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diff --git a/web/core/modules/field/src/Tests/Number/NumberFieldTest.php b/web/core/modules/field/src/Tests/Number/NumberFieldTest.php
new file mode 100644
index 000000000..c69141050
--- /dev/null
+++ b/web/core/modules/field/src/Tests/Number/NumberFieldTest.php
@@ -0,0 +1,562 @@
+<?php
+
+namespace Drupal\field\Tests\Number;
+
+use Drupal\Component\Utility\Unicode;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\node\Entity\Node;
+use Drupal\simpletest\WebTestBase;
+use Drupal\field\Entity\FieldStorageConfig;
+
+/**
+ * Tests the creation of numeric fields.
+ *
+ * @group field
+ */
+class NumberFieldTest extends WebTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = ['node', 'entity_test', 'field_ui'];
+
+  protected function setUp() {
+    parent::setUp();
+    $this->drupalLogin($this->drupalCreateUser([
+      'view test entity',
+      'administer entity_test content',
+      'administer content types',
+      'administer node fields',
+      'administer node display',
+      'bypass node access',
+      'administer entity_test fields',
+    ]));
+  }
+
+  /**
+   * Test decimal field.
+   */
+  public function testNumberDecimalField() {
+    // Create a field with settings to validate.
+    $field_name = Unicode::strtolower($this->randomMachineName());
+    FieldStorageConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test',
+      'type' => 'decimal',
+      'settings' => [
+        'precision' => 8, 'scale' => 4,
+      ]
+    ])->save();
+    FieldConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test',
+      'bundle' => 'entity_test',
+    ])->save();
+
+    entity_get_form_display('entity_test', 'entity_test', 'default')
+      ->setComponent($field_name, [
+        'type' => 'number',
+        'settings' => [
+          'placeholder' => '0.00'
+        ],
+      ])
+      ->save();
+    entity_get_display('entity_test', 'entity_test', 'default')
+      ->setComponent($field_name, [
+        'type' => 'number_decimal',
+      ])
+      ->save();
+
+    // Display creation form.
+    $this->drupalGet('entity_test/add');
+    $this->assertFieldByName("{$field_name}[0][value]", '', 'Widget is displayed');
+    $this->assertRaw('placeholder="0.00"');
+
+    // Submit a signed decimal value within the allowed precision and scale.
+    $value = '-1234.5678';
+    $edit = [
+      "{$field_name}[0][value]" => $value,
+    ];
+    $this->drupalPostForm(NULL, $edit, t('Save'));
+    preg_match('|entity_test/manage/(\d+)|', $this->url, $match);
+    $id = $match[1];
+    $this->assertText(t('entity_test @id has been created.', ['@id' => $id]), 'Entity was created');
+    $this->assertRaw($value, 'Value is displayed.');
+
+    // Try to create entries with more than one decimal separator; assert fail.
+    $wrong_entries = [
+      '3.14.159',
+      '0..45469',
+      '..4589',
+      '6.459.52',
+      '6.3..25',
+    ];
+
+    foreach ($wrong_entries as $wrong_entry) {
+      $this->drupalGet('entity_test/add');
+      $edit = [
+        "{$field_name}[0][value]" => $wrong_entry,
+      ];
+      $this->drupalPostForm(NULL, $edit, t('Save'));
+      $this->assertRaw(t('%name must be a number.', ['%name' => $field_name]), 'Correctly failed to save decimal value with more than one decimal point.');
+    }
+
+    // Try to create entries with minus sign not in the first position.
+    $wrong_entries = [
+      '3-3',
+      '4-',
+      '1.3-',
+      '1.2-4',
+      '-10-10',
+    ];
+
+    foreach ($wrong_entries as $wrong_entry) {
+      $this->drupalGet('entity_test/add');
+      $edit = [
+        "{$field_name}[0][value]" => $wrong_entry,
+      ];
+      $this->drupalPostForm(NULL, $edit, t('Save'));
+      $this->assertRaw(t('%name must be a number.', ['%name' => $field_name]), 'Correctly failed to save decimal value with minus sign in the wrong position.');
+    }
+  }
+
+  /**
+   * Test integer field.
