react-native/ReactAndroid/src/androidTest/js/MeasureLayoutTestModule.js

/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @format
 */

'use strict';

const React = require('react');
const {StyleSheet, UIManager, View, findNodeHandle} = require('react-native');
const BatchedBridge = require('react-native/Libraries/BatchedBridge/BatchedBridge');

const assertEquals = require('./Asserts').assertEquals;

const styles = StyleSheet.create({
  A: {
    width: 500,
    height: 500,
  },
  B: {
    backgroundColor: 'rgb(255, 0, 0)',
    left: 50,
    top: 80,
    width: 200,
    height: 300,
  },
  C: {
    backgroundColor: 'rgb(0, 255, 0)',
    left: 100,
    top: 70,
    width: 50,
    height: 150,
  },
  D: {
    backgroundColor: 'rgb(0, 0, 255)',
    left: 400,
    top: 100,
    width: 50,
    height: 200,
  },
});

let A, B, C, D;

class MeasureLayoutTestApp extends React.Component {
  componentDidMount() {
    A = findNodeHandle(this.refs.A);
    B = findNodeHandle(this.refs.B);
    C = findNodeHandle(this.refs.C);
    D = findNodeHandle(this.refs.D);
  }

  render() {
    return (
      <View ref="A" style={styles.A} collapsable={false}>
        <View ref="B" style={styles.B} collapsable={false}>
          <View ref="C" style={styles.C} collapsable={false} />
        </View>
        <View ref="D" style={styles.D} collapsable={false} />
      </View>
    );
  }
}

function shouldNotCallThisCallback() {
  assertEquals(false, true);
}

const MeasureLayoutTestModule = {
  MeasureLayoutTestApp: MeasureLayoutTestApp,
  verifyMeasureOnViewA: function() {
    UIManager.measure(A, function(a, b, width, height, x, y) {
      assertEquals(500, width);
      assertEquals(500, height);
      assertEquals(0, x);
      assertEquals(0, y);
    });
  },
  verifyMeasureOnViewC: function() {
    UIManager.measure(C, function(a, b, width, height, x, y) {
      assertEquals(50, width);
      assertEquals(150, height);
      assertEquals(150, x);
      assertEquals(150, y);
    });
  },
  verifyMeasureLayoutCRelativeToA: function() {
    UIManager.measureLayout(C, A, shouldNotCallThisCallback, function(
      x,
      y,
      width,
      height,
    ) {
      assertEquals(50, width);
      assertEquals(150, height);
      assertEquals(150, x);
      assertEquals(150, y);
    });
  },
  verifyMeasureLayoutCRelativeToB: function() {
    UIManager.measureLayout(C, B, shouldNotCallThisCallback, function(
      x,
      y,
      width,
      height,
    ) {
      assertEquals(50, width);
      assertEquals(150, height);
      assertEquals(100, x);
      assertEquals(70, y);
    });
  },
  verifyMeasureLayoutCRelativeToSelf: function() {
    UIManager.measureLayout(C, C, shouldNotCallThisCallback, function(
      x,
      y,
      width,
      height,
    ) {
      assertEquals(50, width);
      assertEquals(150, height);
      assertEquals(0, x);
      assertEquals(0, y);
    });
  },
  verifyMeasureLayoutRelativeToParentOnViewA: function() {
    UIManager.measureLayoutRelativeToParent(
      A,
      shouldNotCallThisCallback,
      function(x, y, width, height) {
        assertEquals(500, width);
        assertEquals(500, height);
        assertEquals(0, x);
        assertEquals(0, y);
      },
    );
  },
  verifyMeasureLayoutRelativeToParentOnViewB: function() {
    UIManager.measureLayoutRelativeToParent(
      B,
      shouldNotCallThisCallback,
      function(x, y, width, height) {
        assertEquals(200, width);
        assertEquals(300, height);
        assertEquals(50, x);
        assertEquals(80, y);
      },
    );
  },
  verifyMeasureLayoutRelativeToParentOnViewC: function() {
    UIManager.measureLayoutRelativeToParent(
      C,
      shouldNotCallThisCallback,
      function(x, y, width, height) {
        assertEquals(50, width);
        assertEquals(150, height);
        assertEquals(100, x);
        assertEquals(70, y);
      },
    );
  },
  verifyMeasureLayoutDRelativeToB: function() {
    UIManager.measureLayout(
      D,
      B,
      function() {
        assertEquals(true, true);
      },
      shouldNotCallThisCallback,
    );
  },
  verifyMeasureLayoutNonExistentTag: function() {
    UIManager.measureLayout(
      192,
      A,
      function() {
        assertEquals(true, true);
      },
      shouldNotCallThisCallback,
    );
  },
  verifyMeasureLayoutNonExistentAncestor: function() {
    UIManager.measureLayout(
      B,
      192,
      function() {
        assertEquals(true, true);
      },
      shouldNotCallThisCallback,
    );
  },
  verifyMeasureLayoutRelativeToParentNonExistentTag: function() {
    UIManager.measureLayoutRelativeToParent(
      192,
      function() {
        assertEquals(true, true);
      },
      shouldNotCallThisCallback,
    );
  },
};

BatchedBridge.registerCallableModule(
  'MeasureLayoutTestModule',
  MeasureLayoutTestModule,
);

module.exports = MeasureLayoutTestModule;