diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a486e28..8ff0455 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,4 +22,4 @@ jobs:
     - name: Run PHPUnit tests
       run: vendor/bin/phpunit
     - name: Run PhpStan Analyse Code
-      run:  vendor/bin/phpstan analyse --level=3 src tests
\ No newline at end of file
+      run:  vendor/bin/phpstan analyse --level=4 src tests
\ No newline at end of file
diff --git a/tests/Unit/CategoryTest.php b/tests/Unit/CategoryTest.php
index 28f7932..e44ddca 100644
--- a/tests/Unit/CategoryTest.php
+++ b/tests/Unit/CategoryTest.php
@@ -86,15 +86,12 @@ public function test_findBy_for_each_short_code()
 
     public function test_allCategories_for_null_values()
     {
-        $hasNull = false;
         foreach ($this->category->allCategories() as $set) {
-            if ($hasNull = in_array(null, (array) $set, true)) {
+            if (in_array(null, (array) $set, true)) {
                 $this->fail('Category dataset can\'t have null values');
-                break;
             }
         }
-
-        $this->assertTrue(!$hasNull);
+        $this->assertTrue(true);
     }
 
     public function test_allCategories_for_count()
diff --git a/tests/Unit/DistrictTest.php b/tests/Unit/DistrictTest.php
index ce0ed79..00e4c03 100644
--- a/tests/Unit/DistrictTest.php
+++ b/tests/Unit/DistrictTest.php
@@ -81,15 +81,13 @@ public function test_allDistricts_for_count()
 
     public function test_allDistricts_for_null_values()
     {
-        $hasNull = false;
         foreach ($this->district->allDistricts() as $set) {
-            if ($hasNull = in_array(null, (array) $set, true)) {
+            if (in_array(null, (array) $set, true)) {
                 $this->fail('District dataset can\'t have null values');
-                break;
             }
         }
 
-        $this->assertTrue(!$hasNull);
+        $this->assertTrue(true);
     }
 
     public function test_district_for_correct_province_id()
@@ -103,7 +101,6 @@ public function test_district_for_correct_province_id()
             if($district && !in_array($district->province_id, range(1,7))){
                 $correct = false;
                 $this->fail('Invalid Province for District');
-                break;
             }
         }
 
diff --git a/tests/Unit/MunicipalityTest.php b/tests/Unit/MunicipalityTest.php
index 3f44d85..ae68895 100644
--- a/tests/Unit/MunicipalityTest.php
+++ b/tests/Unit/MunicipalityTest.php
@@ -83,15 +83,13 @@ public function test_allMunicipalities_count()
 
     public function test_allMunicipalities_for_null_values()
     {
-        $hasNull = false;
         foreach ($this->municipality->allMunicipalities() as $set) {
-            if ($hasNull = in_array(null, (array) $set, true)) {
+            if (in_array(null, (array) $set, true)) {
                 $this->fail('Municipality dataset can\'t have null values');
-                break;
             }
         }
 
-        $this->assertTrue(!$hasNull);
+        $this->assertTrue(true);
     }
 
     public function test_if_municipality_has_wards_in_range_of_5_to_33()
@@ -114,7 +112,6 @@ public function test_if_municipality_has_wards_in_range_of_5_to_33()
             {
                 $correct = false;
                 $this->fail('Invalid Wards for Municipality');
-                break;
             }
         }
 
@@ -132,7 +129,6 @@ public function test_if_municipality_has_correct_category_id()
             if($municipality && !in_array($municipality->category_id, range(1,4))){
                 $correct = false;
                 $this->fail('Invalid Category for Municipality');
-                break;
             }
         }
 
@@ -150,7 +146,6 @@ public function test_if_municipality_has_correct_district_id()
             if($municipality && !in_array($municipality->district_id, range(1,77))){
                 $correct = false;
                 $this->fail('Invalid District for Municipality');
-                break;
             }
         }
 
diff --git a/tests/Unit/ProvinceTest.php b/tests/Unit/ProvinceTest.php
index f679132..4fa3c79 100644
--- a/tests/Unit/ProvinceTest.php
+++ b/tests/Unit/ProvinceTest.php
@@ -84,15 +84,13 @@ public function test_allProvinces_count()
 
     public function test_allProvinces_for_null_values()
     {
-        $hasNull = false;
         foreach ($this->province->allProvinces() as $set) {
-            if ($hasNull = in_array(null, (array) $set, true)) {
+            if (in_array(null, (array) $set, true)) {
                 $this->fail('Province dataset can\'t have null values');
-                break;
             }
         }
 
-        $this->assertTrue(!$hasNull);
+        $this->assertTrue(true);
     }
 
     public function test_search()