+   */
+  public function testNumberIntegerField() {
+    $minimum = rand(-4000, -2000);
+    $maximum = rand(2000, 4000);
+
+    // Create a field with settings to validate.
+    $field_name = Unicode::strtolower($this->randomMachineName());
+    $storage = FieldStorageConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test',
+      'type' => 'integer',
+    ]);
+    $storage->save();
+
+    FieldConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test',
+      'bundle' => 'entity_test',
+      'settings' => [
+        'min' => $minimum, 'max' => $maximum, 'prefix' => 'ThePrefix',
+      ]
+    ])->save();
+
+    entity_get_form_display('entity_test', 'entity_test', 'default')
+      ->setComponent($field_name, [
+        'type' => 'number',
+        'settings' => [
+          'placeholder' => '4'
+        ],
+      ])
+      ->save();
+    entity_get_display('entity_test', 'entity_test', 'default')
+      ->setComponent($field_name, [
+        'type' => 'number_integer',
+        'settings' => [
+          'prefix_suffix' => FALSE,
+        ],
+      ])
+      ->save();
+
+    // Check the storage schema.
+    $expected = [
+      'columns' => [
+        'value' => [
+          'type' => 'int',
+          'unsigned' => '',
+          'size' => 'normal'
+        ],
+      ],
+      'unique keys' => [],
+      'indexes' => [],
+      'foreign keys' => []
+    ];
+    $this->assertEqual($storage->getSchema(), $expected);
+
+    // Display creation form.
+    $this->drupalGet('entity_test/add');
+    $this->assertFieldByName("{$field_name}[0][value]", '', 'Widget is displayed');
+    $this->assertRaw('placeholder="4"');
+
+    // Submit a valid integer
+    $value = rand($minimum, $maximum);
+    $edit = [
+      "{$field_name}[0][value]" => $value,
+    ];
+    $this->drupalPostForm(NULL, $edit, t('Save'));
+    preg_match('|entity_test/manage/(\d+)|', $this->url, $match);
+    $id = $match[1];
+    $this->assertText(t('entity_test @id has been created.', ['@id' => $id]), 'Entity was created');
+
+    // Try to set a value below the minimum value
+    $this->drupalGet('entity_test/add');
+    $edit = [
+      "{$field_name}[0][value]" => $minimum - 1,
+    ];
+    $this->drupalPostForm(NULL, $edit, t('Save'));
+    $this->assertRaw(t('%name must be higher than or equal to %minimum.', ['%name' => $field_name, '%minimum' => $minimum]), 'Correctly failed to save integer value less than minimum allowed value.');
+
+    // Try to set a decimal value
+    $this->drupalGet('entity_test/add');
+    $edit = [
+      "{$field_name}[0][value]" => 1.5,
+    ];
+    $this->drupalPostForm(NULL, $edit, t('Save'));
+    $this->assertRaw(t('%name is not a valid number.', ['%name' => $field_name]), 'Correctly failed to save decimal value to integer field.');
+
+    // Try to set a value above the maximum value
+    $this->drupalGet('entity_test/add');
+    $edit = [
+      "{$field_name}[0][value]" => $maximum + 1,
+    ];
+    $this->drupalPostForm(NULL, $edit, t('Save'));
+    $this->assertRaw(t('%name must be lower than or equal to %maximum.', ['%name' => $field_name, '%maximum' => $maximum]), 'Correctly failed to save integer value greater than maximum allowed value.');
+
+    // Try to set a wrong integer value.
+    $this->drupalGet('entity_test/add');
+    $edit = [
+      "{$field_name}[0][value]" => '20-40',
+    ];
+    $this->drupalPostForm(NULL, $edit, t('Save'));
+    $this->assertRaw(t('%name must be a number.', ['%name' => $field_name]), 'Correctly failed to save wrong integer value.');
+
+    // Test with valid entries.
