Add tuono cli integration test (#177)

Co-authored-by: KingTheSim <KingTheSim@abv.bg>
Co-authored-by: KingTheSim <122887037+KingTheSim@users.noreply.github.com>
Co-authored-by: Valerio Ageno <valerio.ageno@qonto.com>

crates/tuono/Cargo.toml

@@ -33,3 +33,8 @@ reqwest = {version = "0.12.4", features =["blocking", "json"]}
 serde_json = "1.0"
 fs_extra = "1.3.0"
 http = "1.1.0"
+
+[dev-dependencies]
+tempfile = "3.14.0"
+assert_cmd = "2.0.16"
+serial_test = "0.4.0"

crates/tuono/tests/cli_tests.rs

@@ -0,0 +1,32 @@
+mod utils;
+use assert_cmd::Command;
+use serial_test::serial;
+use std::fs;
+use utils::TempTuonoProject;
+
+#[test]
+#[serial]
+fn it_successfully_create_the_index_route() {
+    let temp_tuono_project = TempTuonoProject::new();
+
+    temp_tuono_project.add_route("./src/routes/index.rs");
+
+    let mut test_tuono_build = Command::cargo_bin("tuono").unwrap();
+    test_tuono_build
+        .arg("build")
+        .arg("--no-js-emit")
+        .assert()
+        .success();
+
+    let temp_main_rs_path = temp_tuono_project.path().join(".tuono/main.rs");
+
+    let temp_main_rs_content =
+        fs::read_to_string(&temp_main_rs_path).expect("Failed to read '.tuono/main.rs' content.");
+
+    assert!(temp_main_rs_content.contains(r#"#[path="../src/routes/index.rs"]"#));
+    assert!(temp_main_rs_content.contains("mod index;"));
+
+    assert!(temp_main_rs_content.contains(
+        r#".route("/", get(index::route)).route("/__tuono/data/data.json", get(index::api))"#
+    ));
+}

crates/tuono/tests/utils.rs

@@ -0,0 +1,47 @@
+use fs_extra::dir::create_all;
+use std::env;
+use std::fs::File;
+use std::path::{Path, PathBuf};
+use tempfile::{tempdir, TempDir};
+
+#[derive(Debug)]
+pub struct TempTuonoProject {
+    original_dir: PathBuf,
+    temp_dir: TempDir,
+}
+
+impl TempTuonoProject {
+    pub fn new() -> Self {
+        let original_dir = env::current_dir().expect("Failed to read current_dir");
+        let temp_dir = tempdir().expect("Failed to create temp_dir");
+
+        env::set_current_dir(temp_dir.path()).expect("Failed to change current dir into temp_dir");
+
+        TempTuonoProject {
+            original_dir,
+            temp_dir,
+        }
+    }
+
+    pub fn path(&self) -> &Path {
+        self.temp_dir.path()
+    }
+
+    pub fn add_route<'a>(&self, path: &'a str) {
+        let path = PathBuf::from(path);
+        create_all(
+            path.parent().expect("Route path does not have any parent"),
+            false,
+        )
+        .expect("Failed to create parent route directory");
+        File::create(path).expect("Failed to create the route file");
+    }
+}
+
+impl Drop for TempTuonoProject {
+    fn drop(&mut self) {
+        // Set back the current dir in the previous state
+        env::set_current_dir(self.original_dir.to_owned())
+            .expect("Failed to restore the original directory.");
+    }
+}