diff --git a/composer.json b/composer.json
index dc1df6843c23..569543381c77 100644
--- a/composer.json
+++ b/composer.json
@@ -130,7 +130,8 @@
             "Rector\\VendorLocker\\": "packages/vendor-locker/src",
             "Rector\\Performance\\": "rules/performance/src",
             "Rector\\Naming\\": "rules/naming/src",
-            "Rector\\Order\\": "rules/order/src"
+            "Rector\\Order\\": "rules/order/src",
+            "Rector\\MockistaToMockery\\": "rules/mockista-to-mockery/src"
         }
     },
     "autoload-dev": {
@@ -199,7 +200,8 @@
             "Rector\\Utils\\PHPStanStaticTypeMapperChecker\\": "utils/phpstan-static-type-mapper-checker/src",
             "Rector\\Performance\\Tests\\": "rules/performance/tests",
             "Rector\\Naming\\Tests\\": "rules/naming/tests",
-            "Rector\\Order\\Tests\\": "rules/order/tests"
+            "Rector\\Order\\Tests\\": "rules/order/tests",
+            "Rector\\MockistaToMockery\\Tests\\": "rules/mockista-to-mockery/tests"
         },
         "classmap": [
             "rules/cakephp/tests/Rector/Name/ImplicitShortClassNameUseStatementRector/Source",
diff --git a/config/set/framework-migration/mockista-to-mockery.yaml b/config/set/framework-migration/mockista-to-mockery.yaml
new file mode 100644
index 000000000000..b6c2c1185cc4
--- /dev/null
+++ b/config/set/framework-migration/mockista-to-mockery.yaml
@@ -0,0 +1,3 @@
+services:
+    Rector\MockistaToMockery\Rector\Class_\MockeryTearDownRector: null
+    Rector\MockistaToMockery\Rector\ClassMethod\MockistaMockToMockeryMockRector: null
diff --git a/docs/rector_rules_overview.md b/docs/rector_rules_overview.md
index a88100931e01..2a12150b3d82 100644
--- a/docs/rector_rules_overview.md
+++ b/docs/rector_rules_overview.md
@@ -1,4 +1,4 @@
-# All 483 Rectors Overview
+# All 485 Rectors Overview
 
 - [Projects](#projects)
 - [General](#general)
@@ -22,6 +22,7 @@
 - [JMS](#jms) (2)
 - [Laravel](#laravel) (6)
 - [Legacy](#legacy) (2)
+- [MockistaToMockery](#mockistatomockery) (2)
 - [MysqlToMysqli](#mysqltomysqli) (4)
 - [Naming](#naming) (1)
 - [Nette](#nette) (11)
@@ -4129,6 +4130,56 @@ Change functions to static calls, so composer can autoload them
 
 <br>
 
+## MockistaToMockery
+
+### `MockeryTearDownRector`
+
+- class: [`Rector\MockistaToMockery\Rector\Class_\MockeryTearDownRector`](/../master/rules/mockista-to-mockery/src/Rector/Class_/MockeryTearDownRector.php)
+- [test fixtures](/../master/rules/mockista-to-mockery/tests/Rector/Class_/MockeryTearDownRector/Fixture)
+
+Add Mockery::close() in tearDown() method if not yet
+
+```diff
+ use PHPUnit\Framework\TestCase;
+
+ class SomeTest extends TestCase
+ {
++    protected function tearDown(): void
++    {
++        Mockery::close();
++    }
+     public function test()
+     {
+         $mockUser = mock(User::class);
+     }
+ }
+```
+
+<br>
+
+### `MockistaMockToMockeryMockRector`
+
+- class: [`Rector\MockistaToMockery\Rector\ClassMethod\MockistaMockToMockeryMockRector`](/../master/rules/mockista-to-mockery/src/Rector/ClassMethod/MockistaMockToMockeryMockRector.php)
+- [test fixtures](/../master/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture)
+
+Change functions to static calls, so composer can autoload them
+
+```diff
+ class SomeTest
+ {
+     public function run()
+     {
+-        $mockUser = mock(User::class);
+-        $mockUser->getId()->once->andReturn(1);
+-        $mockUser->freeze();
++        $mockUser = Mockery::mock(User::class);
++        $mockUser->expects()->getId()->once()->andReturn(1);
+     }
+ }
+```
+
+<br>
+
 ## MysqlToMysqli
 
 ### `MysqlAssignToMysqliRector`
diff --git a/packages/node-name-resolver/src/NodeNameResolver.php b/packages/node-name-resolver/src/NodeNameResolver.php
index a7dc04171ad5..97f7fb67c5b1 100644
--- a/packages/node-name-resolver/src/NodeNameResolver.php
+++ b/packages/node-name-resolver/src/NodeNameResolver.php
@@ -13,6 +13,7 @@
 use PhpParser\Node\Stmt\ClassLike;
 use PhpParser\Node\Stmt\Interface_;
 use PhpParser\Node\Stmt\Trait_;
+use Rector\Core\Contract\Rector\RectorInterface;
 use Rector\Core\Exception\ShouldNotHappenException;
 use Rector\Core\PhpParser\Printer\BetterStandardPrinter;
