integration test using blob from fixture to start a diem-node in test…

… mode

ol/genesis-tools/tests/start_node_from_blob.rs

@@ -0,0 +1,49 @@
+use std::io::BufRead;
+use std::io::BufReader;
+use std::path::PathBuf;
+use std::process::Command;
+use std::process::Stdio;
+
+#[test]
+fn start_test_node() {
+    std::env::set_var("RUST_LOG", "debug");
+    let source_path = Path::new(env!("CARGO_MANIFEST_DIR"));
+    let blob_path = blob_path();
+    let mut swarm_cmd = Command::new("cargo");
+    swarm_cmd.current_dir(&source_path.as_os_str());
+    swarm_cmd
+        .arg("run")
+        .arg("-p")
+        .arg("diem-node")
+        .arg("--")
+        .arg("--test")
+        .arg("--genesis-modules")
+        .arg(&blob_path.as_os_str());
+    let mut cmd = swarm_cmd
+        .stdout(Stdio::piped())
+        .stderr(Stdio::inherit()) // so we see error
+        .spawn()
+        .expect("could not start diem-node");
+
+    let stdout = cmd.stdout.take().expect("no stdout");
+    // let mut a = BufReader::new(stdout);
+    // let line = a
+    BufReader::new(stdout)
+    .lines()
+    .find(|e| {
+        dbg!(&e);
+        e.as_ref().unwrap().contains("==== 10")
+    });
+}
+
+fn blob_path() -> PathBuf {
+    use std::path::Path;
+    let path = env!("CARGO_MANIFEST_DIR");
+    Path::new(path)
+        .parent()
+        .unwrap()
+        .parent()
+        .unwrap()
+        .join("ol/fixtures/rescue/sample_export_recovery.json")
+        .to_owned()
+}