diff --git a/web3.js/package.json b/web3.js/package.json
index 1b4dd1099b30fc..9c1733ac0ab2bf 100644
--- a/web3.js/package.json
+++ b/web3.js/package.json
@@ -39,6 +39,7 @@
     "bpf-sdk:install": "bin/bpf-sdk-install.sh",
     "bpf-sdk:remove-symlinks": "find bpf-sdk -type l -print -exec cp {} {}.tmp \\; -exec mv {}.tmp {} \\;",
     "build": "cross-env NODE_ENV=production rollup -c",
+    "build:fixtures": "./test/fixtures/noop-c/build.sh; ./test/fixtures/noop-rust/build.sh",
     "clean": "rimraf ./coverage ./lib",
     "codecov": "set -ex; npm run test:cover; cat ./coverage/lcov.info | codecov",
     "dev": "cross-env NODE_ENV=development rollup -c",
@@ -59,10 +60,10 @@
     "prepare": "run-s clean bpf-sdk:install bpf-sdk:remove-symlinks build",
     "pretty": "prettier --write '{,{examples,src,test}/**/}*.js'",
     "re": "semantic-release --repository-url git@github.com:solana-labs/solana-web3.js.git",
-    "test": "cross-env NODE_ENV=test jest --useStderr",
-    "test:cover": "cross-env NODE_ENV=test jest --coverage --useStderr",
-    "test:live": "cross-env NODE_ENV=test TEST_LIVE=1 jest --useStderr",
-    "test:watch": "cross-env NODE_ENV=test jest --watch --useStderr"
+    "test": "npm run build:fixtures; cross-env NODE_ENV=test jest --useStderr",
+    "test:cover": "npm run build:fixtures; cross-env NODE_ENV=test jest --coverage --useStderr",
+    "test:live": "npm run build:fixtures; cross-env NODE_ENV=test TEST_LIVE=1 jest --useStderr",
+    "test:watch": "npm run build:fixtures; cross-env NODE_ENV=test jest --watch --useStderr"
   },
   "dependencies": {
     "@babel/runtime": "^7.3.1",
diff --git a/web3.js/test/fixtures/noop-c/noop.so b/web3.js/test/fixtures/noop-c/noop.so
deleted file mode 100755
index 4f8f9d5d04237b..00000000000000
Binary files a/web3.js/test/fixtures/noop-c/noop.so and /dev/null differ
diff --git a/web3.js/test/fixtures/noop-rust/solana_bpf_rust_noop.so b/web3.js/test/fixtures/noop-rust/solana_bpf_rust_noop.so
deleted file mode 100755
index 12c5bed1a0d766..00000000000000
Binary files a/web3.js/test/fixtures/noop-rust/solana_bpf_rust_noop.so and /dev/null differ