4 files changed, 59 insertions, 26 deletions
diff --git a/packages/dev-utils/CHANGELOG.json b/packages/dev-utils/CHANGELOG.json
index 56ecd023e..f94fd5f30 100644
--- a/packages/dev-utils/CHANGELOG.json
+++ b/packages/dev-utils/CHANGELOG.json
@@ -1,5 +1,23 @@
 [
     {
+        "timestamp": 1532043000,
+        "version": "1.0.0",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1531919263,
+        "version": "0.4.6",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1531149657,
         "version": "0.4.5",
         "changes": [
diff --git a/packages/dev-utils/CHANGELOG.md b/packages/dev-utils/CHANGELOG.md
index 55e12b2dd..de9287478 100644
--- a/packages/dev-utils/CHANGELOG.md
+++ b/packages/dev-utils/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.4.6 - _July 18, 2018_
+
+    * Dependencies updated
+
 ## v0.4.5 - _July 9, 2018_
 
     * Dependencies updated
diff --git a/packages/dev-utils/package.json b/packages/dev-utils/package.json
index f0ef24684..7a1f3c4ff 100644
--- a/packages/dev-utils/package.json
+++ b/packages/dev-utils/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/dev-utils",
-    "version": "0.4.5",
+    "version": "1.0.0",
     "engines": {
         "node": ">=6.12"
     },
@@ -30,8 +30,8 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/dev-utils/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.2.2",
-        "@0xproject/tslint-config": "^0.4.21",
+        "@0xproject/monorepo-scripts": "^1.0.0",
+        "@0xproject/tslint-config": "^1.0.0",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.42",
         "chai": "^4.0.1",
@@ -41,16 +41,16 @@
         "npm-run-all": "^4.1.2",
         "nyc": "^11.0.1",
         "shx": "^0.2.2",
-        "tslint": "5.8.0",
+        "tslint": "5.11.0",
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/subproviders": "^0.10.5",
-        "@0xproject/types": "^0.8.2",
-        "@0xproject/utils": "^0.7.2",
-        "ethereum-types": "^0.0.2",
-        "@0xproject/typescript-typings": "^0.4.2",
-        "@0xproject/web3-wrapper": "^0.7.2",
+        "@0xproject/subproviders": "^1.0.0",
+        "@0xproject/types": "^1.0.0-rc.1",
+        "@0xproject/utils": "^1.0.0",
+        "ethereum-types": "^1.0.0",
+        "@0xproject/typescript-typings": "^1.0.0",
+        "@0xproject/web3-wrapper": "^1.0.0",
         "lodash": "^4.17.4"
     },
     "publishConfig": {
diff --git a/packages/dev-utils/src/blockchain_lifecycle.ts b/packages/dev-utils/src/blockchain_lifecycle.ts
index 9bd65ee5d..a48cb0856 100644
--- a/packages/dev-utils/src/blockchain_lifecycle.ts
+++ b/packages/dev-utils/src/blockchain_lifecycle.ts
@@ -10,8 +10,8 @@ import * as _ from 'lodash';
 const MINIMUM_BLOCKS = 3;
 
 export class BlockchainLifecycle {
-    private _web3Wrapper: Web3Wrapper;
-    private _snapshotIdsStack: number[];
+    private readonly _web3Wrapper: Web3Wrapper;
+    private readonly _snapshotIdsStack: number[];
     private _addresses: string[] = [];
     private _nodeType: NodeType | undefined;
     constructor(web3Wrapper: Web3Wrapper) {
@@ -34,6 +34,12 @@ export class BlockchainLifecycle {
                     blockNumber = await this._web3Wrapper.getBlockNumberAsync();
                 }
                 this._snapshotIdsStack.push(blockNumber);
+                // HACK(albrow) It's possible that we applied a time offset but
+                // the transaction we mined to put that time offset into the
+                // blockchain was reverted. As a workaround, we mine a new dummy
+                // block so that the latest block timestamp accounts for any
+                // possible time offsets.
+                await this._mineDummyBlockAsync();
                 break;
             default:
                 throw new Error(`Unknown node type: ${nodeType}`);
@@ -59,22 +65,9 @@ export class BlockchainLifecycle {
     }
     private async _mineMinimumBlocksAsync(): Promise<void> {
         logUtils.warn('WARNING: minimum block number for tests not met. Mining additional blocks...');
-        if (this._addresses.length === 0) {
-            this._addresses = await this._web3Wrapper.getAvailableAddressesAsync();
-            if (this._addresses.length === 0) {
-                throw new Error('No accounts found');
-            }
-        }
         while ((await this._web3Wrapper.getBlockNumberAsync()) < MINIMUM_BLOCKS) {
             logUtils.warn('Mining block...');
-            await this._web3Wrapper.awaitTransactionMinedAsync(
-                await this._web3Wrapper.sendTransactionAsync({
-                    from: this._addresses[0],
-                    to: this._addresses[0],
-                    value: '0',
-                }),
-                0,
-            );
+            await this._mineDummyBlockAsync();
         }
         logUtils.warn('Done mining the minimum number of blocks.');
     }
@@ -84,4 +77,22 @@ export class BlockchainLifecycle {
         }
         return this._nodeType;
     }
+    // Sends a transaction that has no real effect on the state and waits for it
+    // to be mined.
+    private async _mineDummyBlockAsync(): Promise<void> {
+        if (this._addresses.length === 0) {
+            this._addresses = await this._web3Wrapper.getAvailableAddressesAsync();
+            if (this._addresses.length === 0) {
+                throw new Error('No accounts found');
+            }
+        }
+        await this._web3Wrapper.awaitTransactionMinedAsync(
+            await this._web3Wrapper.sendTransactionAsync({
+                from: this._addresses[0],
+                to: this._addresses[0],
+                value: '0',
+            }),
+            0,
+        );
+    }
 }