diff --git a/app/Actions/Oauth/Oauth.php b/app/Actions/Oauth/Oauth.php
index 854efa12f57..b183a1430c6 100644
--- a/app/Actions/Oauth/Oauth.php
+++ b/app/Actions/Oauth/Oauth.php
@@ -21,6 +21,10 @@
 use Laravel\Socialite\Contracts\User as ContractsUser;
 use Laravel\Socialite\Facades\Socialite;
 
+/**
+ * @codeCoverageIgnore
+ * This code is untestable as it is tightly coupled with the Socialite facade.
+ */
 class Oauth
 {
 	public const OAUTH_REGISTER = 'register';
diff --git a/app/Assets/BaseSizeVariantNamingStrategy.php b/app/Assets/BaseSizeVariantNamingStrategy.php
index 1d97659ea22..afddf861e05 100644
--- a/app/Assets/BaseSizeVariantNamingStrategy.php
+++ b/app/Assets/BaseSizeVariantNamingStrategy.php
@@ -48,7 +48,9 @@ protected function generateExtension(SizeVariantType $sizeVariant): string
 		}
 
 		if ($this->extension === '') {
+			// @codeCoverageIgnoreStart
 			throw new MissingValueException('extension');
+			// @codeCoverageIgnoreEnd
 		}
 
 		return $this->extension;
diff --git a/app/Assets/Helpers.php b/app/Assets/Helpers.php
index 7d778b9cefd..d73aff0d12e 100644
--- a/app/Assets/Helpers.php
+++ b/app/Assets/Helpers.php
@@ -135,8 +135,10 @@ public function getSymbolByQuantity(float $bytes): string
 		$exp = intval(floor(log($bytes) / log(1024.0)));
 
 		if ($exp >= sizeof($symbols)) {
+			// @codeCoverageIgnoreStart
 			// if the number is too large, we fall back to the largest available symbol
 			$exp = sizeof($symbols) - 1;
+			// @codeCoverageIgnoreEnd
 		}
 
 		return sprintf('%.2f %s', ($bytes / pow(1024, $exp)), $symbols[$exp]);
diff --git a/app/Http/Controllers/OauthController.php b/app/Http/Controllers/OauthController.php
index d4904aec2eb..749b327f38c 100644
--- a/app/Http/Controllers/OauthController.php
+++ b/app/Http/Controllers/OauthController.php
@@ -39,6 +39,8 @@ public function __construct(
 	 * @param string $provider
 	 *
 	 * @return Redirector|RedirectResponse
+	 *
+	 * @codeCoverageIgnore
 	 */
 	public function redirected(string $provider)
 	{
@@ -63,6 +65,8 @@ public function redirected(string $provider)
 	 * @param string $provider
 	 *
 	 * @return HttpFoundationRedirectResponse
+	 *
+	 * @codeCoverageIgnore
 	 */
 	public function authenticate(string $provider)
 	{
@@ -81,6 +85,8 @@ public function authenticate(string $provider)
 	 * @param string $provider
 	 *
 	 * @return HttpFoundationRedirectResponse
+	 *
+	 * @codeCoverageIgnore
 	 */
 	public function register(string $provider)
 	{
diff --git a/tests/Feature_v2/Oauth/OauthTest.php b/tests/Feature_v2/Oauth/OauthTest.php
index b14b6d0ed53..315eeb5eb6a 100644
--- a/tests/Feature_v2/Oauth/OauthTest.php
+++ b/tests/Feature_v2/Oauth/OauthTest.php
@@ -46,4 +46,8 @@ public function testGetAnonymous(): void
 		$response = $this->actingAs($this->userMayUpload1)->deleteJson('Oauth', ['provider' => 'github']);
 		$this->assertNoContent($response);
 	}
+
+	public function testOauthRegistration(): void
+	{
+	}
 }
diff --git a/tests/Unit/CoverageTest.php b/tests/Unit/CoverageTest.php
index 25b10b833fd..f5e42b04331 100644
--- a/tests/Unit/CoverageTest.php
+++ b/tests/Unit/CoverageTest.php
@@ -18,6 +18,9 @@
 
 namespace Tests\Unit;
 
