Upgrade truffle dev dep to fix broken import test

package.json

@@ -1,6 +1,6 @@
 {
   "name": "solidity-coverage",
-  "version": "0.7.0-beta.2",
+  "version": "0.7.0-beta.3",
   "description": "",
   "main": "plugins/buidler.plugin.js",
   "bin": {
@@ -53,7 +53,7 @@
     "mocha": "5.2.0",
     "nyc": "^14.1.1",
     "solc": "^0.5.10",
-    "truffle": "^5.0.31",
+    "truffle": "5.0.31",
     "truffle-config": "^1.1.18"
   }
 }

test/integration/projects/import-paths/contracts/OnlyUsesImports.sol

@@ -1,5 +1,3 @@
 pragma solidity >=0.4.21 <0.6.0;
 
 import "package/AnotherImport.sol";
-
-interface Void {}

test/units/truffle/flags.js

@@ -27,6 +27,20 @@ describe('Truffle Plugin: command line options', function() {
 
   afterEach(() => mock.clean());
 
+  // Running out of memory...
+  it('--usePluginTruffle', async function(){
+    truffleConfig.usePluginTruffle = true;
+    truffleConfig.logger = mock.testLogger;
+
+    mock.install('Simple', 'simple.js', solcoverConfig);
+    await plugin(truffleConfig);
+
+    assert(
+      mock.loggerOutput.val.includes('fallback Truffle library module'),
+      `Should notify it's using plugin truffle lib copy: ${mock.loggerOutput.val}`
+    );
+  });
+
   it('--file test/<fileName>', async function() {
     truffleConfig.file = path.join(
       truffleConfig.working_directory,
@@ -186,19 +200,6 @@ describe('Truffle Plugin: command line options', function() {
     );
   });
 
-  it('--usePluginTruffle', async function(){
-    truffleConfig.usePluginTruffle = true;
-    truffleConfig.logger = mock.testLogger;
-
-    mock.install('Simple', 'simple.js', solcoverConfig);
-    await plugin(truffleConfig);
-
-    assert(
-      mock.loggerOutput.val.includes('fallback Truffle library module'),
-      `Should notify it's using plugin truffle lib copy: ${mock.loggerOutput.val}`
-    );
-  });
-
   it('--temp', async function(){
     truffleConfig.logger = mock.testLogger;
 

test/units/truffle/standard.js

@@ -102,9 +102,26 @@ describe('Truffle Plugin: standard use cases', function() {
     verify.lineCoverage(expected);
   });
 
-  it('with relative path solidity imports', async function() {
+  it('imports: relative path imports & file w/ only-import statements', async function() {
+    // Earlier versions of truffle crash on this case (5.0.31)
+    // Later versions of truffle OOM (5.1.2)
+    truffleConfig.useGlobalTruffle = true;
+
     mock.installFullProject('import-paths');
     await plugin(truffleConfig);
+
+    const expected = [
+      {
+        file: mock.pathToContract(truffleConfig, 'OnlyUsesImports.sol'),
+        pct: 100
+      },
+      {
+        file: mock.pathToContract(truffleConfig, 'UsesImports.sol'),
+        pct: 100,
+      },
+    ];
+
+    verify.lineCoverage(expected);
   });
 
   it('uses libraries', async function() {

test/util/integration.js

@@ -7,6 +7,7 @@ const path = require('path');
 const fs = require('fs');
 const shell = require('shelljs');
 const decache = require('decache');
+const globalModules = require('global-modules');
 
 const TruffleConfig = require('truffle-config');
 const { resetBuidlerContext } = require("@nomiclabs/buidler/plugins-testing")

yarn.lock

@@ -7372,7 +7372,7 @@ truffle-provider@^0.1.14:
     truffle-interface-adapter "^0.2.3"
     web3 "1.2.1"
 
-truffle@^5.0.31:
+[email protected]:
   version "5.0.31"
   resolved "https://registry.yarnpkg.com/truffle/-/truffle-5.0.31.tgz#372a826e330720e29514458ff25750aa2b5efa65"
   integrity sha512-dNBH5OFcqHXCaaQO0YGcEtNarIPcToU+tbq+lBph4tI2YjboiwakguvrNCL+cTP4sySKqeg+2QA1W5miyOQGpA==