+    $valid_entries = [
+      '-1234',
+      '0',
+      '1234',
+    ];
+
+    foreach ($valid_entries as $valid_entry) {
+      $this->drupalGet('entity_test/add');
+      $edit = [
+        "{$field_name}[0][value]" => $valid_entry,
+      ];
+      $this->drupalPostForm(NULL, $edit, t('Save'));
+      preg_match('|entity_test/manage/(\d+)|', $this->url, $match);
+      $id = $match[1];
+      $this->assertText(t('entity_test @id has been created.', ['@id' => $id]), 'Entity was created');
+      $this->assertRaw($valid_entry, 'Value is displayed.');
+      $this->assertNoFieldByXpath('//div[@content="' . $valid_entry . '"]', NULL, 'The "content" attribute is not present since the Prefix is not being displayed');
+    }
+
+    // Test for the content attribute when a Prefix is displayed. Presumably this also tests for the attribute when a Suffix is displayed.
+    entity_get_display('entity_test', 'entity_test', 'default')
+      ->setComponent($field_name, [
+        'type' => 'number_integer',
+        'settings' => [
+          'prefix_suffix' => TRUE,
+        ],
+      ])
+      ->save();
+    $integer_value = '123';
+    $this->drupalGet('entity_test/add');
+    $edit = [
+      "{$field_name}[0][value]" => $integer_value,
+    ];
+    $this->drupalPostForm(NULL, $edit, t('Save'));
+    preg_match('|entity_test/manage/(\d+)|', $this->url, $match);
+    $id = $match[1];
+    $this->assertText(t('entity_test @id has been created.', ['@id' => $id]), 'Entity was created');
+    $this->drupalGet('entity_test/' . $id);
+    $this->assertFieldByXPath('//div[@content="' . $integer_value . '"]', 'ThePrefix' . $integer_value, 'The "content" attribute has been set to the value of the field, and the prefix is being displayed.');
+  }
+
+  /**
+  * Test float field.
+  */
+  public function testNumberFloatField() {
+    // Create a field with settings to validate.
+    $field_name = Unicode::strtolower($this->randomMachineName());
+    FieldStorageConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test',
+      'type' => 'float',
+    ])->save();
+
+    FieldConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test',
+      'bundle' => 'entity_test',
+    ])->save();
+
+    entity_get_form_display('entity_test', 'entity_test', 'default')
+      ->setComponent($field_name, [
+        'type' => 'number',
+        'settings' => [
+          'placeholder' => '0.00'
+        ],
+      ])
+      ->save();
+
+    entity_get_display('entity_test', 'entity_test', 'default')
+      ->setComponent($field_name, [
+        'type' => 'number_decimal',
+      ])
+      ->save();
+
+    // Display creation form.
+    $this->drupalGet('entity_test/add');
+    $this->assertFieldByName("{$field_name}[0][value]", '', 'Widget is displayed');
+    $this->assertRaw('placeholder="0.00"');
+
+    // Submit a signed decimal value within the allowed precision and scale.
+    $value = '-1234.5678';
+    $edit = [
+      "{$field_name}[0][value]" => $value,
+    ];
+    $this->drupalPostForm(NULL, $edit, t('Save'));
+    preg_match('|entity_test/manage/(\d+)|', $this->url, $match);
+    $id = $match[1];
+    $this->assertText(t('entity_test @id has been created.', ['@id' => $id]), 'Entity was created');
+
+    // Ensure that the 'number_decimal' formatter displays the number with the
+    // expected rounding.
+    $this->drupalGet('entity_test/' . $id);
+    $this->assertRaw(round($value, 2));
+
+    // Try to create entries with more than one decimal separator; assert fail.
+    $wrong_entries = [
+      '3.14.159',
+      '0..45469',
+      '..4589',
+      '6.459.52',
+      '6.3..25',
+    ];
+
+    foreach ($wrong_entries as $wrong_entry) {
+      $this->drupalGet('entity_test/add');
+      $edit = [
+        "{$field_name}[0][value]" => $wrong_entry,
+      ];
+      $this->drupalPostForm(NULL, $edit, t('Save'));
+      $this->assertRaw(t('%name must be a number.', ['%name' => $field_name]), 'Correctly failed to save float value with more than one decimal point.');
+    }
+
+    // Try to create entries with minus sign not in the first position.
