diff --git a/core/lib/Drupal/Component/Gettext/PoHeader.php b/core/lib/Drupal/Component/Gettext/PoHeader.php
index 3136f2e..48d8010 100644
--- a/core/lib/Drupal/Component/Gettext/PoHeader.php
+++ b/core/lib/Drupal/Component/Gettext/PoHeader.php
@@ -90,7 +90,7 @@ public function __construct($langcode = NULL) {
    *   Plural form component from the header, for example:
    *   'nplurals=2; plural=(n > 1);'.
    */
-  function getPluralForms() {
+  public function getPluralForms() {
     return $this->_pluralForms;
   }
 
@@ -100,7 +100,7 @@ function getPluralForms() {
    * @param string $languageName
    *   Human readable language name.
    */
-  function setLanguageName($languageName) {
+  public function setLanguageName($languageName) {
     $this->_languageName = $languageName;
   }
 
@@ -110,7 +110,7 @@ function setLanguageName($languageName) {
    * @return string
    *   The human readable language name.
    */
-  function getLanguageName() {
+  public function getLanguageName() {
     return $this->_languageName;
   }
 
@@ -120,7 +120,7 @@ function getLanguageName() {
    * @param string $projectName
    *   Human readable project name.
    */
-  function setProjectName($projectName) {
+  public function setProjectName($projectName) {
     $this->_projectName = $projectName;
   }
 
@@ -130,7 +130,7 @@ function setProjectName($projectName) {
    * @return string
    *   The human readable project name.
    */
-  function getProjectName() {
+  public function getProjectName() {
     return $this->_projectName;
   }
 
@@ -195,7 +195,7 @@ public function __toString() {
    *
    * @throws Exception
    */
-  function parsePluralForms($pluralforms) {
+  public function parsePluralForms($pluralforms) {
     $plurals = array();
     // First, delete all whitespace.
     $pluralforms = strtr($pluralforms, array(" " => "", "\t" => ""));
diff --git a/core/tests/Drupal/Tests/Component/Gettext/PoHeaderTest.php b/core/tests/Drupal/Tests/Component/Gettext/PoHeaderTest.php
index d3fb940..78201f9 100644
--- a/core/tests/Drupal/Tests/Component/Gettext/PoHeaderTest.php
+++ b/core/tests/Drupal/Tests/Component/Gettext/PoHeaderTest.php
@@ -13,9 +13,8 @@
 /**
  * Unit tests for the Gettext PO file header handling features.
  *
- * @see Drupal\Component\Gettext\PoHeader.
- *
- * @group Gettext
+ * @coversDefaultClass \Drupal\Component\Gettext\PoHeader
+ * @group gettext
  */
 class PoHeaderTest extends UnitTestCase {
 
@@ -31,6 +30,7 @@ class PoHeaderTest extends UnitTestCase {
    *   Array of expected plural positions keyed by plural value.
    *
    * @dataProvider providerTestPluralsFormula
+   * @covers ::parsePluralForms
    */
   public function testPluralsFormula($plural, $expected) {
     $p = new PoHeader();
@@ -372,4 +372,54 @@ public function providerTestPluralsFormula() {
     );
   }
 
+  /**
+   * @covers ::getPluralForms
+   * @covers ::parseHeader
+   * @covers ::setFromString
+   * @covers ::__toString
+   */
+  public function testSetFromString() {
+    $header = "Project-Id-Version: Drupal core (7.11)\n"
+      . "POT-Creation-Date: 2012-02-12 22:59+0000\n"
+      . "PO-Revision-Date: YYYY-mm-DD HH:MM+ZZZZ\n"
+      . "Language-Team: Catalan\n"
+      . "MIME-Version: 1.0\n"
+      . "Content-Type: text/plain; charset=utf-8\n"
+      . "Content-Transfer-Encoding: 8bit\n"
+      . "Plural-Forms: nplurals=2; plural=(n>1);\n";
+
+    $p = new PoHeader();
+    $p->setFromString($header);
+    $this->assertEquals('nplurals=2; plural=(n>1);', $p->getPluralForms());
+
+    $language = 'Spanish';
+    $project = 'Drupal core';
+    $p->setLanguageName($language);
+    $p->setProjectName($project);
+
+    $this->assertContains('Spanish translation of Drupal core', (string) $p);
+  }
+
+  /**
+   * @covers ::getLanguageName
+   * @covers ::setLanguageName
+   */
+  public function testGetSetLanguageName() {
+    $language = 'Spanish';
+    $p = new PoHeader();
+    $p->setLanguageName($language);
+    $this->assertEquals($language, $p->getLanguageName());
+  }
+
+  /**
+   * @covers ::getProjectName
+   * @covers ::setProjectName
+   */
+  public function testGetSetProjectName() {
+    $project = 'Drupal core';
+    $p = new PoHeader();
+    $p->setProjectName($project);
+    $this->assertEquals($project, $p->getProjectName());
+  }
+
 }