Improve code coverage

Author: colinodell

.travis.yml

@@ -27,8 +27,5 @@ script:
   - vendor/bin/phpunit --coverage-text --coverage-clover=coverage.clover
 
 after_script:
-  - |
-    if [[ "$TRAVIS_PHP_VERSION" != '7.0' ]]; then
-      wget https://scrutinizer-ci.com/ocular.phar
-      php ocular.phar code-coverage:upload --format=php-clover coverage.clover
-    fi
+  - wget https://scrutinizer-ci.com/ocular.phar
+  - php ocular.phar code-coverage:upload --format=php-clover coverage.clover

src/Json5Decoder.php

@@ -245,7 +245,7 @@ private function number()
 
         // support for Infinity
         if ($this->ch === 'I') {
-            $number = $this->word();
+            $this->word();
 
             return ($sign === '-') ? -INF : INF;
         }
@@ -523,7 +523,7 @@ private function obj()
 
         $this->nextOrFail('{');
         $this->white();
-        while ($this->ch) {
+        while ($this->ch !== null) {
             if ($this->ch === '}') {
                 $this->nextOrFail('}');
                 $this->depth--;

test/Functional/ParseTest.php

@@ -155,9 +155,9 @@ public function dataForTestInvalidES5WhichIsAlsoInvalidJson5()
         return $tests;
     }
 
-    public function testNaN()
+    public function testNaNWithSign()
     {
-        $this->assertTrue(is_nan(Json5Decoder::decode('NaN')));
+        $this->assertTrue(is_nan(Json5Decoder::decode('+NaN')));
     }
 
     public function testBadNumberStartingWithN()