From 777342a1eff0fd291392d0fdd304b63d5e8e2519 Mon Sep 17 00:00:00 2001
From: Jack May <jack@solana.com>
Date: Tue, 29 Sep 2020 17:25:51 -0700
Subject: [PATCH] Add rand dependency test (#12566)

* Add rand dependency test

* nudge
---
 programs/bpf/Cargo.lock           |  9 +++++++++
 programs/bpf/Cargo.toml           |  1 +
 programs/bpf/build.rs             |  1 +
 programs/bpf/rust/rand/Cargo.toml | 28 ++++++++++++++++++++++++++++
 programs/bpf/rust/rand/Xargo.toml |  2 ++
 programs/bpf/rust/rand/src/lib.rs | 18 ++++++++++++++++++
 programs/bpf/tests/programs.rs    |  1 +
 7 files changed, 60 insertions(+)
 create mode 100644 programs/bpf/rust/rand/Cargo.toml
 create mode 100644 programs/bpf/rust/rand/Xargo.toml
 create mode 100644 programs/bpf/rust/rand/src/lib.rs

diff --git a/programs/bpf/Cargo.lock b/programs/bpf/Cargo.lock
index 50075014f..90ad25af3 100644
--- a/programs/bpf/Cargo.lock
+++ b/programs/bpf/Cargo.lock
@@ -1896,6 +1896,15 @@ dependencies = [
  "solana-sdk",
 ]
 
+[[package]]
+name = "solana-bpf-rust-rand"
+version = "1.4.0"
+dependencies = [
+ "getrandom",
+ "rand",
+ "solana-sdk",
+]
+
 [[package]]
 name = "solana-bpf-rust-sanity"
 version = "1.4.0"
diff --git a/programs/bpf/Cargo.toml b/programs/bpf/Cargo.toml
index 359983db3..4887866e6 100644
--- a/programs/bpf/Cargo.toml
+++ b/programs/bpf/Cargo.toml
@@ -52,6 +52,7 @@ members = [
     "rust/panic",
     "rust/param_passing",
     "rust/param_passing_dep",
+    "rust/rand",
     "rust/sanity",
     "rust/sysval",
 ]
diff --git a/programs/bpf/build.rs b/programs/bpf/build.rs
index 292606211..85c018837 100644
--- a/programs/bpf/build.rs
+++ b/programs/bpf/build.rs
@@ -80,6 +80,7 @@ fn main() {
             "noop",
             "panic",
             "param_passing",
+            "rand",
             "sanity",
             "sysval",
         ];
diff --git a/programs/bpf/rust/rand/Cargo.toml b/programs/bpf/rust/rand/Cargo.toml
new file mode 100644
index 000000000..f4309c1db
--- /dev/null
+++ b/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"]
diff --git a/programs/bpf/rust/rand/Xargo.toml b/programs/bpf/rust/rand/Xargo.toml
new file mode 100644
index 000000000..1744f098a
--- /dev/null
+++ b/programs/bpf/rust/rand/Xargo.toml
@@ -0,0 +1,2 @@
+[target.bpfel-unknown-unknown.dependencies.std]
+features = []
\ No newline at end of file
diff --git a/programs/bpf/rust/rand/src/lib.rs b/programs/bpf/rust/rand/src/lib.rs
new file mode 100644
index 000000000..4424f3ad4
--- /dev/null
+++ b/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(())
+}
diff --git a/programs/bpf/tests/programs.rs b/programs/bpf/tests/programs.rs
index 5d0c18e14..ba4df7f22 100644
--- a/programs/bpf/tests/programs.rs
+++ b/programs/bpf/tests/programs.rs
@@ -152,6 +152,7 @@ fn test_program_bpf_sanity() {
             ("solana_bpf_rust_noop", true),
             ("solana_bpf_rust_panic", false),
             ("solana_bpf_rust_param_passing", true),
+            ("solana_bpf_rust_rand", true),
             ("solana_bpf_rust_sanity", true),
             ("solana_bpf_rust_sysval", true),
         ]);