MAGETWO-89542: Eliminate module versions in Git

Author: Alex Paliarush

dev/tests/static/testsuite/Magento/Test/Integrity/ComposerTest.php

@@ -177,28 +177,33 @@ private function assertMagentoConventions($dir, $packageType, \StdClass $json)
                 $this->assertDependsOnFramework($json->require);
                 $this->assertRequireInSync($json);
                 $this->assertAutoload($json);
+                $this->assertNoVersionSpecified($json);
                 break;
             case 'magento2-language':
                 $this->assertRegExp('/^magento\/language\-[a-z]{2}_([a-z]{4}_)?[a-z]{2}$/', $json->name);
                 $this->assertDependsOnFramework($json->require);
                 $this->assertRequireInSync($json);
+                $this->assertNoVersionSpecified($json);
                 break;
             case 'magento2-theme':
                 $this->assertRegExp('/^magento\/theme-(?:adminhtml|frontend)(\-[a-z0-9_]+)+$/', $json->name);
                 $this->assertDependsOnPhp($json->require);
                 $this->assertPhpVersionInSync($json->name, $json->require->php);
                 $this->assertDependsOnFramework($json->require);
                 $this->assertRequireInSync($json);
+                $this->assertNoVersionSpecified($json);
                 break;
             case 'magento2-library':
                 $this->assertDependsOnPhp($json->require);
                 $this->assertRegExp('/^magento\/framework*/', $json->name);
                 $this->assertPhpVersionInSync($json->name, $json->require->php);
                 $this->assertRequireInSync($json);
                 $this->assertAutoload($json);
+                $this->assertNoVersionSpecified($json);
                 break;
             case 'project':
                 $this->checkProject();
+                $this->assertNoVersionSpecified($json);
                 break;
             default:
                 throw new \InvalidArgumentException("Unknown package type {$packageType}");
@@ -220,6 +225,19 @@ private function assertAutoloadRegistrar(\StdClass $json, $dir)
         $this->assertFileExists("$dir/registration.php");
     }
 
+    /**
+     * Version must not be specified in the root and package composer JSON files in Git.
+     *
+     * All versions are added by tools during release publication by version setter tool.
+     *
+     * @param \StdClass $json
+     */
+    private function assertNoVersionSpecified(\StdClass $json)
+    {
+        $errorMessage = 'Version must not be specified in the root and package composer JSON files in Git';
+        $this->assertObjectNotHasAttribute('version', $json, $errorMessage);
+    }
+
     /**
      * Assert that there is PSR-4 autoload in composer json
      *