 use Rector\NodeNameResolver\Contract\NodeNameResolverInterface;
@@ -214,9 +215,11 @@ private function reportInvalidNodeForName(Node $node): void
         }
 
         $backtrace = debug_backtrace();
-        if (isset($backtrace[1])) {
-            $fileInfo = new SmartFileInfo($backtrace[1]['file']);
-            $fileAndLine = $fileInfo->getRelativeFilePathFromCwd() . ':' . $backtrace[1]['line'];
+        $rectorBacktrace = $this->matchRectorBacktraceCall($backtrace);
+
+        if ($rectorBacktrace) {
+            $fileInfo = new SmartFileInfo($rectorBacktrace['file']);
+            $fileAndLine = $fileInfo->getRelativeFilePathFromCwd() . ':' . $rectorBacktrace['line'];
 
             $message .= PHP_EOL . PHP_EOL;
             $message .= sprintf('Look at %s', $fileAndLine);
@@ -224,4 +227,22 @@ private function reportInvalidNodeForName(Node $node): void
 
         throw new ShouldNotHappenException($message);
     }
+
+    private function matchRectorBacktraceCall(array $backtrace): ?array
+    {
+        foreach ($backtrace as $singleTrace) {
+            if (! isset($singleTrace['object'])) {
+                continue;
+            }
+
+            // match a Rector class
+            if (! is_a($singleTrace['object'], RectorInterface::class)) {
+                continue;
+            }
+
+            return $singleTrace;
+        }
+
+        return $backtrace[1] ?? null;
+    }
 }
diff --git a/rules/mockista-to-mockery/config/config.yaml b/rules/mockista-to-mockery/config/config.yaml
new file mode 100644
index 000000000000..5d175f868de3
--- /dev/null
+++ b/rules/mockista-to-mockery/config/config.yaml
@@ -0,0 +1,9 @@
+services:
+    _defaults:
+        public: true
+        autowire: true
+
+    Rector\MockistaToMockery\:
+        resource: '../src'
+        exclude:
+            - '../src/Rector/**/*Rector.php'
diff --git a/rules/mockista-to-mockery/src/MockistaDetector.php b/rules/mockista-to-mockery/src/MockistaDetector.php
new file mode 100644
index 000000000000..5d8bd41d1c48
--- /dev/null
+++ b/rules/mockista-to-mockery/src/MockistaDetector.php
@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\MockistaToMockery;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr\FuncCall;
+use PhpParser\Node\Stmt\Class_;
+use Rector\Core\PhpParser\Node\BetterNodeFinder;
+use Rector\NodeNameResolver\NodeNameResolver;
+
+final class MockistaDetector
+{
+    /**
+     * @var BetterNodeFinder
+     */
+    private $betterNodeFinder;
+
+    /**
+     * @var NodeNameResolver
+     */
+    private $nodeNameResolver;
+
+    public function __construct(BetterNodeFinder $betterNodeFinder, NodeNameResolver $nodeNameResolver)
+    {
+        $this->betterNodeFinder = $betterNodeFinder;
+        $this->nodeNameResolver = $nodeNameResolver;
+    }
+
+    public function isInClass(Class_ $class): bool
+    {
+        return (bool) $this->betterNodeFinder->findFirst((array) $class->stmts, function (Node $node) {
+            if (! $node instanceof FuncCall) {
+                return false;
+            }
+
+            return $this->nodeNameResolver->isName($node, 'mock');
+        });
+    }
+}
diff --git a/rules/mockista-to-mockery/src/Rector/ClassMethod/MockistaMockToMockeryMockRector.php b/rules/mockista-to-mockery/src/Rector/ClassMethod/MockistaMockToMockeryMockRector.php
new file mode 100644
index 000000000000..5398add89e9c
--- /dev/null
+++ b/rules/mockista-to-mockery/src/Rector/ClassMethod/MockistaMockToMockeryMockRector.php
@@ -0,0 +1,300 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\MockistaToMockery\Rector\ClassMethod;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr\Assign;
+use PhpParser\Node\Expr\FuncCall;
+use PhpParser\Node\Expr\MethodCall;
+use PhpParser\Node\Expr\PropertyFetch;
+use PhpParser\Node\Expr\Variable;
+use PhpParser\Node\Stmt\ClassMethod;
+use Rector\Core\Rector\AbstractPHPUnitRector;
+use Rector\Core\RectorDefinition\CodeSample;
+use Rector\Core\RectorDefinition\RectorDefinition;
+use Rector\NodeTypeResolver\Node\AttributeKey;
+use ReflectionMethod;
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\Method;
+
+/**
+ * @see \Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\MockistaMockToMockeryMockRectorTest
