diff --git a/scripts/fiber/tests-passing.txt b/scripts/fiber/tests-passing.txt
index 401449172b4..930fb89124d 100644
--- a/scripts/fiber/tests-passing.txt
+++ b/scripts/fiber/tests-passing.txt
@@ -2004,10 +2004,3 @@ src/shared/utils/__tests__/PooledClass-test.js
 
 src/shared/utils/__tests__/reactProdInvariant-test.js
 * should throw with the correct number of `%s`s in the URL
-
-src/test/__tests__/reactComponentExpect-test.js
-* should match composite components
-* should match empty DOM components
-* should match non-empty DOM components
-* should match DOM component children
-* should detect text components
diff --git a/scripts/rollup/packaging.js b/scripts/rollup/packaging.js
index d2d842ecbb9..7ec7b2e8a8c 100644
--- a/scripts/rollup/packaging.js
+++ b/scripts/rollup/packaging.js
@@ -19,7 +19,6 @@ const RN_PROD = Bundles.bundleTypes.RN_PROD;
 const facebookWWW = 'facebook-www';
 // these files need to be copied to the facebook-www build
 const facebookWWWSrcDependencies = [
-  'src/test/reactComponentExpect.js',
   'src/renderers/dom/shared/eventPlugins/TapEventPlugin.js',
 ];
 
diff --git a/src/test/__tests__/reactComponentExpect-test.js b/src/test/__tests__/reactComponentExpect-test.js
deleted file mode 100644
index f1e844a54fc..00000000000
--- a/src/test/__tests__/reactComponentExpect-test.js
+++ /dev/null
@@ -1,168 +0,0 @@
-/**
- * Copyright 2013-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- *
- * @emails react-core
- */
-
-'use strict';
-
-var React;
-var ReactTestUtils;
-var reactComponentExpect;
-
-describe('reactComponentExpect', () => {
-  beforeEach(() => {
-    React = require('react');
-    ReactTestUtils = require('ReactTestUtils');
-    reactComponentExpect = require('reactComponentExpect');
-  });
-
-  it('should match composite components', () => {
-    class SomeComponent extends React.Component {
-      state = {y: 2};
-      render() {
-        return <div className="Hello" />;
-      }
-    }
-
-    var component = ReactTestUtils.renderIntoDocument(<SomeComponent x={1} />);
-    reactComponentExpect(component)
-      .toBePresent()
-      .toBeCompositeComponent()
-      .toBeComponentOfType(SomeComponent)
-      .toBeCompositeComponentWithType(SomeComponent)
-      .scalarPropsEqual({x: 1})
-      .scalarStateEqual({y: 2});
-  });
-
-  it('should match empty DOM components', () => {
-    class SomeComponent extends React.Component {
-      render() {
-        return <div className="Hello" />;
-      }
-    }
-
-    var component = ReactTestUtils.renderIntoDocument(<SomeComponent />);
-    reactComponentExpect(component)
-      .expectRenderedChild()
-      .toBePresent()
-      .toBeDOMComponent()
-      .toBeDOMComponentWithNoChildren()
-      .toBeComponentOfType('div');
-  });
-
-  it('should match non-empty DOM components', () => {
-    class SomeComponent extends React.Component {
-      render() {
-        return (
-          <div className="Hello">
-            <p>1</p>
-            <p>2</p>
-          </div>
-        );
-      }
-    }
-
-    var component = ReactTestUtils.renderIntoDocument(<SomeComponent />);
-    reactComponentExpect(component)
-      .expectRenderedChild()
-      .toBePresent()
-      .toBeDOMComponent()
-      .toBeDOMComponentWithChildCount(2)
-      .toBeComponentOfType('div');
-  });
-
-  it('should match DOM component children', () => {
-    class Inner extends React.Component {
-      render() {
-        return <section />;
-      }
-    }
-
-    class Noop extends React.Component {
-      render() {
-        return null;
-      }
-    }
-
-    class SomeComponent extends React.Component {
-      render() {
-        return (
-          <div className="Hello">
-            <p>1</p>
-            <Inner foo="bar" />
-            <span>{'Two'}{3}</span>
