Changes specification to support unexisting .env file

src/ZendPhpDotEnv/DotEnvLoader.php

@@ -41,7 +41,7 @@ public static function loadFromConstant($constant, $file)
         try {
             return DotEnvFactory::createFromConstant($constant, $file)->load();
         } catch (InvalidPathException $e) {
-            throw new InvalidConstantPathException($e->getMessage(), $e->getCode(), $e);
+            //
         }
     }
 
@@ -56,7 +56,7 @@ public static function loadFromEnvironmentVariable($variable, $file)
         try {
             return DotEnvFactory::createFromEnvironmentVariable($variable, $file)->load();
         } catch (InvalidPathException $e) {
-            throw new InvalidEnvironmentVariablePathException($e->getMessage(), $e->getCode(), $e);
+            //
         }
     }
 
@@ -70,7 +70,7 @@ public static function loadFromWorkingDirectory($file)
         try {
             return DotEnvFactory::createFromWorkingDirectory($file)->load();
         } catch (InvalidPathException $e) {
-            throw new InvalidWorkingDirectoryPathException($e->getMessage(), $e->getCode(), $e);
+            //
         }
     }
 }

tests/ZendPhpDotEnv/DotEnvLoaderTest.php

@@ -33,34 +33,4 @@ public function testHasEnvironmentVariable()
 
         self::assertTrue($actual);
     }
-
-    /**
-     * @expectedException \Abacaphiliac\ZendPhpDotEnv\Exception\InvalidConstantPathException
-     */
-    public function testLoadEnvironmentVariablesFromConstant()
-    {
-        self::assertFalse(defined(__FUNCTION__));
-        define(__FUNCTION__, __DIR__);
-
-        DotEnvLoader::loadFromConstant(__FUNCTION__, '.testEnv');
-    }
-
-    /**
-     * @expectedException \Abacaphiliac\ZendPhpDotEnv\Exception\InvalidEnvironmentVariablePathException
-     */
-    public function testLoadEnvironmentVariablesFromEnvironmentVariable()
-    {
-        self::assertFalse(DotEnvLoader::hasEnvironmentVariable(__FUNCTION__));
-        $_ENV[__FUNCTION__] = __DIR__;
-
-        DotEnvLoader::loadFromEnvironmentVariable(__FUNCTION__, '.testEnv');
-    }
-
-    /**
-     * @expectedException \Abacaphiliac\ZendPhpDotEnv\Exception\InvalidWorkingDirectoryPathException
-     */
-    public function testLoadEnvironmentVariablesFromWorkingDirectory()
-    {
-        DotEnvLoader::loadFromWorkingDirectory($file = '.testEnv');
-    }
 }