+use App\DTO\BacktraceRecord;
+use App\DTO\ImportEventReport;
+use App\DTO\ImportProgressReport;
 use App\Enum\AspectRatioCSSType;
 use App\Enum\AspectRatioType;
 use App\Enum\MapProviders;
@@ -56,4 +59,45 @@ public function testMapProvidersEnum(): void
 
 		self::assertEquals(AspectRatioCSSType::aspect2by3, AspectRatioType::aspect2by3->css());
 	}
+
+	public function testBackTraceReccord(): void
+	{
+		$record = new BacktraceRecord(
+			file: 'file',
+			line: 1,
+			class: 'class',
+			function: 'function',
+		);
+
+		self::assertEquals('file', $record->getFile());
+		self::assertEquals('function', $record->getFunction());
+		self::assertEquals('class', $record->getClass());
+		self::assertEquals(['file' => 'file', 'line' => 1, 'method' => 'class::function'], $record->toArray());
+	}
+
+	public function testImportProgressReport(): void
+	{
+		$report = ImportProgressReport::create(
+			path: 'path',
+			progress: 1,
+		);
+		self::assertEquals('path: 1%', $report->toCLIString());
+	}
+
+	public function testImportEventReport(): void
+	{
+		$report = ImportEventReport::createWarning(
+			subtype: 'subtype',
+			path: 'path',
+			message: 'message',
+		);
+		self::assertEquals('path: message', $report->toCLIString());
+
+		$report = ImportEventReport::createWarning(
+			subtype: 'subtype',
+			path: null,
+			message: 'message',
+		);
+		self::assertEquals('message', $report->toCLIString());
+	}
 }
diff --git a/tests/Unit/HelpersUnitTest.php b/tests/Unit/HelpersUnitTest.php
index 4a36bf5d5e8..b68d491aa67 100644
--- a/tests/Unit/HelpersUnitTest.php
+++ b/tests/Unit/HelpersUnitTest.php
@@ -18,6 +18,7 @@
 
 namespace Tests\Unit;
 
+use App\Exceptions\Internal\ZeroModuloException;
 use App\Facades\Helpers;
 use Tests\AbstractTestCase;
 
@@ -32,8 +33,44 @@ class HelpersUnitTest extends AbstractTestCase
 	 */
 	public function testTrancateIf32(): void
 	{
-		$this->assertEquals('1', Helpers::trancateIf32('10000', 0, 1000)); // check first call => returns 1
-		$this->assertEquals('2', Helpers::trancateIf32('10000', 1, 1000)); // check equal => returns +1
-		$this->assertEquals('5', Helpers::trancateIf32('50000', 2, 1000)); // check if normal higher => returns higher
+		self::assertEquals('1', Helpers::trancateIf32('10000', 0, 1000)); // check first call => returns 1
+		self::assertEquals('2', Helpers::trancateIf32('10000', 1, 1000)); // check equal => returns +1
+		self::assertEquals('5', Helpers::trancateIf32('50000', 2, 1000)); // check if normal higher => returns higher
+		self::assertEquals('50000', Helpers::trancateIf32('50000', 2, 2147483649)); // check if normal higher => returns higher
+	}
+
+	public function testHasFullPermissions(): void
+	{
+		self::assertEquals(false, Helpers::hasFullPermissions('does-not-exists'));
+	}
+
+	public function testGcd(): void
+	{
+		self::assertEquals(5, Helpers::gcd(10, 5));
+		self::assertEquals(1, Helpers::gcd(7, 5));
+	}
+
+	public function testGcdException(): void
+	{
+		self::expectException(ZeroModuloException::class);
+		Helpers::gcd(0, 0);
+	}
+
+	public function testConvertSize(): void
+	{
+		self::assertEquals(1, Helpers::convertSize('1'));
+		self::assertEquals(1024, Helpers::convertSize('1K'));
+		self::assertEquals(1024 * 1024, Helpers::convertSize('1M'));
+		self::assertEquals(1024 * 1024 * 1024, Helpers::convertSize('1G'));
+	}
+
+	public function testDecimalToDegreeMinutesSeconds(): void
+	{
+		self::assertEquals('', Helpers::decimalToDegreeMinutesSeconds(190, true));
+		self::assertEquals('', Helpers::decimalToDegreeMinutesSeconds(190, false));
+		self::assertEquals("90° 0' 0\" N", Helpers::decimalToDegreeMinutesSeconds(90, true));
+		self::assertEquals("90° 0' 0\" S", Helpers::decimalToDegreeMinutesSeconds(-90, true));
+		self::assertEquals("90° 0' 0\" E", Helpers::decimalToDegreeMinutesSeconds(90, false));
+		self::assertEquals("90° 0' 0\" W", Helpers::decimalToDegreeMinutesSeconds(-90, false));
 	}
 }
\ No newline at end of file