+    $wrong_entries = [
+      '3-3',
+      '4-',
+      '1.3-',
+      '1.2-4',
+      '-10-10',
+    ];
+
+    foreach ($wrong_entries as $wrong_entry) {
+      $this->drupalGet('entity_test/add');
+      $edit = [
+        "{$field_name}[0][value]" => $wrong_entry,
+      ];
+      $this->drupalPostForm(NULL, $edit, t('Save'));
+      $this->assertRaw(t('%name must be a number.', ['%name' => $field_name]), 'Correctly failed to save float value with minus sign in the wrong position.');
+    }
+  }
+
+  /**
+   * Test default formatter behavior
+   */
+  public function testNumberFormatter() {
+    $type = Unicode::strtolower($this->randomMachineName());
+    $float_field = Unicode::strtolower($this->randomMachineName());
+    $integer_field = Unicode::strtolower($this->randomMachineName());
+    $thousand_separators = ['', '.', ',', ' ', chr(8201), "'"];
+    $decimal_separators = ['.', ','];
+    $prefix = $this->randomMachineName();
+    $suffix = $this->randomMachineName();
+    $random_float = rand(0, pow(10, 6));
+    $random_integer = rand(0, pow(10, 6));
+
+    // Create a content type containing float and integer fields.
+    $this->drupalCreateContentType(['type' => $type]);
+
+    FieldStorageConfig::create([
+      'field_name' => $float_field,
+      'entity_type' => 'node',
+      'type' => 'float',
+    ])->save();
+
+    FieldStorageConfig::create([
+      'field_name' => $integer_field,
+      'entity_type' => 'node',
+      'type' => 'integer',
+    ])->save();
+
+    FieldConfig::create([
+      'field_name' => $float_field,
+      'entity_type' => 'node',
+      'bundle' => $type,
+      'settings' => [
+        'prefix' => $prefix,
+        'suffix' => $suffix
+      ],
+    ])->save();
+
+    FieldConfig::create([
+      'field_name' => $integer_field,
+      'entity_type' => 'node',
+      'bundle' => $type,
+      'settings' => [
+        'prefix' => $prefix,
+        'suffix' => $suffix
+      ],
+    ])->save();
+
+    entity_get_form_display('node', $type, 'default')
+      ->setComponent($float_field, [
+        'type' => 'number',
+        'settings' => [
+          'placeholder' => '0.00'
+        ],
+      ])
+      ->setComponent($integer_field, [
+        'type' => 'number',
+        'settings' => [
+          'placeholder' => '0.00'
+        ],
+      ])
+      ->save();
+
+    entity_get_display('node', $type, 'default')
+      ->setComponent($float_field, [
+        'type' => 'number_decimal',
+      ])
+      ->setComponent($integer_field, [
+        'type' => 'number_unformatted',
+      ])
+      ->save();
+
+    // Create a node to test formatters.
+    $node = Node::create([
+      'type' => $type,
+      'title' => $this->randomMachineName(),
+      $float_field => ['value' => $random_float],
+      $integer_field => ['value' => $random_integer],
+    ]);
+    $node->save();
+
+    // Go to manage display page.
+    $this->drupalGet("admin/structure/types/manage/$type/display");
+
+    // Configure number_decimal formatter for the 'float' field type.
+    $thousand_separator = $thousand_separators[array_rand($thousand_separators)];
+    $decimal_separator = $decimal_separators[array_rand($decimal_separators)];
+    $scale = rand(0, 10);
+
+    $this->drupalPostAjaxForm(NULL, [], "${float_field}_settings_edit");
+    $edit = [
+      "fields[${float_field}][settings_edit_form][settings][prefix_suffix]" => TRUE,
+      "fields[${float_field}][settings_edit_form][settings][scale]" => $scale,
+      "fields[${float_field}][settings_edit_form][settings][decimal_separator]" => $decimal_separator,
+      "fields[${float_field}][settings_edit_form][settings][thousand_separator]" => $thousand_separator,
+    ];
+    $this->drupalPostAjaxForm(NULL, $edit, "${float_field}_plugin_settings_update");
+    $this->drupalPostForm(NULL, [], t('Save'));
+
+    // Check number_decimal and number_unformatted formatters behavior.