+ */
+final class MockistaMockToMockeryMockRector extends AbstractPHPUnitRector
+{
+    /**
+     * @var string[]
+     */
+    private const METHODS_TO_REMOVE = ['freeze', 'assertExpectations'];
+
+    /**
+     * @var string[]
+     */
+    private $mockVariableTypesByNames = [];
+
+    public function getDefinition(): RectorDefinition
+    {
+        return new RectorDefinition('Change functions to static calls, so composer can autoload them', [
+            new CodeSample(
+                <<<'PHP'
+class SomeTest
+{
+    public function run()
+    {
+        $mockUser = mock(User::class);
+        $mockUser->getId()->once->andReturn(1);
+        $mockUser->freeze();
+    }
+}
+PHP
+,
+                <<<'PHP'
+class SomeTest
+{
+    public function run()
+    {
+        $mockUser = Mockery::mock(User::class);
+        $mockUser->expects()->getId()->once()->andReturn(1);
+    }
+}
+PHP
+            ),
+        ]);
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getNodeTypes(): array
+    {
+        return [ClassMethod::class];
+    }
+
+    /**
+     * @param ClassMethod $node
+     */
+    public function refactor(Node $node): ?Node
+    {
+        if (! $this->isInTestClass($node)) {
+            return null;
+        }
+
+        $this->replaceMockWithMockerMockAndCollectMockVariableName($node);
+        $this->replaceMethodCallOncePropertyFetch($node);
+        $this->removeUnusedMethodCalls($node);
+        $this->replaceMethodCallWithExpects($node);
+
+        $this->switchWithAnyArgsAndOnceTwice($node);
+
+        return $node;
+    }
+
+    private function collectMockVariableName(FuncCall $funcCall): void
+    {
+        $parentNode = $funcCall->getAttribute(AttributeKey::PARENT_NODE);
+        if (! $parentNode instanceof Assign) {
+            return;
+        }
+
+        if (! $parentNode->var instanceof Variable) {
+            return;
+        }
+
+        /** @var Variable $variable */
+        $variable = $parentNode->var;
+
+        /** @var string $variableName */
+        $variableName = $this->getName($variable);
+
+        $type = $funcCall->args[0]->value;
+        $mockedType = $this->getValue($type);
+
+        $this->mockVariableTypesByNames[$variableName] = $mockedType;
+    }
+
+    private function isMethodCallOrPropertyFetchOnMockVariable(Node $node): bool
+    {
+        if (! $node instanceof MethodCall && ! $this->isPropertyFetchDisguisedAsMethodCall($node)) {
+            return false;
+        }
+
+        if (! $node->var instanceof Variable) {
+            return false;
+        }
+
+        /** @var string $variableName */
+        $variableName = $this->getName($node->var);
+
+        return isset($this->mockVariableTypesByNames[$variableName]);
+    }
+
+    private function replaceMockWithMockerMockAndCollectMockVariableName(ClassMethod $classMethod): void
+    {
+        $this->traverseNodesWithCallable((array) $classMethod->stmts, function (Node $node) {
+            if (! $this->isFuncCallName($node, 'mock')) {
+                return null;
+            }
+
+            /** @var FuncCall $node */
+            $this->collectMockVariableName($node);
+
+            return $this->createStaticCall('Mockery', 'mock', $node->args);
+        });
+    }
+
+    private function removeUnusedMethodCalls(ClassMethod $classMethod): void
+    {
+        $this->traverseNodesWithCallable((array) $classMethod->stmts, function (Node $node) {
+            if (! $this->isMethodCallOrPropertyFetchOnMockVariable($node)) {
+                return null;
+            }
+
+            if (! $this->isNames($node->name, self::METHODS_TO_REMOVE)) {
+                return null;
+            }
+
+            $this->removeNode($node);
+        });
+    }
+
+    /**
+     * $mock->getMethod()->once()
+     * ↓
+     * $mock->expects()->getMethod()->once()
+     */
+    private function replaceMethodCallWithExpects(ClassMethod $classMethod): void
+    {
+        $this->traverseNodesWithCallable((array) $classMethod->stmts, function (Node $node) {
+            if (! $this->isMethodCallOrPropertyFetchOnMockVariable($node)) {
+                return null;
+            }
+
