blockly/tests/mocha/field_dropdown_test.js

/**
 * @license
 * Copyright 2019 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */

import {assert} from '../../node_modules/chai/chai.js';
import * as Blockly from '../../build/src/core/blockly.js';
import {
  assertFieldValue,
  runConstructorSuiteTests,
  runFromJsonSuiteTests,
  runSetValueTests,
} from './test_helpers/fields.js';
import {
  createTestBlock,
  defineRowBlock,
} from './test_helpers/block_definitions.js';
import {
  sharedTestSetup,
  sharedTestTeardown,
  workspaceTeardown,
} from './test_helpers/setup_teardown.js';

suite('Dropdown Fields', function () {
  setup(function () {
    sharedTestSetup.call(this);

    // Invalid value test are expected to log errors.
    const nativeConsoleError = console.error;
    this.nativeConsoleError = nativeConsoleError;
    console.error = function (msg) {
      if (!msg.includes('Each FieldDropdown option')) {
        nativeConsoleError.call(this, ...arguments);
      }
    };
  });
  teardown(function () {
    console.error = this.nativeConsoleError;
    sharedTestTeardown.call(this);
  });
  /**
   * Configuration for field tests with invalid values.
   * @type {!Array<!FieldCreationTestCase>}
   */
  const invalidValueCreationTestCases = [
    {title: 'Undefined', args: [undefined]},
    {title: 'Array Items not Arrays', args: [undefined]},
    {
      title: 'Array Items with Invalid IDs',
      args: [
        [
          ['1', 1],
          ['2', 2],
          ['3', 3],
        ],
      ],
    },
    {
      title: 'Array Items with Invalid Content',
      args: [
        [
          [1, '1'],
          [2, '2'],
          [3, '3'],
        ],
      ],
    },
  ];
  /**
   * Configuration for field tests with valid values.
   * @type {!Array<!FieldCreationTestCase>}
   */
  const validValueCreationTestCases = [
    {
      title: 'Text Dropdown',
      value: 'A',
      expectedValue: 'A',
      expectedText: 'a',
      args: [
        [
          ['a', 'A'],
          ['b', 'B'],
          ['c', 'C'],
        ],
      ],
    },
    {
      title: 'Image Dropdown',
      value: 'A',
      expectedValue: 'A',
      expectedText: 'a',
      args: [
        [
          [{src: 'scrA', alt: 'a'}, 'A'],
          [{src: 'scrB', alt: 'b'}, 'B'],
          [{src: 'scrC', alt: 'c'}, 'C'],
        ],
      ],
    },
    {
      title: 'Dynamic Text Dropdown',
      value: 'A',
      expectedValue: 'A',
      expectedText: 'a',
      args: [
        () => {
          return [
            ['a', 'A'],
            ['b', 'B'],
            ['c', 'C'],
          ];
        },
      ],
    },
    {
      title: 'Dynamic Image Dropdown',
      value: 'A',
      expectedValue: 'A',
      expectedText: 'a',
      args: [
        () => {
          return [
            [{src: 'scrA', alt: 'a'}, 'A'],
            [{src: 'scrB', alt: 'b'}, 'B'],
            [{src: 'scrC', alt: 'c'}, 'C'],
          ];
        },
      ],
    },
  ];
  const addJson = function (testCase) {
    testCase.json = {'options': testCase.args[0]};
  };
  invalidValueCreationTestCases.forEach(addJson);
  validValueCreationTestCases.forEach(addJson);

  /**
   * Asserts that the field properties are correct based on the test case.
   * @param {!Blockly.FieldDropdown} field The field to check.
   * @param {!FieldValueTestCase} testCase The test case.
   */
  const validTestCaseAssertField = function (field, testCase) {
    assertFieldValue(field, testCase.expectedValue, testCase.expectedText);
  };

  runConstructorSuiteTests(
    Blockly.FieldDropdown,
    validValueCreationTestCases,
    invalidValueCreationTestCases,
    validTestCaseAssertField,
  );

  runFromJsonSuiteTests(
    Blockly.FieldDropdown,
    validValueCreationTestCases,
    invalidValueCreationTestCases,
    validTestCaseAssertField,
  );

  /**
   * Configuration for field tests with invalid values.
   * @type {!Array<!FieldCreationTestCase>}
   */
  const invalidValueSetValueTestCases = [
    {title: 'Null', value: null},
    {title: 'Undefined', value: undefined},
    {title: 'Invalid ID', value: 'bad'},
  ];
  /**
   * Configuration for field tests with valid values.
   * @type {!Array<!FieldValueTestCase>}
   */
  const validValueSetValueTestCases = [
    {title: 'Valid ID', value: 'B', expectedValue: 'B', expectedText: 'b'},
  ];

  suite('setValue', function () {
    setup(function () {
      this.field = new Blockly.FieldDropdown([
        ['a', 'A'],
        ['b', 'B'],
        ['c', 'C'],
      ]);
    });
    runSetValueTests(
      validValueSetValueTestCases,
      invalidValueSetValueTestCases,
      'A',
      'a',
    );
    test('With source block', function () {
      this.field.setSourceBlock(createTestBlock());
      this.field.setValue('B');
      assertFieldValue(this.field, 'B', 'b');
    });
  });

  suite('Validators', function () {
    setup(function () {
      this.dropdownField = new Blockly.FieldDropdown([
        ['1a', '1A'],
        ['1b', '1B'],
        ['1c', '1C'],
        ['2a', '2A'],
        ['2b', '2B'],
        ['2c', '2C'],
      ]);
    });
    teardown(function () {
      this.dropdownField.setValidator(null);
    });
    suite('Null Validator', function () {
      setup(function () {
        this.dropdownField.setValidator(function () {
          return null;
        });
      });
      test('New Value', function () {
        this.dropdownField.setValue('1B');
        assertFieldValue(this.dropdownField, '1A', '1a');
      });
    });
    suite('Force 1s Validator', function () {
      setup(function () {
        this.dropdownField.setValidator(function (newValue) {
          return '1' + newValue.charAt(1);
        });
      });
      test('New Value', function () {
        this.dropdownField.setValue('2B');
        assertFieldValue(this.dropdownField, '1B', '1b');
      });
    });
    suite('Returns Undefined Validator', function () {
      setup(function () {
        this.dropdownField.setValidator(function () {});
      });
      test('New Value', function () {
        this.dropdownField.setValue('1B');
        assertFieldValue(this.dropdownField, '1B', '1b');
      });
    });
  });

  suite('Serialization', function () {
    setup(function () {
      this.workspace = new Blockly.Workspace();
      defineRowBlock();

      this.assertValue = (value, field) => {
        const block = this.workspace.newBlock('row_block');
        field.setValue(value);
        block.getInput('INPUT').appendField(field, 'DROPDOWN');
        const jso = Blockly.serialization.blocks.save(block);
        assert.deepEqual(jso['fields'], {'DROPDOWN': value});
      };
    });

    teardown(function () {
      workspaceTeardown.call(this, this.workspace);
    });

    test('Simple', function () {
      const field = new Blockly.FieldDropdown([
        ['apple', 'A'],
        ['ball', 'B'],
        ['carrot', 'C'],
      ]);
      this.assertValue('C', field);
    });

    test('Dynamic', function () {
      const field = new Blockly.FieldDropdown(() => [
        ['apple', 'A'],
        ['ball', 'B'],
        ['carrot', 'C'],
      ]);
      this.assertValue('C', field);
    });
  });
});