Add failing test that gitconfig insteadOf is honored

See #693

src/features/hyperlinks.rs

@@ -110,3 +110,44 @@ fn format_commit_line_captures_with_osc8_commit_hyperlink(
 fn format_github_commit_url(commit: &str, github_repo: &str) -> String {
     format!("https://github.com/{}/commit/{}", github_repo, commit)
 }
+
+#[cfg(test)]
+mod tests {
+    use std::fs::remove_file;
+
+    use super::format_commit_line_with_osc8_commit_hyperlink;
+    use crate::tests::integration_test_utils;
+
+    #[test]
+    fn test_commit_hyperlink_honors_insteadof() {
+        let git_config_contents = br#"
+[remote "origin"]                                                                                                                                                                                                                          
+    url = github:dandavison/delta                                                                                                                                                                                                      
+    fetch = +refs/heads/*:refs/remotes/origin/*
+[url "https://github.com/"]
+    insteadOf = github:
+[url "ssh://git@github.com/"]
+    pushInsteadOf = github:
+    insteadOf = githubpriv:
+"#;
+        let git_config_path = "delta__test_commit_hyperlink_honors_insteadof";
+        let config = integration_test_utils::make_config_from_args_and_git_config(
+            &[],
+            Some(git_config_contents),
+            Some(git_config_path),
+        );
+        let hash = "342016d0a69d8361dc17396d9a441704416eb7bb";
+        let line = format!("commit {}", hash);
+        // TODO: This doesn't work because a git2::Repository is needed in order
+        // to compute the remote URL but we do not actually have a repositoty
+        // since the utility make_config_from_args_and_git_config creates a
+        // GitConfig struct with a null Repository.
+        let formatted = format_commit_line_with_osc8_commit_hyperlink(&line, &config);
+        assert!(formatted.contains(&format!(
+            "https://github.com/dandavison/delta/commit/{}",
+            hash
+        )));
+
+        remove_file(git_config_path).unwrap();
+    }
+}