chore: add tests

src/Http/Components/QueryParameters/ReadsQueryParameters.php

@@ -27,9 +27,13 @@ public function __construct(array $queryParameters = [])
      */
     public function get(string $name): null|array|bool|float|int|string
     {
-        return count($this->queryParameters) > 1
-            ? $this->queryParameters[$name]
-            : $this->first($name);
+        $value = $this->queryParameters[$name] ?? null;
+
+        if ($value === null) {
+            return null;
+        }
+
+        return count($value) > 1 ? $value : $value[0];
     }
 
     public function first(string $name): null|bool|float|int|string

tests/Http/Components/QueryParameters/MutableQueryParameterCollectionTest.php

@@ -0,0 +1,100 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rest\Tests\Http\Components\QueryParameters;
+
+use PHPUnit\Framework\TestCase;
+use Rest\Http\Components\QueryParameters\ImmutableQueryParameterCollection;
+use Rest\Http\Components\QueryParameters\MutableQueryParameterCollection;
+
+/**
+ * @internal
+ */
+class MutableQueryParameterCollectionTest extends TestCase
+{
+    public function test_getting_query_parameters()
+    {
+        $parameters = [
+            'search' => ['query'],
+            'first_name' => ['Jim', 'Dwight'],
+        ];
+
+        $queryParameters = new MutableQueryParameterCollection($parameters);
+
+        $this->assertSame('query', $queryParameters->get('search'));
+        $this->assertEqualsCanonicalizing(['Jim', 'Dwight'], $queryParameters->get('first_name'));
+        $this->assertNull($queryParameters->get('not_found'));
+        $this->assertEqualsCanonicalizing($parameters, $queryParameters->all());
+    }
+
+    public function test_getting_first_query_parameter()
+    {
+        $queryParameters = new MutableQueryParameterCollection([
+            'first_name' => ['Jim', 'Dwight'],
+        ]);
+
+        $this->assertSame('Jim', $queryParameters->first('first_name'));
+    }
+
+    public function test_adding_query_parameter()
+    {
+        $queryParameters = new MutableQueryParameterCollection();
+
+        $queryParameters
+            ->add('first_name', 'Jim')
+            ->add('first_name', 'Dwight');
+
+        $this->assertEqualsCanonicalizing(['Jim', 'Dwight'], $queryParameters->get('first_name'));
+    }
+
+    public function test_setting_query_parameter()
+    {
+        $queryParameters = new MutableQueryParameterCollection();
+
+        $queryParameters
+            ->add('first_name', 'Bob')
+            ->set('first_name', 'Jim');
+
+        $this->assertSame('Jim', $queryParameters->get('first_name'));
+    }
+
+    public function test_merging_collection_parameters()
+    {
+        $queryParameters = new MutableQueryParameterCollection([
+            'first_name' => ['Jim', 'Dwight'],
+        ]);
+
+        $queryParameters->merge(['first_name' => 'Larry']);
+
+        $this->assertEqualsCanonicalizing(
+            ['Jim', 'Dwight', 'Larry'],
+            $queryParameters->get('first_name')
+        );
+    }
+
+    public function test_replacing_collection_parameters()
+    {
+        $queryParameters = new MutableQueryParameterCollection([
+            'first_name' => ['Jim', 'Dwight'],
+        ]);
+
+        $queryParameters->replace(['first_name' => 'Larry']);
+
+        $this->assertEqualsCanonicalizing(
+            'Larry',
+            $queryParameters->get('first_name')
+        );
+    }
+
+    public function test_converting_to_immutable_collection()
+    {
+        $queryParameters = new MutableQueryParameterCollection([
+            'first_name' => ['Jim'],
+        ]);
+
+        $queryParameters = $queryParameters->toImmutable();
+
+        $this->assertInstanceOf(ImmutableQueryParameterCollection::class, $queryParameters);
+    }
+}

tests/Http/Segments/MutableSegmentTest.php → tests/Http/Components/Segments/MutableSegmentTest.php

@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Http\Segments;
+namespace Rest\Tests\Http\Components\Segments;
 
 use PHPUnit\Framework\TestCase;
 use Rest\Http\Components\Segments\MutableSegmentCollection;

tests/Http/Request/RestRequestBuilderTest.php

@@ -119,7 +119,7 @@ public function test_making_a_request_with_query_parameters()
             ])
             ->make();
 
-        $this->assertSame(['my-query'], $request->queryParameters->get('search'));
+        $this->assertSame('my-query', $request->queryParameters->get('search'));
         $this->assertSame(['John', 'Jack'], $request->queryParameters->get('first_name'));
     }