posta: generic IMAP/SMTP mail CLI with JSON outputHEADmain

1 files changed, 144 insertions, 0 deletions

diff --git a/tests/cli.rs b/tests/cli.rs
new file mode 100644
index 0000000..deca4ae
--- /dev/null
+++ b/tests/cli.rs
@@ -0,0 +1,144 @@
+//! End-to-end CLI tests that don't need a mail server.
+
+use assert_cmd::Command;
+use predicates::prelude::*;
+use std::io::Write;
+
+fn posta() -> Command {
+    let mut cmd = Command::cargo_bin("posta").unwrap();
+    // Isolate from the developer's real config and environment.
+    for (k, _) in std::env::vars() {
+        if k.starts_with("POSTA_") {
+            cmd.env_remove(k);
+        }
+    }
+    cmd
+}
+
+fn write_config(dir: &tempfile::TempDir, contents: &str) -> std::path::PathBuf {
+    let path = dir.path().join("config.toml");
+    let mut f = std::fs::File::create(&path).unwrap();
+    f.write_all(contents.as_bytes()).unwrap();
+    path
+}
+
+const SAMPLE: &str = r#"
+default_account = "personal"
+
+[accounts.personal]
+email = "alice@example.com"
+imap_url = "imap://alice@mail.example.com"
+smtp_url = "smtp://alice@mail.example.com"
+password = "x"
+
+[accounts.work]
+email = "alice@work.example"
+imap_url = "imaps://alice@imap.work.example"
+"#;
+
+#[test]
+fn help_mentions_the_basics() {
+    posta()
+        .arg("--help")
+        .assert()
+        .success()
+        .stdout(predicate::str::contains("IMAP/SMTP"))
+        .stdout(predicate::str::contains("send"))
+        .stdout(predicate::str::contains("list"));
+}
+
+#[test]
+fn version_prints_name_and_number() {
+    posta()
+        .arg("--version")
+        .assert()
+        .success()
+        .stdout(predicate::str::contains("posta"));
+}
+
+#[test]
+fn accounts_lists_names_without_secrets() {
+    let dir = tempfile::tempdir().unwrap();
+    let cfg = write_config(&dir, SAMPLE);
+    posta()
+        .arg("--config")
+        .arg(&cfg)
+        .arg("accounts")
+        .assert()
+        .success()
+        .stdout(predicate::str::contains("personal"))
+        .stdout(predicate::str::contains("work"))
+        .stdout(predicate::str::contains("\"x\"").not());
+}
+
+#[test]
+fn missing_config_file_is_a_clear_error() {
+    posta()
+        .env("POSTA_CONFIG", "/nonexistent/posta.toml")
+        .arg("status")
+        .assert()
+        .failure()
+        .stderr(predicate::str::contains("cannot read config file"));
+}
+
+#[test]
+fn unknown_account_error_lists_available_ones() {
+    let dir = tempfile::tempdir().unwrap();
+    let cfg = write_config(&dir, SAMPLE);
+    posta()
+        .arg("--config")
+        .arg(&cfg)
+        .args(["--account", "nope", "status"])
+        .assert()
+        .failure()
+        .stderr(predicate::str::contains("personal").and(predicate::str::contains("work")));
+}
+
+#[test]
+fn invalid_toml_reports_the_file() {
+    let dir = tempfile::tempdir().unwrap();
+    let cfg = write_config(&dir, "accounts = 42");
+    posta()
+        .arg("--config")
+        .arg(&cfg)
+        .arg("status")
+        .assert()
+        .failure()
+        .stderr(predicate::str::contains("invalid config file"));
+}
+
+#[test]
+fn env_only_mode_needs_no_config_file() {
+    // No config file at all: endpoints come from the environment. The URL is
+    // parsed before any connection is attempted, so a bad one fails fast.
+    posta()
+        .env("POSTA_CONFIG", "/nonexistent/posta.toml")
+        .env_remove("POSTA_CONFIG") // ensure truly unset
+        .env("HOME", "/nonexistent-home")
+        .env("POSTA_IMAP_URL", "ftp://wrong")
+        .arg("status")
+        .assert()
+        .failure()
+        .stderr(predicate::str::contains("imap://"));
+}
+
+#[test]
+fn send_rejects_invalid_recipient_before_connecting() {
+    let dir = tempfile::tempdir().unwrap();
+    let cfg = write_config(&dir, SAMPLE);
+    posta()
+        .arg("--config")
+        .arg(&cfg)
+        .args([
+            "send",
+            "--to",
+            "not-an-address",
+            "--subject",
+            "hi",
+            "--body",
+            "x",
+        ])
+        .assert()
+        .failure()
+        .stderr(predicate::str::contains("invalid recipient"));
+}