+    $this->drupalGet('node/' . $node->id());
+    $float_formatted = number_format($random_float, $scale, $decimal_separator, $thousand_separator);
+    $this->assertRaw("$prefix$float_formatted$suffix", 'Prefix and suffix added');
+    $this->assertRaw((string) $random_integer);
+
+    // Configure the number_decimal formatter.
+    entity_get_display('node', $type, 'default')
+      ->setComponent($integer_field, [
+        'type' => 'number_integer',
+      ])
+      ->save();
+    $this->drupalGet("admin/structure/types/manage/$type/display");
+
+    $thousand_separator = $thousand_separators[array_rand($thousand_separators)];
+
+    $this->drupalPostAjaxForm(NULL, [], "${integer_field}_settings_edit");
+    $edit = [
+      "fields[${integer_field}][settings_edit_form][settings][prefix_suffix]" => FALSE,
+      "fields[${integer_field}][settings_edit_form][settings][thousand_separator]" => $thousand_separator,
+    ];
+    $this->drupalPostAjaxForm(NULL, $edit, "${integer_field}_plugin_settings_update");
+    $this->drupalPostForm(NULL, [], t('Save'));
+
+    // Check number_integer formatter behavior.
+    $this->drupalGet('node/' . $node->id());
+
+    $integer_formatted = number_format($random_integer, 0, '', $thousand_separator);
+    $this->assertRaw($integer_formatted, 'Random integer formatted');
+  }
+
+  /**
+   * Tests setting the minimum value of a float field through the interface.
+   */
+  public function testCreateNumberFloatField() {
+    // Create a float field.
+    $field_name = Unicode::strtolower($this->randomMachineName());
+    FieldStorageConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test',
+      'type' => 'float',
+    ])->save();
+
+    $field = FieldConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test',
+      'bundle' => 'entity_test',
+    ]);
+    $field->save();
+
+    // Set the minimum value to a float value.
+    $this->assertSetMinimumValue($field, 0.0001);
+    // Set the minimum value to an integer value.
+    $this->assertSetMinimumValue($field, 1);
+  }
+
+  /**
+   * Tests setting the minimum value of a decimal field through the interface.
+   */
+  public function testCreateNumberDecimalField() {
+    // Create a decimal field.
+    $field_name = Unicode::strtolower($this->randomMachineName());
+    FieldStorageConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test',
+      'type' => 'decimal',
+    ])->save();
+
+    $field = FieldConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test',
+      'bundle' => 'entity_test',
+    ]);
+    $field->save();
+
+    // Set the minimum value to a decimal value.
+    $this->assertSetMinimumValue($field, 0.1);
+    // Set the minimum value to an integer value.
+    $this->assertSetMinimumValue($field, 1);
+  }
+
+  /**
+   * Helper function to set the minimum value of a field.
+   */
+  public function assertSetMinimumValue($field, $minimum_value) {
+    $field_configuration_url = 'entity_test/structure/entity_test/fields/entity_test.entity_test.' . $field->getName();
+
+    // Set the minimum value.
+    $edit = [
+      'settings[min]' => $minimum_value,
+    ];
+    $this->drupalPostForm($field_configuration_url, $edit, t('Save settings'));
+    // Check if an error message is shown.
+    $this->assertNoRaw(t('%name is not a valid number.', ['%name' => t('Minimum')]), 'Saved ' . gettype($minimum_value) . '  value as minimal value on a ' . $field->getType() . ' field');
+    // Check if a success message is shown.
+    $this->assertRaw(t('Saved %label configuration.', ['%label' => $field->getLabel()]));
+    // Check if the minimum value was actually set.
+    $this->drupalGet($field_configuration_url);
+    $this->assertFieldById('edit-settings-min', $minimum_value, 'Minimal ' . gettype($minimum_value) . '  value was set on a ' . $field->getType() . ' field.');
+  }
+
+}