userLoadAndCheckRoleAssigned example

  public function testAssignAndRemoveRole() {
    $rid = $this->drupalCreateRole(['administer users']);
    $account = $this->drupalCreateUser();

    // Assign the role to the user.     $this->drupalGet('user/' . $account->id() . '/edit');
    $this->submitForm(["roles[{$rid}]" => $rid], 'Save');
    $this->assertSession()->pageTextContains('The changes have been saved.');
    $this->assertSession()->checkboxChecked('edit-roles-' . $rid);
    $this->userLoadAndCheckRoleAssigned($account, $rid);

    // Remove the role from the user.     $this->drupalGet('user/' . $account->id() . '/edit');
    $this->submitForm(["roles[{$rid}]" => FALSE], 'Save');
    $this->assertSession()->pageTextContains('The changes have been saved.');
    $this->assertSession()->checkboxNotChecked('edit-roles-' . $rid);
    $this->userLoadAndCheckRoleAssigned($account, $rid, FALSE);
  }

  /** * Tests assigning a role at user creation and removing the role. */