+            // skip assigns
+            $parent = $node->getAttribute(AttributeKey::PARENT_NODE);
+            if ($parent instanceof Assign) {
+                return null;
+            }
+
+            /** @var MethodCall|PropertyFetch $node */
+            if ($this->isNames($node->name, self::METHODS_TO_REMOVE)) {
+                return null;
+            }
+
+            if ($this->isNames($node->name, ['expects', 'allows'])) {
+                return null;
+            }
+
+            // probably method mock
+            $expectedMethodCall = new MethodCall($node->var, 'expects');
+            $methodCall = new MethodCall($expectedMethodCall, $node->name);
+
+            if ($node instanceof PropertyFetch) {
+                return $methodCall;
+            }
+
+            $methodCall->args = $node->args;
+
+            return $this->decorateWithAnyArgs($node, $methodCall);
+        });
+    }
+
+    /**
+     * $mock->getMethod()->once
+     * ↓
+     * $mock->getMethod()->once()
+     */
+    private function replaceMethodCallOncePropertyFetch(ClassMethod $classMethod): void
+    {
+        $this->traverseNodesWithCallable((array) $classMethod->stmts, function (Node $node) {
+            if (! $node instanceof PropertyFetch) {
+                return null;
+            }
+
+            if (! $this->isNames($node->name, ['once', 'twice'])) {
+                return null;
+            }
+
+            return new MethodCall($node->var, $node->name);
+        });
+    }
+
+    private function isPropertyFetchDisguisedAsMethodCall(Node $node): bool
+    {
+        if (! $node instanceof PropertyFetch) {
+            return false;
+        }
+
+        if ($node->var instanceof MethodCall) {
+            return false;
+        }
+
+        $variableName = $this->getName($node->var);
+        if (! isset($this->mockVariableTypesByNames[$variableName])) {
+            return false;
+        }
+
+        $mockVariableType = $this->mockVariableTypesByNames[$variableName];
+        $propertyName = $this->getName($node->name);
+        if ($propertyName === null) {
+            return false;
+        }
+
+        return method_exists($mockVariableType, $propertyName);
+    }
+
+    /**
+     * $mock->someMethodWithArgs()->once()
+     * ↓
+     * $mock->expects()->someMethodWithArgs()->withAnyArgs()->once()
+     */
+    private function decorateWithAnyArgs(MethodCall $originalMethodCall, MethodCall $expectsMethodCall): MethodCall
+    {
+        $variableName = $this->getName($originalMethodCall->var);
+        $mockVariableType = $this->mockVariableTypesByNames[$variableName];
+
+        $methodName = $this->getName($originalMethodCall->name);
+        if ($methodName === null) {
+            return $expectsMethodCall;
+        }
+
+        if (! method_exists($mockVariableType, $methodName)) {
+            return $expectsMethodCall;
+        }
+
+        $methodReflection = new ReflectionMethod($mockVariableType, $methodName);
+        if ($methodReflection->getNumberOfRequiredParameters() === 0) {
+            return $expectsMethodCall;
+        }
+
+        return new MethodCall($expectsMethodCall, 'withAnyArgs');
+    }
+
+    /**
+     * Order correction for @see replaceMethodCallWithExpects()
+     */
+    private function switchWithAnyArgsAndOnceTwice(ClassMethod $classMethod): void
+    {
+        $this->traverseNodesWithCallable((array) $classMethod->stmts, function (Node $node) {
+            if (! $node instanceof MethodCall) {
+                return null;
+            }
+
+            if (! $this->isNames($node->name, ['once', 'twice'])) {
+                return;
+            }
+
+            if (! $node->var instanceof MethodCall) {
+                return null;
+            }
+
+            /** @var MethodCall $previousMethodCall */
+            $previousMethodCall = $node->var;
+            if (! $this->isName($previousMethodCall->name, 'withAnyArgs')) {
+                return null;
+            }
+
+            [$node->name, $previousMethodCall->name] = [$previousMethodCall->name, $node->name];
+        });
+    }
+}
diff --git a/rules/mockista-to-mockery/src/Rector/Class_/MockeryTearDownRector.php b/rules/mockista-to-mockery/src/Rector/Class_/MockeryTearDownRector.php
