Add isAnyAddressAvailableAsync

1 files changed, 4 insertions, 0 deletions

diff --git a/src/utils/assert.ts b/src/utils/assert.ts
index 621c11eda..7ab1b7c62 100644
--- a/src/utils/assert.ts
+++ b/src/utils/assert.ts
@@ -37,6 +37,10 @@ export const assert = {
         assert.assert(isSenderAddressAvailable, `Specified ${variableName} ${senderAddressHex} isn't available \ 
                                                  through the supplied web3 instance`);
     },
+    async isAnyAddressAvailableAsync(web3Wrapper: Web3Wrapper): Promise<void> {
+        const availableAddresses = await web3Wrapper.getAvailableAddressesAsync();
+        this.assert(!_.isEmpty(availableAddresses), 'No addresses are available on the provided web3 instance');
+    },
     isNumber(variableName: string, value: number): void {
         this.assert(_.isFinite(value), this.typeAssertionMessage(variableName, 'number', value));
     },