1 files changed, 19 insertions, 0 deletions
diff --git a/packages/web3-wrapper/test/web3_wrapper_test.ts b/packages/web3-wrapper/test/web3_wrapper_test.ts
index 326efe654..1843bcf2c 100644
--- a/packages/web3-wrapper/test/web3_wrapper_test.ts
+++ b/packages/web3-wrapper/test/web3_wrapper_test.ts
@@ -2,6 +2,7 @@ import * as chai from 'chai';
 import * as Ganache from 'ganache-core';
 import 'make-promises-safe';
 import 'mocha';
+import * as Web3 from 'web3';
 
 import { Web3Wrapper } from '../src';
 
@@ -37,4 +38,22 @@ describe('Web3Wrapper tests', () => {
             expect(networkId).to.be.equal(NETWORK_ID);
         });
     });
+    describe('mining functions', () => {
+        it('starts and stops the miner', async () => {
+            // Note: depending on our provider, the miner may or may not already
+            // be mining. To account for both conditions, we have what might
+            // look like too many stops and starts here, but it is necessary.
+            await web3Wrapper.minerStopAsync();
+            let isMining = await web3Wrapper.isMiningAsync();
+            expect(isMining).to.be.false();
+            await web3Wrapper.minerStartAsync(1);
+            isMining = await web3Wrapper.isMiningAsync();
+            expect(isMining).to.be.true();
+            isMining = await web3Wrapper.isMiningAsync();
+            expect(isMining).to.be.true();
+            await web3Wrapper.minerStopAsync();
+            isMining = await web3Wrapper.isMiningAsync();
+            expect(isMining).to.be.false();
+        });
+    });
 });