Program-Test: Add test for BPF programs (anza-xyz#1416)

program-test/tests/bpf.rs

@@ -0,0 +1,43 @@
+use {
+    solana_program_test::ProgramTest,
+    solana_sdk::{
+        bpf_loader, instruction::Instruction, pubkey::Pubkey, signature::Signer,
+        transaction::Transaction,
+    },
+};
+
+#[tokio::test]
+async fn test_add_bpf_program() {
+    let program_id = Pubkey::new_unique();
+
+    std::env::set_var("SBF_OUT_DIR", "../programs/bpf_loader/test_elfs/out");
+
+    let mut program_test = ProgramTest::default();
+    program_test.prefer_bpf(true);
+    program_test.add_program("noop_aligned", program_id, None);
+
+    let mut context = program_test.start_with_context().await;
+
+    // Assert the program is a BPF Loader 2 program.
+    let program_account = context
+        .banks_client
+        .get_account(program_id)
+        .await
+        .unwrap()
+        .unwrap();
+    assert_eq!(program_account.owner, bpf_loader::id());
+
+    // Invoke the program.
+    let instruction = Instruction::new_with_bytes(program_id, &[], Vec::new());
+    let transaction = Transaction::new_signed_with_payer(
+        &[instruction],
+        Some(&context.payer.pubkey()),
+        &[&context.payer],
+        context.last_blockhash,
+    );
+    context
+        .banks_client
+        .process_transaction(transaction)
+        .await
+        .unwrap();
+}