-            <Noop />
-          </div>
-        );
-      }
-    }
-
-    var component = ReactTestUtils.renderIntoDocument(<SomeComponent />);
-    reactComponentExpect(component)
-      .expectRenderedChild()
-      .expectRenderedChildAt(0)
-      .toBePresent()
-      .toBeDOMComponent()
-      .toBeDOMComponentWithNoChildren()
-      .toBeComponentOfType('p');
-
-    reactComponentExpect(component)
-      .expectRenderedChild()
-      .expectRenderedChildAt(1)
-      .toBePresent()
-      .toBeCompositeComponentWithType(Inner)
-      .scalarPropsEqual({foo: 'bar'})
-      .expectRenderedChild()
-      .toBeComponentOfType('section')
-      .toBeDOMComponentWithNoChildren();
-
-    reactComponentExpect(component)
-      .expectRenderedChild()
-      .expectRenderedChildAt(2)
-      .toBePresent()
-      .toBeDOMComponent()
-      .toBeComponentOfType('span')
-      .toBeDOMComponentWithChildCount(2)
-      .expectRenderedChildAt(0)
-      .toBeTextComponentWithValue('Two');
-
-    reactComponentExpect(component)
-      .expectRenderedChild()
-      .expectRenderedChildAt(2)
-      .expectRenderedChildAt(1)
-      .toBeTextComponentWithValue('3');
-
-    reactComponentExpect(component)
-      .expectRenderedChild()
-      .expectRenderedChildAt(3)
-      .toBePresent()
-      .toBeCompositeComponentWithType(Noop)
-      .expectRenderedChild()
-      .toBeEmptyComponent();
-  });
-
-  it('should detect text components', () => {
-    class SomeComponent extends React.Component {
-      render() {
-        return (
-          <div>
-            <div>This is a div</div>
-            {'This is text'}
-          </div>
-        );
-      }
-    }
-
-    var component = ReactTestUtils.renderIntoDocument(<SomeComponent />);
-    reactComponentExpect(component)
-      .expectRenderedChild()
-      .expectRenderedChildAt(1)
-      .toBeTextComponentWithValue('This is text');
-  });
-});
diff --git a/src/test/reactComponentExpect.js b/src/test/reactComponentExpect.js
deleted file mode 100644
index a88c7d3427a..00000000000
--- a/src/test/reactComponentExpect.js
+++ /dev/null
@@ -1,295 +0,0 @@
-/**
- * Copyright 2013-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- *
- * @providesModule reactComponentExpect
- */
-
-'use strict';
-
-var ReactInstanceMap = require('ReactInstanceMap');
-var ReactTestUtils = require('ReactTestUtils');
-
-var HostText = 6; // ReactTypeOfWork
-
-var invariant = require('fbjs/lib/invariant');
-
-// Fiber doesn't actually have an instance for empty components
-// but we'll pretend it does while we keep compatibility with Stack.
-var fiberNullInstance = {
-  type: null,
-  child: null,
-  sibling: null,
-  tag: 99,
-};
-
-function reactComponentExpect(instance) {
-  if (instance instanceof reactComponentExpectInternal) {
-    return instance;
-  }
-
-  if (!(this instanceof reactComponentExpect)) {
-    return new reactComponentExpect(instance);
-  }
-
-  expect(instance).not.toBeNull();
-  expect(instance).not.toBeUndefined();
-
-  invariant(
-    ReactTestUtils.isCompositeComponent(instance),
-    'reactComponentExpect(...): instance must be a composite component',
-  );
-  var internalInstance = ReactInstanceMap.get(instance);
-
-  expect(typeof internalInstance).toBe('object');
-  expect(typeof internalInstance.constructor).toBe('function');
-  expect(ReactTestUtils.isElement(internalInstance)).toBe(false);
-
-  return new reactComponentExpectInternal(internalInstance);
-}
-
-function reactComponentExpectInternal(internalInstance) {
-  this._instance = internalInstance;
-}
-
-Object.assign(reactComponentExpectInternal.prototype, {
-  // Getters -------------------------------------------------------------------
-
-  /**
-   * @instance: Retrieves the backing instance.
