Add test info mod rs

Cargo.toml

@@ -24,6 +24,7 @@ section = "utility"
 
 [dev-dependencies]
 git-testtools = "0.9.0"
+strip-ansi-escapes = "0.1.1"
 
 [dependencies]
 anyhow = "1.0.65"

src/info/mod.rs

@@ -148,12 +148,16 @@ impl std::fmt::Display for Info {
 }
 
 impl Info {
-    pub fn new(config: &Config) -> Result<Self> {
-        let git_repo = git_repository::discover(&config.input)?;
-        let repo_path = git_repo
+    pub fn init_repo_path(repo: &git_repository::Repository) -> Result<std::path::PathBuf> {
+        Ok(repo
             .work_dir()
             .context("please run onefetch inside of a non-bare git repository")?
-            .to_owned();
+            .to_owned())
+    }
+
+    pub fn new(config: &Config) -> Result<Self> {
+        let git_repo = git_repository::discover(&config.input)?;
+        let repo_path = Info::init_repo_path(&git_repo)?;
 
         let languages_handle = std::thread::spawn({
             let ignored_directories = config.exclude.clone();
@@ -323,7 +327,10 @@ mod tests {
     use super::*;
     use crate::ui::num_to_color;
     use clap::Parser;
+    use git_repository::{open, Repository, ThreadSafeRepository};
+    use git_testtools;
     use owo_colors::AnsiColors;
+    use regex::Regex;
 
     #[test]
     fn test_get_style() -> Result<()> {
@@ -364,4 +371,67 @@ mod tests {
         );
         Ok(())
     }
+
+    type Result<T = ()> = std::result::Result<T, Box<dyn std::error::Error>>;
+
+    fn test_repo(name: &str) -> Result<Repository> {
+        let repo_path = git_testtools::scripted_fixture_repo_read_only(name)?;
+        let safe_repo = ThreadSafeRepository::open_opts(repo_path, open::Options::isolated())?;
+        Ok(safe_repo.to_thread_local())
+    }
+
+    #[test]
+    fn test_bare_repo() -> Result {
+        let repo = test_repo(&"bare_repo.sh")?;
+        match Info::init_repo_path(&repo) {
+            Ok(_info) => assert!(false, "oops, info was returned on a bare git repo"),
+            Err(error) => assert_eq!(
+                "please run onefetch inside of a non-bare git repository",
+                error.to_string()
+            ),
+        };
+        Ok(())
+    }
+
+    #[test]
+    fn test_language_repo() -> Result {
+        let repo_path = git_testtools::scripted_fixture_repo_read_only_with_args(
+            "language_repo.sh",
+            ["verilog"],
+        )?;
+        let safe_repo =
+            ThreadSafeRepository::open_opts(repo_path.join("verilog"), open::Options::isolated())?;
+        let repo = safe_repo.to_thread_local();
+        let mut config = Config::parse_from(&["."]);
+        config.input = repo.path().to_path_buf();
+        let info = Info::new(&config)?;
+        let info_str = format!("{}", info);
+        let info_u8 = strip_ansi_escapes::strip(&info_str)?;
+        let simple_info_str = std::str::from_utf8(&info_u8)?;
+        let expected_info = [
+            r"(?s)onefetch-committer-name ~ git version .+",
+            r"-{37,}",
+            r"Project: repo",
+            r"HEAD: .+ \(main\)",
+            r"Created: 22 years ago",
+            r"Language:",
+            r".+Verilog \(100.0 %\).+",
+            r"Author: 100% author 2",
+            r"Last change: 22 years ago",
+            r"Repo: https://github.com/user/repo.git",
+            r"Commits: 2",
+            r"Lines of code: 1",
+            r"Size: 6 B \(1 file\)",
+        ]
+        .join(".");
+        let re = Regex::new(&expected_info)?;
+        if !re.is_match(&simple_info_str) {
+            assert!(
+                false,
+                "OOPS, REGEX\n{}\nDOESNT MATCH\n{}",
+                expected_info, simple_info_str
+            );
+        }
+        Ok(())
+    }
 }

tests/fixtures/bare_repo.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+set -eu -o pipefail
+
+git init -q --bare

tests/fixtures/language_repo.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+set -eu -o pipefail
+
+case "${1}" in
+  verilog)
+      LANG_DIR="verilog"
+      LANG_EXT="vg"
+      ;;
+  *)
+      echo "OOPS, ARGUMENT EXPECTED TO BE ONE OF THESE VALUES:"
+      echo "  verilog  for language type verilog"
+      exit
+      ;;
+esac
+
+mkdir ${LANG_DIR}
+cd ${LANG_DIR}
+
+git init -q
+
+# BOTH NAME AND EMAIL ARE NEEDED FOR RECOGNITION
+git config --local --add "committer.name" "onefetch-committer-name"
+git config --local --add "committer.email" "[email protected]"
+
+git config --local --add "user.name" "onefetch-user-name"
+git config --local --add "user.email" "[email protected]"
+
+git config --local --add "author.name" "onefetch-author-name"
+git config --local --add "author.email" "[email protected]"
+
+git remote add origin https://github.com/user/repo.git
+
+git checkout -b main
+touch code.${LANG_EXT}
+git add code.${LANG_EXT}
+git commit -q -m c1
+echo hello >> code.${LANG_EXT}
+git commit -q -am c2
+