Add submodule to _corrupted_checkout tests

tests/testsuite/git.rs

@@ -9,7 +9,7 @@ use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::Arc;
 use std::thread;
 
-use cargo_test_support::git::cargo_uses_gitoxide;
+use cargo_test_support::git::{add_submodule, cargo_uses_gitoxide};
 use cargo_test_support::paths;
 use cargo_test_support::prelude::IntoData;
 use cargo_test_support::prelude::*;
@@ -3847,11 +3847,20 @@ fn corrupted_checkout_with_cli() {
 }
 
 fn _corrupted_checkout(with_cli: bool) {
-    let git_project = git::new("dep1", |project| {
+    let (git_project, repository) = git::new_repo("dep1", |project| {
         project
             .file("Cargo.toml", &basic_manifest("dep1", "0.5.0"))
             .file("src/lib.rs", "")
     });
+
+    let project2 = git::new("dep2", |project| {
+        project.no_manifest().file("README.md", "")
+    });
+    let url = project2.root().to_url().to_string();
+    add_submodule(&repository, &url, Path::new("bar"));
+    git::commit(&repository);
+    drop(repository);
+
     let p = project()
         .file(
             "Cargo.toml",
@@ -3962,7 +3971,7 @@ fn different_user_relative_submodules() {
             &format!(
                 r#"
                     [package]
-                    name = "foo" 
+                    name = "foo"
                     version = "0.5.0"
                     edition = "2015"