[10.x] Allow failed job providers to be countable

src/Illuminate/Queue/Failed/DatabaseFailedJobProvider.php

@@ -2,11 +2,12 @@
 
 namespace Illuminate\Queue\Failed;
 
+use Countable;
 use DateTimeInterface;
 use Illuminate\Database\ConnectionResolverInterface;
 use Illuminate\Support\Facades\Date;
 
-class DatabaseFailedJobProvider implements FailedJobProviderInterface, PrunableFailedJobProvider
+class DatabaseFailedJobProvider implements Countable, FailedJobProviderInterface, PrunableFailedJobProvider
 {
     /**
      * The connection resolver implementation.
@@ -130,6 +131,14 @@ public function prune(DateTimeInterface $before)
         return $totalDeleted;
     }
 
+    /**
+     * Count the failed jobs.
+     */
+    public function count(): int
+    {
+        return $this->getTable()->count();
+    }
+
     /**
      * Get a new query builder instance for the table.
      *

src/Illuminate/Queue/Failed/DatabaseUuidFailedJobProvider.php

@@ -2,11 +2,12 @@
 
 namespace Illuminate\Queue\Failed;
 
+use Countable;
 use DateTimeInterface;
 use Illuminate\Database\ConnectionResolverInterface;
 use Illuminate\Support\Facades\Date;
 
-class DatabaseUuidFailedJobProvider implements FailedJobProviderInterface, PrunableFailedJobProvider
+class DatabaseUuidFailedJobProvider implements Countable, FailedJobProviderInterface, PrunableFailedJobProvider
 {
     /**
      * The connection resolver implementation.
@@ -143,6 +144,14 @@ public function prune(DateTimeInterface $before)
         return $totalDeleted;
     }
 
+    /**
+     * Count the failed jobs.
+     */
+    public function count(): int
+    {
+        return $this->getTable()->count();
+    }
+
     /**
      * Get a new query builder instance for the table.
      *

src/Illuminate/Queue/Failed/FileFailedJobProvider.php

@@ -3,10 +3,11 @@
 namespace Illuminate\Queue\Failed;
 
 use Closure;
+use Countable;
 use DateTimeInterface;
 use Illuminate\Support\Facades\Date;
 
-class FileFailedJobProvider implements FailedJobProviderInterface, PrunableFailedJobProvider
+class FileFailedJobProvider implements Countable, FailedJobProviderInterface, PrunableFailedJobProvider
 {
     /**
      * The file path where the failed job file should be stored.
@@ -202,4 +203,12 @@ protected function write(array $jobs)
             json_encode($jobs, JSON_PRETTY_PRINT)
         );
     }
+
+    /**
+     * Count the failed jobs.
+     */
+    public function count(): int
+    {
+        return count($this->read());
+    }
 }

src/Illuminate/Queue/Failed/NullFailedJobProvider.php

@@ -2,7 +2,9 @@
 
 namespace Illuminate\Queue\Failed;
 
-class NullFailedJobProvider implements FailedJobProviderInterface
+use Countable;
+
+class NullFailedJobProvider implements Countable, FailedJobProviderInterface
 {
     /**
      * Log a failed job into storage.
@@ -60,4 +62,12 @@ public function flush($hours = null)
     {
         //
     }
+
+    /**
+     * Count the failed jobs.
+     */
+    public function count(): int
+    {
+        return 0;
+    }
 }

tests/Queue/DatabaseFailedJobProviderTest.php

@@ -9,6 +9,7 @@
 use Illuminate\Support\Facades\Date;
 use Illuminate\Support\Str;
 use PHPUnit\Framework\TestCase;
+use RuntimeException;
 
 class DatabaseFailedJobProviderTest extends TestCase
 {
@@ -71,4 +72,31 @@ public function testCanProperlyLogFailedJob()
         $this->assertSame(1, $db->getConnection()->table('failed_jobs')->count());
         $this->assertSame($exception, $db->getConnection()->table('failed_jobs')->first()->exception);
     }
+
+    public function testJobsCanBeCounted()
+    {
+        $db = new DB;
+        $db->addConnection([
+            'driver' => 'sqlite',
+            'database' => ':memory:',
+        ]);
+        $db->getConnection()->getSchemaBuilder()->create('failed_jobs', function (Blueprint $table) {
+            $table->id();
+            $table->text('connection');
+            $table->text('queue');
+            $table->longText('payload');
+            $table->longText('exception');
+            $table->timestamp('failed_at')->useCurrent();
+        });
+        $provider = new DatabaseFailedJobProvider($db->getDatabaseManager(), 'default', 'failed_jobs');
+
+        $this->assertCount(0, $provider);
+
+        $provider->log('database', 'default', json_encode(['uuid' => (string) Str::uuid()]), new RuntimeException());
+        $this->assertCount(1, $provider);
+
+        $provider->log('database', 'default', json_encode(['uuid' => (string) Str::uuid()]), new RuntimeException());
+        $provider->log('database', 'default', json_encode(['uuid' => (string) Str::uuid()]), new RuntimeException());
+        $this->assertCount(3, $provider);
+    }
 }

tests/Queue/DatabaseUuidFailedJobProviderTest.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Illuminate\Tests\Queue;
+
+use Illuminate\Database\Capsule\Manager as DB;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Queue\Failed\DatabaseUuidFailedJobProvider;
+use Illuminate\Support\Str;
+use PHPUnit\Framework\TestCase;
+use RuntimeException;
+
+class DatabaseUuidFailedJobProviderTest extends TestCase
+{
+    public function testJobsCanBeCounted()
+    {
+        $db = new DB;
+        $db->addConnection([
+            'driver' => 'sqlite',
+            'database' => ':memory:',
+        ]);
+        $db->getConnection()->getSchemaBuilder()->create('failed_jobs', function (Blueprint $table) {
+            $table->uuid();
+            $table->text('connection');
+            $table->text('queue');
+            $table->longText('payload');
+            $table->longText('exception');
+            $table->timestamp('failed_at')->useCurrent();
+        });
+        $provider = new DatabaseUuidFailedJobProvider($db->getDatabaseManager(), 'default', 'failed_jobs');
+
+        $this->assertCount(0, $provider);
+
+        $provider->log('database', 'default', json_encode(['uuid' => (string) Str::uuid()]), new RuntimeException());
+        $this->assertCount(1, $provider);
+
+        $provider->log('database', 'default', json_encode(['uuid' => (string) Str::uuid()]), new RuntimeException());
+        $provider->log('database', 'default', json_encode(['uuid' => (string) Str::uuid()]), new RuntimeException());
+        $this->assertCount(3, $provider);
+    }
+}

tests/Queue/FileFailedJobProviderTest.php

@@ -140,6 +140,18 @@ public function testEmptyFailedJobsByDefault()
         $this->assertEmpty($failedJobs);
     }
 
+    public function testJobsCanBeCounted()
+    {
+        $this->assertCount(0, $this->provider);
+
+        $this->logFailedJob();
+        $this->assertCount(1, $this->provider);
+
+        $this->logFailedJob();
+        $this->logFailedJob();
+        $this->assertCount(3, $this->provider);
+    }
+
     public function logFailedJob()
     {
         $uuid = Str::uuid();