[tests] Add a proc macro to generate tests for OnlineBlockchain types

testutils/Cargo.toml

@@ -0,0 +1,22 @@
+[package]
+name = "testutils"
+version = "0.1.0"
+authors = ["Alekos Filini <alekos.filini@gmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+# The latest bitcoincore-rpc depends on an older version of bitcoin, which in turns depends on an
+# older version of secp256k1, which causes conflicts during linking. Use my fork right now, we can
+# switch back to crates.io as soon as rust-bitcoin is updated in rust-bitcoincore-rpc.
+#
+# Tracking issue: https://github.com/rust-bitcoin/rust-bitcoincore-rpc/pull/80
+
+[dependencies]
+log = "0.4.8"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+serial_test = "0.4"
+bitcoin = "0.23"
+bitcoincore-rpc = "0.11"
+electrum-client = "0.2.0-beta.1"