Add missing return types

2 files changed, 4 insertions, 4 deletions

diff --git a/test/utils/blockchain_clean.ts b/test/utils/blockchain_clean.ts
index 6468dbec7..18b7e3a5b 100644
--- a/test/utils/blockchain_clean.ts
+++ b/test/utils/blockchain_clean.ts
@@ -7,10 +7,10 @@ export class BlockchainClean {
         this.rpc = new RPC();
     }
     // TODO: Check if running on TestRPC or on actual node, if actual node, re-deploy contracts instead
-    public async setupAsync() {
+    public async setupAsync(): Promise<void> {
         this.snapshotId = await this.rpc.takeSnapshotAsync();
     }
-    public async restoreAsync() {
+    public async restoreAsync(): Promise<void> {
         const didRevert = await this.rpc.revertSnapshotAsync(this.snapshotId);
         if (!didRevert) {
             throw new Error(`Snapshot with id #${this.snapshotId} failed to revert`);
diff --git a/test/utils/rpc.ts b/test/utils/rpc.ts
index b689a938c..e331fa6d4 100644
--- a/test/utils/rpc.ts
+++ b/test/utils/rpc.ts
@@ -26,7 +26,7 @@ export class RPC {
         const didRevert = await this.sendAsync(payload);
         return didRevert;
     }
-    private toPayload(method: string, params: any[] = []) {
+    private toPayload(method: string, params: any[] = []): string {
         const payload = JSON.stringify({
             id: this.id,
             method,
@@ -35,7 +35,7 @@ export class RPC {
         this.id += 1;
         return payload;
     }
-    private async sendAsync(payload: string) {
+    private async sendAsync(payload: string): Promise<any> {
         const opts = {
             method: 'POST',
             uri: `http://${this.host}:${this.port}`,