Implement native WebRtcTest validation (#96)

programs/tests/webrtc_test_cli.rs

@@ -0,0 +1,103 @@
+use std::process::{Command, Output, Stdio};
+
+const EXIT_USAGE: i32 = 2;
+
+fn run(args: &[&str]) -> Output {
+    Command::new(env!("CARGO_BIN_EXE_webrtc-test"))
+        .args(args)
+        .env_remove("GRID_FIRST_NAME")
+        .env_remove("GRID_LAST_NAME")
+        .env_remove("GRID_PASSWORD")
+        .env_remove("GRID_LOGIN_URL")
+        .stdin(Stdio::null())
+        .stdout(Stdio::piped())
+        .stderr(Stdio::piped())
+        .output()
+        .expect("run webrtc-test")
+}
+
+fn text(bytes: &[u8]) -> &str {
+    std::str::from_utf8(bytes).expect("UTF-8 process output")
+}
+
+#[test]
+fn help_documents_native_prerequisites_fake_flow_and_live_gates() {
+    let output = run(&["--help"]);
+    assert!(output.status.success());
+    let help = text(&output.stdout);
+    for marker in [
+        "--fake",
+        "--list-devices",
+        "--allow-live-login",
+        "--confirm-live-login",
+        "--allow-session-audio",
+        "--input-device",
+        "--output-device",
+        "--wav",
+        "ICE/DTLS/SRTP/SCTP",
+        "Native libopus",
+        "--features real-audio",
+    ] {
+        assert!(help.contains(marker), "help omitted {marker}:\n{help}");
+    }
+    assert_eq!(run(&[]).status.code(), Some(EXIT_USAGE));
+}
+
+#[test]
+fn fake_peer_exercises_media_data_channel_and_clean_teardown() {
+    let output = run(&["--fake", "--timeout-seconds", "10"]);
+    assert!(
+        output.status.success(),
+        "stdout:\n{}\nstderr:\n{}",
+        text(&output.stdout),
+        text(&output.stderr)
+    );
+    let stdout = text(&output.stdout);
+    for marker in [
+        "ice=connected",
+        "dtls=connected",
+        "srtp=opus",
+        "sctp=SLData",
+        "sent-audio=4",
+        "active-peer-tasks=0",
+        "active-audio-tasks=0",
+    ] {
+        assert!(
+            stdout.contains(marker),
+            "output omitted {marker}:\n{stdout}"
+        );
+    }
+    assert!(output.stderr.is_empty(), "{}", text(&output.stderr));
+}
+
+#[test]
+fn virtual_devices_are_available_without_physical_hardware() {
+    let output = run(&["--list-devices"]);
+    assert!(output.status.success(), "{}", text(&output.stderr));
+    let stdout = text(&output.stdout);
+    assert!(stdout.contains("input\tvirtual:microphone"));
+    assert!(stdout.contains("output\tvirtual:speaker"));
+}
+
+#[test]
+fn live_inputs_are_rejected_before_network_without_both_opt_ins_or_secret_echo() {
+    let output = run(&["First", "Last", "do-not-echo"]);
+    assert_eq!(output.status.code(), Some(EXIT_USAGE));
+    assert!(text(&output.stderr).contains("--allow-live-login"));
+    assert!(!text(&output.stderr).contains("do-not-echo"));
+
+    let output = run(&[
+        "First",
+        "Last",
+        "do-not-echo",
+        "--allow-live-login",
+        "--confirm-live-login",
+        "WRONG",
+    ]);
+    assert_eq!(output.status.code(), Some(EXIT_USAGE));
+    assert!(!text(&output.stderr).contains("do-not-echo"));
+
+    let output = run(&["First", "Last", "do-not-echo", "--fake"]);
+    assert_eq!(output.status.code(), Some(EXIT_USAGE));
+    assert!(!text(&output.stderr).contains("do-not-echo"));
+}