Add end-to-end test framework

.github/workflows/integration-tests-events-rabbitmq.yml

@@ -32,3 +32,8 @@ jobs:
         run: cargo test --features integration-tests-events-rabbitmq --verbose --color=always -- --nocapture
         env:
           RUST_BACKTRACE: 1
+
+      - name: Run end-to-end tests
+        run: cargo test --manifest-path e2e-tests/Cargo.toml --verbose --color=always -- --test-threads=4 --nocapture
+        env:
+          RUST_BACKTRACE: 1

Cargo.toml

@@ -1,6 +1,7 @@
 [workspace]
 resolver = "2"
-members = [ "ldk-server-cli", "ldk-server-client", "ldk-server-protos", "ldk-server"]
+members = ["ldk-server-cli", "ldk-server-client", "ldk-server-protos", "ldk-server"]
+exclude = ["e2e-tests"]
 
 [profile.release]
 panic = "abort"

e2e-tests/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "e2e-tests"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+corepc-node = { version = "0.10", features = ["download", "29_0"] }
+tempfile = "3"
+tokio = { version = "1.38.0", features = ["rt-multi-thread", "macros", "time"] }
+ldk-server-client = { path = "../ldk-server-client" }
+ldk-server-protos = { path = "../ldk-server-protos", features = ["serde"] }
+serde_json = "1.0"
+hex-conservative = { version = "0.2", features = ["std"] }
+lapin = { version = "2.4.0", features = ["rustls"], default-features = false }
+prost = { version = "0.11.6", default-features = false, features = ["std"] }
+futures-util = "0.3"

e2e-tests/build.rs

@@ -0,0 +1,50 @@
+use std::env;
+use std::path::PathBuf;
+use std::process::Command;
+
+fn main() {
+	let cargo = env::var("CARGO").unwrap_or_else(|_| "cargo".to_string());
+	let profile = env::var("PROFILE").unwrap();
+
+	let workspace_root = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap())
+		.parent()
+		.expect("e2e-tests must be inside workspace")
+		.to_path_buf();
+
+	// Use a separate target directory so the inner cargo build doesn't deadlock
+	// waiting for the build directory lock held by the outer cargo.
+	let target_dir = workspace_root.join("target").join("e2e-deps");
+
+	let status = Command::new(&cargo)
+		.args([
+			"build",
+			"-p",
+			"ldk-server",
+			"--features",
+			"events-rabbitmq",
+			"-p",
+			"ldk-server-cli",
+		])
+		.current_dir(&workspace_root)
+		.env("CARGO_TARGET_DIR", &target_dir)
+		.env_remove("CARGO_ENCODED_RUSTFLAGS")
+		.status()
+		.expect("failed to run cargo build");
+
+	assert!(status.success(), "cargo build of ldk-server / ldk-server-cli failed");
+
+	let bin_dir = target_dir.join(&profile);
+	let server_bin = bin_dir.join("ldk-server");
+	let cli_bin = bin_dir.join("ldk-server-cli");
+
+	println!("cargo:rustc-env=LDK_SERVER_BIN={}", server_bin.display());
+	println!("cargo:rustc-env=LDK_SERVER_CLI_BIN={}", cli_bin.display());
+
+	// Rebuild when server or CLI source changes
+	println!("cargo:rerun-if-changed=../ldk-server/src");
+	println!("cargo:rerun-if-changed=../ldk-server/Cargo.toml");
+	println!("cargo:rerun-if-changed=../ldk-server-cli/src");
+	println!("cargo:rerun-if-changed=../ldk-server-cli/Cargo.toml");
+	println!("cargo:rerun-if-changed=../ldk-server-protos/src");
+	println!("cargo:rerun-if-changed=../ldk-server-protos/Cargo.toml");
+}