diff --git a/app/code/Magento/Sales/Model/Order/Address/Validator.php b/app/code/Magento/Sales/Model/Order/Address/Validator.php
index e6353f7f28899..e970cd66635f9 100644
--- a/app/code/Magento/Sales/Model/Order/Address/Validator.php
+++ b/app/code/Magento/Sales/Model/Order/Address/Validator.php
@@ -48,8 +48,8 @@ class Validator
 
     /**
      * @param DirectoryHelper $directoryHelper
-     * @param CountryFactory  $countryFactory
-     * @param EavConfig       $eavConfig
+     * @param CountryFactory $countryFactory
+     * @param EavConfig $eavConfig
      */
     public function __construct(
         DirectoryHelper $directoryHelper,
@@ -60,6 +60,17 @@ public function __construct(
         $this->countryFactory = $countryFactory;
         $this->eavConfig = $eavConfig ?: ObjectManager::getInstance()
             ->get(EavConfig::class);
+    }
+
+    /**
+     * Validate address.
+     *
+     * @param \Magento\Sales\Model\Order\Address $address
+     * @return array
+     */
+    public function validate(Address $address)
+    {
+        $warnings = [];
 
         if ($this->isTelephoneRequired()) {
             $this->required['telephone'] = 'Phone Number';
@@ -72,16 +83,7 @@ public function __construct(
         if ($this->isFaxRequired()) {
             $this->required['fax'] = 'Fax';
         }
-    }
 
-    /**
-     *
-     * @param \Magento\Sales\Model\Order\Address $address
-     * @return array
-     */
-    public function validate(Address $address)
-    {
-        $warnings = [];
         foreach ($this->required as $code => $label) {
             if (!$address->hasData($code)) {
                 $warnings[] = sprintf('%s is a required field', $label);
@@ -194,7 +196,10 @@ protected function isStateRequired($countryId)
     }
 
     /**
+     * Check whether telephone is required for address.
+     *
      * @return bool
+     * @throws \Magento\Framework\Exception\LocalizedException
      */
     protected function isTelephoneRequired()
     {
@@ -202,7 +207,10 @@ protected function isTelephoneRequired()
     }
 
     /**
+     * Check whether company is required for address.
+     *
      * @return bool
+     * @throws \Magento\Framework\Exception\LocalizedException
      */
     protected function isCompanyRequired()
     {
@@ -210,7 +218,10 @@ protected function isCompanyRequired()
     }
 
     /**
+     * Check whether fax is required for address.
+     *
      * @return bool
+     * @throws \Magento\Framework\Exception\LocalizedException
      */
     protected function isFaxRequired()
     {
diff --git a/lib/internal/Magento/Framework/Locale/Format.php b/lib/internal/Magento/Framework/Locale/Format.php
index ca50cdb2440f4..adcffe01b910e 100644
--- a/lib/internal/Magento/Framework/Locale/Format.php
+++ b/lib/internal/Magento/Framework/Locale/Format.php
@@ -5,6 +5,9 @@
  */
 namespace Magento\Framework\Locale;
 
+/**
+ * Price locale format.
+ */
 class Format implements \Magento\Framework\Locale\FormatInterface
 {
     /**
@@ -38,7 +41,8 @@ public function __construct(
     }
 
     /**
-     * Returns the first found number from a string
+     * Returns the first found number from a string.
+     *
      * Parsing depends on given locale (grouping and decimal)
      *
      * Examples for input:
@@ -100,7 +104,7 @@ public function getPriceFormat($localeCode = null, $currencyCode = null)
         }
 
         $formatter = new \NumberFormatter(
-            $localeCode . '@currency=' . $currency->getCode(),
+            $currency->getCode() ? $localeCode . '@currency=' . $currency->getCode() : $localeCode,
             \NumberFormatter::CURRENCY
         );
         $format = $formatter->getPattern();
diff --git a/lib/internal/Magento/Framework/Locale/Resolver.php b/lib/internal/Magento/Framework/Locale/Resolver.php
index 8372908a380ff..abbfbdc5c6c37 100644
--- a/lib/internal/Magento/Framework/Locale/Resolver.php
+++ b/lib/internal/Magento/Framework/Locale/Resolver.php
@@ -6,7 +6,12 @@
 namespace Magento\Framework\Locale;
 
 use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\Framework\App\DeploymentConfig;
+use Magento\Framework\App\ObjectManager;
 