new file mode 100644
index 000000000000..b0f8b1fb7a61
--- /dev/null
+++ b/rules/mockista-to-mockery/src/Rector/Class_/MockeryTearDownRector.php
@@ -0,0 +1,130 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\MockistaToMockery\Rector\Class_;
+
+use PhpParser\Builder\Method;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Expr\StaticCall;
+use PhpParser\Node\Stmt;
+use PhpParser\Node\Stmt\Class_;
+use PhpParser\Node\Stmt\ClassMethod;
+use Rector\Core\Rector\AbstractRector;
+use Rector\Core\RectorDefinition\CodeSample;
+use Rector\Core\RectorDefinition\RectorDefinition;
+use Rector\MockistaToMockery\MockistaDetector;
+
+/**
+ * @see \Rector\MockistaToMockery\Tests\Rector\Class_\MockeryTearDownRector\MockeryTearDownRectorTest
+ */
+final class MockeryTearDownRector extends AbstractRector
+{
+    /**
+     * @var MockistaDetector
+     */
+    private $mockistaDetector;
+
+    public function __construct(MockistaDetector $mockistaDetector)
+    {
+        $this->mockistaDetector = $mockistaDetector;
+    }
+
+    public function getDefinition(): RectorDefinition
+    {
+        return new RectorDefinition('Add Mockery::close() in tearDown() method if not yet', [
+            new CodeSample(
+                <<<'PHP'
+use PHPUnit\Framework\TestCase;
+
+class SomeTest extends TestCase
+{
+    public function test()
+    {
+        $mockUser = mock(User::class);
+    }
+}
+PHP
+,
+                <<<'PHP'
+use PHPUnit\Framework\TestCase;
+
+class SomeTest extends TestCase
+{
+    protected function tearDown(): void
+    {
+        Mockery::close();
+    }
+    public function test()
+    {
+        $mockUser = mock(User::class);
+    }
+}
+PHP
+
+            ),
+        ]);
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getNodeTypes(): array
+    {
+        return [Class_::class];
+    }
+
+    /**
+     * @param Class_ $node
+     */
+    public function refactor(Node $node): ?Node
+    {
+        if (! $this->mockistaDetector->isInClass($node)) {
+            return null;
+        }
+
+        $tearDownClassMethod = $node->getMethod('tearDown');
+        if ($tearDownClassMethod === null) {
+            $node->stmts[] = $this->createTearDownMethodWithMockeryClose();
+        } elseif (! $this->containsMockeryClose($tearDownClassMethod)) {
+            $tearDownClassMethod->stmts[] = $this->createMockeryClose();
+        }
+
+        return $node;
+    }
+
+    private function createTearDownMethodWithMockeryClose(): ClassMethod
+    {
+        $tearDownClassMethodBuilder = new Method('tearDown');
+        $tearDownClassMethodBuilder->setReturnType('void');
+        $tearDownClassMethodBuilder->makeProtected();
+
+        $staticCall = $this->createMockeryClose();
+        $tearDownClassMethodBuilder->addStmt($staticCall);
+
+        return $tearDownClassMethodBuilder->getNode();
+    }
+
+    private function containsMockeryClose(ClassMethod $classMethod): bool
+    {
+        return (bool) $this->betterNodeFinder->findFirst((array) $classMethod->stmts, function (Node $node) {
+            if (! $node instanceof StaticCall) {
+                return false;
+            }
+
+            if (! $this->isName($node->class, 'Mockery')) {
+                return false;
+            }
+
+            return $this->isName($node->name, 'close');
+        });
+    }
+
+    private function createMockeryClose(): Stmt
+    {
+        $staticCall = $this->createStaticCall('Mockery', 'close');
+
+        return BuilderHelpers::normalizeStmt($staticCall);
+    }
+}
diff --git a/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/fixture.php.inc b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/fixture.php.inc
new file mode 100644
index 000000000000..c83ee0ee9f79
--- /dev/null
+++ b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/fixture.php.inc
@@ -0,0 +1,33 @@
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+class SomeTest extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = mock(User::class);
+        $mockUser->getId()->once->andReturn(1);
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+class SomeTest extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = \Mockery::mock(User::class);