-   */
-  instance: function() {
-    if (typeof this._instance.tag === 'number') {
-      // Fiber reconciler
-      return this._instance.stateNode;
-    } else {
-      // Stack reconciler
-      return this._instance.getPublicInstance();
-    }
-  },
-
-  /**
-   * There are two types of components in the world.
-   * - A component created via React.createClass() - Has a single child
-   *   subComponent - the return value from the .render() function. This
-   *   function @subComponent expects that this._instance is component created
-   *   with React.createClass().
-   * - A primitive DOM component - which has many renderedChildren, each of
-   *   which may have a name that is unique with respect to its siblings. This
-   *   method will fail if this._instance is a primitive component.
-   *
-   * TL;DR: An instance may have a subComponent (this._renderedComponent) or
-   * renderedChildren, but never both. Neither will actually show up until you
-   * render the component (simply instantiating is not enough).
-   */
-  expectRenderedChild: function() {
-    this.toBeCompositeComponent();
-    var child = null;
-    if (typeof this._instance.tag === 'number') {
-      // Fiber reconciler
-      child = this._instance.child || fiberNullInstance;
-    } else {
-      // Stack reconciler
-      child = this._instance._renderedComponent;
-    }
-    // TODO: Hide ReactEmptyComponent instances here?
-    return new reactComponentExpectInternal(child);
-  },
-
-  /**
-   * The nth child of a DOMish component instance that is not falsy.
-   */
-  expectRenderedChildAt: function(childIndex) {
-    // Currently only dom components have arrays of children, but that will
-    // change soon.
-    this.toBeDOMComponent();
-
-    if (typeof this._instance.tag === 'number') {
-      // Fiber reconciler
-      var child = this._instance.child;
-      var i = 0;
-      while (child) {
-        if (i === childIndex) {
-          return new reactComponentExpectInternal(child);
-        }
-        child = child.sibling;
-        i++;
-      }
-    } else {
-      // Stack reconciler
-      var renderedChildren = this._instance._renderedChildren || {};
-      for (var name in renderedChildren) {
-        if (!renderedChildren.hasOwnProperty(name)) {
-          continue;
-        }
-        if (renderedChildren[name]) {
-          if (renderedChildren[name]._mountIndex === childIndex) {
-            return new reactComponentExpectInternal(renderedChildren[name]);
-          }
-        }
-      }
-    }
-    throw new Error('Child:' + childIndex + ' is not found');
-  },
-
-  toBeDOMComponentWithChildCount: function(count) {
-    this.toBeDOMComponent();
-    if (typeof this._instance.tag === 'number') {
-      // Fiber reconciler
-      var child = this._instance.child;
-      var i = 0;
-      while (child) {
-        child = child.sibling;
-        i++;
-      }
-      expect(i).toBe(count);
-    } else {
-      // Stack reconciler
-      var renderedChildren = this._instance._renderedChildren;
-      if (count > 0) {
-        expect(renderedChildren).toBeTruthy();
-        expect(Object.keys(renderedChildren).length).toBe(count);
-      } else if (renderedChildren) {
-        expect(Object.keys(renderedChildren).length).toBe(0);
-      }
-    }
-    return this;
-  },
-
-  toBeDOMComponentWithNoChildren: function() {
-    this.toBeDOMComponentWithChildCount(0);
-    return this;
-  },
-
-  // Matchers ------------------------------------------------------------------
-
-  toBeComponentOfType: function(constructor) {
-    if (typeof this._instance.tag === 'number') {
-      // Fiber reconciler
-      expect(this._instance.type === constructor).toBe(true);
-    } else {
-      // Stack reconciler
-      expect(this._instance._currentElement.type === constructor).toBe(true);
-    }
-    return this;
-  },
-
-  /**
-   * A component that is created with React.createClass. Just duck typing
-   * here.
