,7 +48,7 @@ fn toc_fallback_html() -> Result<Document> {
     test.build();
 
     let toc_path = test.dir.join("book").join("toc.html");
-    let html = fs::read_to_string(toc_path).with_context(|| "Unable to read index.html")?;
+    let html = read_to_string(toc_path);
     Ok(Document::from(html.as_str()))
 }