Fix tests

src/dev/check.rs

@@ -25,10 +25,13 @@ fn forbidden_char(input: &str) -> Option<char> {
 // Check that the Cargo.toml file is up-to-date.
 fn check_cargo_toml(
     exercise_infos: &[ExerciseInfo],
-    current_cargo_toml: &str,
+    cargo_toml_path: &str,
     exercise_path_prefix: &[u8],
 ) -> Result<()> {
-    let (bins_start_ind, bins_end_ind) = bins_start_end_ind(current_cargo_toml)?;
+    let current_cargo_toml = fs::read_to_string(cargo_toml_path)
+        .with_context(|| format!("Failed to read the file `{cargo_toml_path}`"))?;
+
+    let (bins_start_ind, bins_end_ind) = bins_start_end_ind(&current_cargo_toml)?;
 
     let old_bins = &current_cargo_toml.as_bytes()[bins_start_ind..bins_end_ind];
     let mut new_bins = Vec::with_capacity(BINS_BUFFER_CAPACITY);
@@ -305,15 +308,9 @@ pub fn check(require_solutions: bool) -> Result<()> {
 
     if cfg!(debug_assertions) {
         // A hack to make `cargo run -- dev check` work when developing Rustlings.
-        check_cargo_toml(
-            &info_file.exercises,
-            include_str!("../../dev-Cargo.toml"),
-            b"../",
-        )?;
+        check_cargo_toml(&info_file.exercises, "dev/Cargo.toml", b"../")?;
     } else {
-        let current_cargo_toml =
-            fs::read_to_string("Cargo.toml").context("Failed to read the file `Cargo.toml`")?;
-        check_cargo_toml(&info_file.exercises, &current_cargo_toml, b"")?;
+        check_cargo_toml(&info_file.exercises, "Cargo.toml", b"")?;
     }
 
     let cmd_runner = CmdRunner::build()?;

src/dev/update.rs

@@ -9,12 +9,14 @@ use crate::{
 // Update the `Cargo.toml` file.
 fn update_cargo_toml(
     exercise_infos: &[ExerciseInfo],
-    current_cargo_toml: &str,
-    exercise_path_prefix: &[u8],
     cargo_toml_path: &str,
+    exercise_path_prefix: &[u8],
 ) -> Result<()> {
+    let current_cargo_toml = fs::read_to_string(cargo_toml_path)
+        .with_context(|| format!("Failed to read the file `{cargo_toml_path}`"))?;
+
     let updated_cargo_toml =
-        updated_cargo_toml(exercise_infos, current_cargo_toml, exercise_path_prefix)?;
+        updated_cargo_toml(exercise_infos, &current_cargo_toml, exercise_path_prefix)?;
 
     fs::write(cargo_toml_path, updated_cargo_toml)
         .context("Failed to write the `Cargo.toml` file")?;
@@ -25,21 +27,14 @@ fn update_cargo_toml(
 pub fn update() -> Result<()> {
     let info_file = InfoFile::parse()?;
 
-    // A hack to make `cargo run -- dev update` work when developing Rustlings.
     if cfg!(debug_assertions) {
-        update_cargo_toml(
-            &info_file.exercises,
-            include_str!("../../dev-Cargo.toml"),
-            b"../",
-            "dev/Cargo.toml",
-        )
-        .context("Failed to update the file `dev/Cargo.toml`")?;
+        // A hack to make `cargo run -- dev update` work when developing Rustlings.
+        update_cargo_toml(&info_file.exercises, "dev/Cargo.toml", b"../")
+            .context("Failed to update the file `dev/Cargo.toml`")?;
 
         println!("Updated `dev/Cargo.toml`");
     } else {
-        let current_cargo_toml =
-            fs::read_to_string("Cargo.toml").context("Failed to read the file `Cargo.toml`")?;
-        update_cargo_toml(&info_file.exercises, &current_cargo_toml, b"", "Cargo.toml")
+        update_cargo_toml(&info_file.exercises, "Cargo.toml", &[])
             .context("Failed to update the file `Cargo.toml`")?;
 
         println!("Updated `Cargo.toml`");

tests/test_exercises/dev/Cargo.toml

@@ -0,0 +1,11 @@
+bin = [
+  { name = "compilation_success", path = "../exercises/compilation_success.rs" },
+  { name = "compilation_failure", path = "../exercises/compilation_failure.rs" },
+  { name = "test_success", path = "../exercises/test_success.rs" },
+  { name = "test_failure", path = "../exercises/test_failure.rs" },
+]
+
+[package]
+name = "test_exercises"
+edition = "2021"
+publish = false