+/**
+ * Manages locale config information.
+ */
 class Resolver implements ResolverInterface
 {
     /**
@@ -47,26 +52,34 @@ class Resolver implements ResolverInterface
      */
     protected $emulatedLocales = [];
 
+    /**
+     * @var DeploymentConfig
+     */
+    private $deploymentConfig;
+
     /**
      * @param ScopeConfigInterface $scopeConfig
      * @param string $defaultLocalePath
      * @param string $scopeType
      * @param mixed $locale
+     * @param DeploymentConfig|null $deploymentConfig
      */
     public function __construct(
         ScopeConfigInterface $scopeConfig,
         $defaultLocalePath,
         $scopeType,
-        $locale = null
+        $locale = null,
+        DeploymentConfig $deploymentConfig = null
     ) {
         $this->scopeConfig = $scopeConfig;
         $this->defaultLocalePath = $defaultLocalePath;
         $this->scopeType = $scopeType;
+        $this->deploymentConfig = $deploymentConfig ?: ObjectManager::getInstance()->create(DeploymentConfig::class);
         $this->setLocale($locale);
     }
 
     /**
-     * {@inheritdoc}
+     * @inheritdoc
      */
     public function getDefaultLocalePath()
     {
@@ -74,7 +87,7 @@ public function getDefaultLocalePath()
     }
 
     /**
-     * {@inheritdoc}
+     * @inheritdoc
      */
     public function setDefaultLocale($locale)
     {
@@ -83,12 +96,15 @@ public function setDefaultLocale($locale)
     }
 
     /**
-     * {@inheritdoc}
+     * @inheritdoc
      */
     public function getDefaultLocale()
     {
         if (!$this->defaultLocale) {
-            $locale = $this->scopeConfig->getValue($this->getDefaultLocalePath(), $this->scopeType);
+            $locale = false;
+            if ($this->deploymentConfig->isAvailable() && $this->deploymentConfig->isDbAvailable()) {
+                $locale = $this->scopeConfig->getValue($this->getDefaultLocalePath(), $this->scopeType);
+            }
             if (!$locale) {
                 $locale = self::DEFAULT_LOCALE;
             }
@@ -98,7 +114,7 @@ public function getDefaultLocale()
     }
 
     /**
-     * {@inheritdoc}
+     * @inheritdoc
      */
     public function setLocale($locale = null)
     {
@@ -111,7 +127,7 @@ public function setLocale($locale = null)
     }
 
     /**
-     * {@inheritdoc}
+     * @inheritdoc
      */
     public function getLocale()
     {
@@ -122,7 +138,7 @@ public function getLocale()
     }
 
     /**
-     * {@inheritdoc}
+     * @inheritdoc
      */
     public function emulate($scopeId)
     {
@@ -142,7 +158,7 @@ public function emulate($scopeId)
     }
 
     /**
-     * {@inheritdoc}
+     * @inheritdoc
      */
     public function revert()
     {
diff --git a/lib/internal/Magento/Framework/Locale/Test/Unit/FormatTest.php b/lib/internal/Magento/Framework/Locale/Test/Unit/FormatTest.php
index aa7ca377efa03..f6d7326f52764 100644
--- a/lib/internal/Magento/Framework/Locale/Test/Unit/FormatTest.php
+++ b/lib/internal/Magento/Framework/Locale/Test/Unit/FormatTest.php
@@ -53,6 +53,7 @@ protected function setUp()
 
         /** @var \Magento\Directory\Model\CurrencyFactory|\PHPUnit_Framework_MockObject_MockObject $currencyFactory */
         $currencyFactory = $this->getMockBuilder(\Magento\Directory\Model\CurrencyFactory::class)
+            ->disableOriginalConstructor()
             ->getMock();
 
         $this->formatModel = new \Magento\Framework\Locale\Format(