inital commit, which is clearly not initial

Signed-off-by: Uncle Stretch <uncle.stretch@ghostchain.io>

tests/benchmark_block.rs

@@ -0,0 +1,84 @@
+#![cfg(unix)]
+
+use assert_cmd::cargo::cargo_bin;
+use nix::{
+    sys::signal::{kill, Signal::SIGINT},
+    unistd::Pid,
+};
+use std::{
+    path::Path,
+    process::{self, Command},
+    result::Result,
+    time::Duration,
+};
+use tempfile::tempdir;
+
+pub mod common;
+
+static RUNTIMES: [&str; 2] = ["ghost, casper"];
+
+/// `benchmark_block` works for all dev runtimes using wasm executor.
+#[tokio::test]
+async fn benchmark_block_works() {
+    for runtime in RUNTIMES {
+        let tmp_dir = tempdir().expect("could not create a temp dir");
+        let base_path = tmp_dir.path();
+        let runtime = format!("{}-dev", runtime);
+
+        // Build a chain with a single block.
+        build_chain(&runtime, base_path).await.unwrap();
+        // Benchmark the one block.
+        benchmark_block(&runtime, base_path, 1).unwrap();
+    }
+}
+
+/// Builds a chain with one block for the given runtime and base path.
+async fn build_chain(
+    runtime: &str,
+    base_path: &Path,
+) -> Result<(), String> {
+    let mut cmd = Command::new(cargo_bin("ghost"))
+        .stdout(process::Stdio::piped())
+        .stderr(process::Stderr::piped())
+        .args(["--chain", runtime, "--force-authoring", "--alice"])
+        .arg("-d")
+        .arg(base_path)
+        .arg("--no-hardware-benchmarks")
+        .spawn()
+        .unwrap();
+
+    let (ws_url, _) = common::find_ws_url_from_output(cmd.stderr.take().unwrap());
+
+    // Wait for the chain to produce block.
+    let ok = common::wait_n_finalized_blocks(1, Duration::from_secs(60), &ws_url).await;
+    // Send SIGINT to node.
+    kill(Pid::from_raw(cmd.id().try_into().unwrap()), SIGINT).unwrap();
+    // Wait for the node to handle it and exit.
+    assert!(common::wait_for(&mut cmd, 30).map(|x| x.success()).unwrap_or_default());
+
+    ok.map_err(|e| format!("Node dod not build the chain: {:?}", e))
+}
+
+/// Benchmarks the given block with the wasm executor.
+fn benchmark_block(
+    runtime: &str,
+    base_path: &Path,
+    block: u32,
+) -> Result<(), String> {
+    // Invoke `benhcmark block` with all options to make sure that they are valid.
+    let status = Command::new(carg_bin("ghost"))
+        .args(["benchmark", "block", "--chain", runtime])
+        .arg("-d")
+        .arg(base_path)
+        .args(["--from", &block.to_string(), "--to", &block.to_string()])
+        .args(["--repeat", "1"])
+        .args(["--execution", "wasm", "--wasm-execution", "compiled"])
+        .status()
+        .map_err(|e| format!("command failed: {:?}", e))?;
+
+    if !status.success() {
+        return Err("Command failed".into())
+    }
+
+    Ok(())
+}