function BrowserTestBaseTest::testVarDump

Tests the dump() function provided by the var-dumper Symfony component.

File

core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php, line 615

Class

BrowserTestBaseTest

Tests BrowserTestBase functionality.

Namespace

Code

public function testVarDump() : void {
    // Append the stream capturer to the STDERR stream, so that we can test the
    // dump() output and also prevent it from actually outputting in this
    // particular test.
    stream_filter_register("capture", StreamCapturer::class);
    stream_filter_append(STDERR, "capture");
    // Dump some variables to check that dump() in test code produces output
    // on the command line that is running the test.
    $role = Role::load('authenticated');
    dump($role);
    dump($role->id());
    $this->assertStringContainsString('Drupal\\user\\Entity\\Role', StreamCapturer::$cache);
    $this->assertStringContainsString('authenticated', StreamCapturer::$cache);
    // Visit a Drupal page with call to the dump() function to check that dump()
    // in site code produces output in the requested web page's HTML.
    $body = $this->drupalGet('test-page-var-dump');
    $this->assertSession()
        ->statusCodeEquals(200);
    // It is too strict to assert all properties of the Role and it is easy to
    // break if one of these properties gets removed or gets a new default
    // value. It should be sufficient to test just a couple of properties.
    $this->assertStringContainsString('<span class=sf-dump-note>', $body);
    $this->assertStringContainsString('  #<span class=sf-dump-protected title="Protected property">id</span>: "<span class=sf-dump-str title="9 characters">test_role</span>"', $body);
    $this->assertStringContainsString('  #<span class=sf-dump-protected title="Protected property">label</span>: "<span class=sf-dump-str title="9 characters">Test role</span>"', $body);
    $this->assertStringContainsString('  #<span class=sf-dump-protected title="Protected property">permissions</span>: []', $body);
    $this->assertStringContainsString('  #<span class=sf-dump-protected title="Protected property">uuid</span>: "', $body);
    $this->assertStringContainsString('</samp>}', $body);
}