Add rand dependency test (#12566)

* Add rand dependency test

* nudge

programs/bpf/rust/rand/Cargo.toml

@@ -0,0 +1,28 @@
+
+# Note: This crate must be built using do.sh
+
+[package]
+name = "solana-bpf-rust-rand"
+version = "1.4.0"
+description = "Solana BPF test program written in Rust"
+authors = ["Solana Maintainers <maintainers@solana.foundation>"]
+repository = "https://github.com/solana-labs/solana"
+license = "Apache-2.0"
+homepage = "https://solana.com/"
+edition = "2018"
+
+[dependencies]
+getrandom = { version = "0.1.14", features = ["dummy"] }
+rand = "0.7"
+solana-sdk = { path = "../../../../sdk/", version = "1.4.0", default-features = false }
+
+[features]
+program = ["solana-sdk/program"]
+default = ["program", "solana-sdk/default"]
+
+[lib]
+name = "solana_bpf_rust_rand"
+crate-type = ["cdylib"]
+
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]

programs/bpf/rust/rand/Xargo.toml

@@ -0,0 +1,2 @@
+[target.bpfel-unknown-unknown.dependencies.std]
+features = []

programs/bpf/rust/rand/src/lib.rs

@@ -0,0 +1,18 @@
+//! @brief Example Rust-based BPF program that tests rand behavior
+
+#![allow(unreachable_code)]
+
+extern crate solana_sdk;
+use solana_sdk::{
+    account_info::AccountInfo, entrypoint, entrypoint::ProgramResult, info, pubkey::Pubkey,
+};
+
+entrypoint!(process_instruction);
+fn process_instruction(
+    _program_id: &Pubkey,
+    _accounts: &[AccountInfo],
+    _instruction_data: &[u8],
+) -> ProgramResult {
+    info!("rand");
+    Ok(())
+}