-   */
-  toBeCompositeComponent: function() {
-    // TODO: this code predates functional components
-    // and doesn't work with them.
-    expect(
-      typeof this.instance() === 'object' &&
-        typeof this.instance().render === 'function',
-    ).toBe(true);
-    return this;
-  },
-
-  toBeCompositeComponentWithType: function(constructor) {
-    this.toBeCompositeComponent();
-    this.toBeComponentOfType(constructor);
-    return this;
-  },
-
-  toBeTextComponentWithValue: function(val) {
-    if (typeof this._instance.tag === 'number') {
-      // Fiber reconciler
-      expect(this._instance.tag === HostText).toBe(true);
-      var actualVal = this._instance.memoizedProps;
-      expect(
-        typeof actualVal === 'string' || typeof actualVal === 'number',
-      ).toBe(true);
-      expect('' + actualVal).toBe(val);
-    } else {
-      // Fiber reconciler
-      var elementType = typeof this._instance._currentElement;
-      expect(elementType === 'string' || elementType === 'number').toBe(true);
-      expect(this._instance._stringText).toBe(val);
-    }
-    return this;
-  },
-
-  toBeEmptyComponent: function() {
-    if (typeof this._instance.tag === 'number') {
-      // Fiber reconciler
-      expect(this._instance).toBe(fiberNullInstance);
-    } else {
-      // Stack reconciler
-      var element = this._instance._currentElement;
-      expect(element === null || element === false).toBe(true);
-    }
-  },
-
-  toBePresent: function() {
-    expect(this.instance()).toBeTruthy();
-    return this;
-  },
-
-  /**
-   * A terminal type of component representing some virtual dom node. Just duck
-   * typing here.
-   */
-  toBeDOMComponent: function() {
-    expect(ReactTestUtils.isDOMComponent(this.instance())).toBe(true);
-    return this;
-  },
-
-  /**
-   * Check that internal state values are equal to a state of expected values.
-   */
-  scalarStateEqual: function(stateNameToExpectedValue) {
-    expect(this.instance()).toBeTruthy();
-    for (var stateName in stateNameToExpectedValue) {
-      if (!stateNameToExpectedValue.hasOwnProperty(stateName)) {
-        continue;
-      }
-      expect(this.instance().state[stateName]).toEqual(
-        stateNameToExpectedValue[stateName],
-      );
-    }
-    return this;
-  },
-
-  /**
-   * Check a set of props are equal to a set of expected values - only works
-   * with scalars.
-   */
-  scalarPropsEqual: function(propNameToExpectedValue) {
-    expect(this.instance()).toBeTruthy();
-    for (var propName in propNameToExpectedValue) {
-      if (!propNameToExpectedValue.hasOwnProperty(propName)) {
-        continue;
-      }
-      expect(this.instance().props[propName]).toEqual(
-        propNameToExpectedValue[propName],
-      );
-    }
-    return this;
-  },
-
-  /**
-   * Check a set of props are equal to a set of expected values - only works
-   * with scalars.
-   */
-  scalarContextEqual: function(contextNameToExpectedValue) {
-    expect(this.instance()).toBeTruthy();
-    for (var contextName in contextNameToExpectedValue) {
-      if (!contextNameToExpectedValue.hasOwnProperty(contextName)) {
-        continue;
-      }
-      expect(this.instance().context[contextName]).toEqual(
-        contextNameToExpectedValue[contextName],
-      );
-    }
-    return this;
-  },
-});
-
-module.exports = reactComponentExpect;