Add wasm32 support to integration tests

.github/workflows/main.yml

@@ -65,6 +65,16 @@ jobs:
       if: matrix.rust == 'nightly' && matrix.os != 'windows-latest'
       shell: bash
 
+  wasm-test:
+    name: Wasm tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rust-lang/setup-rust-toolchain@v1
+      - name: Install wasm-pack
+        run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+      - run: wasm-pack test --node
+
   coverage:
     name: Coverage
     runs-on: ubuntu-latest

Cargo.toml

@@ -37,6 +37,12 @@ winapi = { version = "0.3", features = ["memoryapi", "sysinfoapi", "winnt", "err
 [target.'cfg(not(windows))'.dependencies]
 libc = { version = "0.2", optional = true }
 
+[target.'cfg(target_arch = "wasm32")'.dependencies]
+getrandom = { version = "0.2.6", features = ["js", "wasm-bindgen"] }
+
+[target.'cfg(target_arch = "wasm32")'.dev-dependencies]
+wasm-bindgen-test = "0.3"
+
 [features]
 default = ["jit"]
 jit = ["libc", "winapi"]

tests/assembler.rs

@@ -11,6 +11,8 @@ extern crate test_utils;
 use solana_rbpf::{assembler::assemble, ebpf, program::BuiltinProgram, vm::TestContextObject};
 use std::sync::Arc;
 use test_utils::{TCP_SACK_ASM, TCP_SACK_BIN};
+#[cfg(target_arch = "wasm32")]
+use wasm_bindgen_test::wasm_bindgen_test as test;
 
 fn asm(src: &str) -> Result<Vec<ebpf::Insn>, String> {
     let executable = assemble::<TestContextObject>(src, Arc::new(BuiltinProgram::new_mock()))?;

tests/disassembler.rs

@@ -14,6 +14,8 @@ use solana_rbpf::{
     vm::{Config, TestContextObject},
 };
 use std::sync::Arc;
+#[cfg(target_arch = "wasm32")]
+use wasm_bindgen_test::wasm_bindgen_test as test;
 
 // Using a macro to keep actual line numbers in failure output
 macro_rules! disasm {

tests/execution.rs

@@ -11,6 +11,8 @@ extern crate libc;
 extern crate solana_rbpf;
 extern crate test_utils;
 extern crate thiserror;
+#[cfg(target_arch = "wasm32")]
+use wasm_bindgen_test::wasm_bindgen_test as test;
 
 use byteorder::{ByteOrder, LittleEndian};
 #[cfg(all(not(windows), target_arch = "x86_64"))]

tests/exercise_instructions.rs

@@ -11,6 +11,8 @@ extern crate libc;
 extern crate solana_rbpf;
 extern crate test_utils;
 extern crate thiserror;
+#[cfg(target_arch = "wasm32")]
+use wasm_bindgen_test::wasm_bindgen_test as test;
 
 use rand::{rngs::SmallRng, RngCore, SeedableRng};
 use solana_rbpf::{