+        $mockUser->expects()->getId()->once()->andReturn(1);
+    }
+}
+
+?>
diff --git a/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/method_args.php.inc b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/method_args.php.inc
new file mode 100644
index 000000000000..2b9fc656e16d
--- /dev/null
+++ b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/method_args.php.inc
@@ -0,0 +1,33 @@
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+class MethodArgs extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = mock(User::class);
+        $mockUser->getId(1);
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+class MethodArgs extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = \Mockery::mock(User::class);
+        $mockUser->expects()->getId(1);
+    }
+}
+
+?>
diff --git a/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/method_with_args_without_any.php.inc b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/method_with_args_without_any.php.inc
new file mode 100644
index 000000000000..a44308ba18b2
--- /dev/null
+++ b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/method_with_args_without_any.php.inc
@@ -0,0 +1,35 @@
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+use Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Source\User;
+
+class MethodWithArgsWithoutAny extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = mock(User::class);
+        $mockUser->methodWithArg()->once();
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+use Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Source\User;
+
+class MethodWithArgsWithoutAny extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = \Mockery::mock(User::class);
+        $mockUser->expects()->methodWithArg()->once()->withAnyArgs();
+    }
+}
+
+?>
diff --git a/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/methods_to_remove.php.inc b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/methods_to_remove.php.inc
new file mode 100644
index 000000000000..7096100d9e24
--- /dev/null
+++ b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/methods_to_remove.php.inc
@@ -0,0 +1,33 @@
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+class MethodsToRemove extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = mock(User::class);
+        $mockUser->freeze();
+        $mockUser->assertExpectations();
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+class MethodsToRemove extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = \Mockery::mock(User::class);
+    }
+}
+
+?>
diff --git a/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/property_or_method.php.inc b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/property_or_method.php.inc
new file mode 100644
index 000000000000..e0bb72a0cee3
--- /dev/null
+++ b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/property_or_method.php.inc
@@ -0,0 +1,35 @@
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+use Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Source\User;
+
+class PropertyOrMethod extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = mock(User::class);
+        $mockUser->insert->once;
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+use Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Source\User;
+
+class PropertyOrMethod extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = \Mockery::mock(User::class);
+        $mockUser->expects()->insert()->once();
+    }
+}
+
+?>
diff --git a/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/set_value.php.inc b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/set_value.php.inc
new file mode 100644
index 000000000000..e764b7b110e4
--- /dev/null
+++ b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/set_value.php.inc
@@ -0,0 +1,33 @@
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+class SetValue extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = mock(User::class);
+        $mockUser->id = 5;
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+class SetValue extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = \Mockery::mock(User::class);
+        $mockUser->id = 5;
+    }
+}
+
+?>
