feat: add integration tests

- Add `assert_cmd` to `dev-dependencies` in `Cargo.toml`

Cargo.toml

@@ -19,3 +19,6 @@ clap = { version = "4.4.11", features = ["derive", "env"] }
 regex = "1.10.2"
 serde = { version = "1.0.193", features = ["derive"] }
 thiserror = "1.0.51"
+
+[dev-dependencies]
+assert_cmd = "2.0.12"

tests/integration_test.rs

@@ -0,0 +1,48 @@
+struct Setup {
+    cmd: assert_cmd::Command,
+    email: String,
+    password: String,
+}
+
+fn setup() -> Setup {
+    let cmd = assert_cmd::Command::cargo_bin("jobcan").expect("Failed to find jobcan binary");
+    let email = std::env::var("JOBCAN_EMAIL").expect("JOBCAN_EMAIL is not set");
+    let password = std::env::var("JOBCAN_PASSWORD").expect("JOBCAN_PASSWORD is not set");
+    Setup {
+        cmd,
+        email,
+        password,
+    }
+}
+
+#[tokio::test]
+async fn process_of_getting_work_status_correctly() {
+    let Setup {
+        mut cmd,
+        email,
+        password,
+    } = setup();
+    cmd.arg("status")
+        .arg("--email")
+        .arg(email)
+        .arg("--password")
+        .arg(password)
+        .assert()
+        .success();
+}
+
+#[tokio::test]
+async fn process_of_getting_group_list_correctly() {
+    let Setup {
+        mut cmd,
+        email,
+        password,
+    } = setup();
+    cmd.arg("list-groups")
+        .arg("--email")
+        .arg(email)
+        .arg("--password")
+        .arg(password)
+        .assert()
+        .success();
+}