diff --git a/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/twice.php.inc b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/twice.php.inc
new file mode 100644
index 000000000000..59fa06d51e97
--- /dev/null
+++ b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/twice.php.inc
@@ -0,0 +1,35 @@
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+use Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Source\User;
+
+class Twice extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = mock(User::class);
+        $mockUser->insert->twice;
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+use Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Source\User;
+
+class Twice extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = \Mockery::mock(User::class);
+        $mockUser->expects()->insert()->twice();
+    }
+}
+
+?>
diff --git a/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/use_value.php.inc b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/use_value.php.inc
new file mode 100644
index 000000000000..92f5b230148b
--- /dev/null
+++ b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Fixture/use_value.php.inc
@@ -0,0 +1,37 @@
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+use Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Source\User;
+
+class UseValue extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = mock(User::class);
+        $mockUser->id = 5;
+        $mockUser->run($mockUser->id);
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+use Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Source\User;
+
+class UseValue extends TestCase
+{
+    public function testSomething()
+    {
+        $mockUser = \Mockery::mock(User::class);
+        $mockUser->id = 5;
+        $mockUser->expects()->run($mockUser->id);
+    }
+}
+
+?>
diff --git a/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/MockistaMockToMockeryMockRectorTest.php b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/MockistaMockToMockeryMockRectorTest.php
new file mode 100644
index 000000000000..f968653ac991
--- /dev/null
+++ b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/MockistaMockToMockeryMockRectorTest.php
@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector;
+
+use Iterator;
+use Rector\Core\Testing\PHPUnit\AbstractRectorTestCase;
+use Rector\MockistaToMockery\Rector\ClassMethod\MockistaMockToMockeryMockRector;
+
+final class MockistaMockToMockeryMockRectorTest extends AbstractRectorTestCase
+{
+    /**
+     * @dataProvider provideData()
+     */
+    public function test(string $file): void
+    {
+        $this->doTestFile($file);
+    }
+
+    public function provideData(): Iterator
+    {
+        return $this->yieldFilesFromDirectory(__DIR__ . '/Fixture');
+    }
+
+    protected function getRectorClass(): string
+    {
+        return MockistaMockToMockeryMockRector::class;
+    }
+}
diff --git a/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Source/User.php b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Source/User.php
new file mode 100644
index 000000000000..08031fd1c71d
--- /dev/null
+++ b/rules/mockista-to-mockery/tests/Rector/ClassMethod/MockistaMockToMockeryMockRector/Source/User.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\MockistaToMockery\Tests\Rector\ClassMethod\MockistaMockToMockeryMockRector\Source;
+
+final class User
+{
+    public function insert()
+    {
+    }
+
+    public function methodWithArg($values)
+    {
+    }
+}
diff --git a/rules/mockista-to-mockery/tests/Rector/Class_/MockeryTearDownRector/Fixture/add_to_existing_tear_down.php.inc b/rules/mockista-to-mockery/tests/Rector/Class_/MockeryTearDownRector/Fixture/add_to_existing_tear_down.php.inc
new file mode 100644
index 000000000000..2d90a1ad6c48
--- /dev/null
+++ b/rules/mockista-to-mockery/tests/Rector/Class_/MockeryTearDownRector/Fixture/add_to_existing_tear_down.php.inc
@@ -0,0 +1,40 @@
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\Class_\MockeryTearDownRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+class AddToExistingTearDownTest extends TestCase
+{
+    public function test()
+    {
+        $mockUser = mock(User::class);
+    }
+    protected function tearDown(): void
+    {
+        $value = 5;
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\Class_\MockeryTearDownRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+class AddToExistingTearDownTest extends TestCase
+{
+    public function test()
+    {
+        $mockUser = mock(User::class);
+    }
+    protected function tearDown(): void
+    {
+        $value = 5;
+        \Mockery::close();
+    }
+}
+
+?>
diff --git a/rules/mockista-to-mockery/tests/Rector/Class_/MockeryTearDownRector/Fixture/fixture.php.inc b/rules/mockista-to-mockery/tests/Rector/Class_/MockeryTearDownRector/Fixture/fixture.php.inc
new file mode 100644
index 000000000000..60b830da28ed
--- /dev/null
+++ b/rules/mockista-to-mockery/tests/Rector/Class_/MockeryTearDownRector/Fixture/fixture.php.inc
@@ -0,0 +1,35 @@
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\Class_\MockeryTearDownRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+class SomeTest extends TestCase
+{
+    public function test()
+    {
+        $mockUser = mock(User::class);
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\Class_\MockeryTearDownRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+class SomeTest extends TestCase
+{
+    public function test()
+    {
+        $mockUser = mock(User::class);
+    }
+    protected function tearDown(): void
+    {
+        \Mockery::close();
+    }
+}
+
+?>
diff --git a/rules/mockista-to-mockery/tests/Rector/Class_/MockeryTearDownRector/Fixture/skip_existing.php.inc b/rules/mockista-to-mockery/tests/Rector/Class_/MockeryTearDownRector/Fixture/skip_existing.php.inc
new file mode 100644
index 000000000000..7120307da8fc
--- /dev/null
+++ b/rules/mockista-to-mockery/tests/Rector/Class_/MockeryTearDownRector/Fixture/skip_existing.php.inc
@@ -0,0 +1,17 @@
+<?php
+
+namespace Rector\MockistaToMockery\Tests\Rector\Class_\MockeryTearDownRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+class SkipExisting extends TestCase
+{
+    public function test()
+    {
+        $mockUser = \mock(User::class);
+    }
+    protected function tearDown(): void
+    {
+        \Mockery::close();
+    }
+}
diff --git a/rules/mockista-to-mockery/tests/Rector/Class_/MockeryTearDownRector/MockeryTearDownRectorTest.php b/rules/mockista-to-mockery/tests/Rector/Class_/MockeryTearDownRector/MockeryTearDownRectorTest.php
new file mode 100644
index 000000000000..29490ba39005
--- /dev/null
+++ b/rules/mockista-to-mockery/tests/Rector/Class_/MockeryTearDownRector/MockeryTearDownRectorTest.php
@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\MockistaToMockery\Tests\Rector\Class_\MockeryTearDownRector;
+
+use Iterator;
+use Rector\Core\Testing\PHPUnit\AbstractRectorTestCase;
+use Rector\MockistaToMockery\Rector\Class_\MockeryTearDownRector;
+
+final class MockeryTearDownRectorTest extends AbstractRectorTestCase
+{
+    /**
+     * @dataProvider provideData()
+     */
+    public function test(string $file): void
+    {
+        $this->doTestFile($file);
+    }
+
+    public function provideData(): Iterator
+    {
+        return $this->yieldFilesFromDirectory(__DIR__ . '/Fixture');
+    }
+
+    protected function getRectorClass(): string
+    {
+        return MockeryTearDownRector::class;
+    }
+}
diff --git a/stubs/Mockista/DummyMock.php b/stubs/Mockista/DummyMock.php
new file mode 100644
index 000000000000..8ef2e1e228ba
--- /dev/null
+++ b/stubs/Mockista/DummyMock.php
@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Mockery;
+
+class DummyMock implements MockInterface
+{
+
+}
diff --git a/stubs/Mockista/MockInterface.php b/stubs/Mockista/MockInterface.php
new file mode 100644
index 000000000000..a1b09b3eea41
--- /dev/null
+++ b/stubs/Mockista/MockInterface.php
@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Mockery;
+
+if (class_exists('Mockery\MockerInterface')) {
+    return;
+}
+
+interface MockInterface
+{
+
+}
diff --git a/stubs/Mockista/mock_function.php b/stubs/Mockista/mock_function.php
new file mode 100644
index 000000000000..e2ea464302c2
--- /dev/null
+++ b/stubs/Mockista/mock_function.php
@@ -0,0 +1,10 @@
+<?php
+
+if (function_exists('mock')) {
+    return;
+}
+
+function mock(): \Mockery\MockInterface
+{
+    return new DummyMock();
+}