init

backend/tests/Unit/TenantContextTest.php

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+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit;
+
+use App\Support\MissingTenantContextException;
+use App\Support\TenantContext;
+use InvalidArgumentException;
+use Tests\TestCase;
+
+class TenantContextTest extends TestCase
+{
+    public function test_code_requires_a_tenant(): void
+    {
+        $this->expectException(MissingTenantContextException::class);
+
+        app(TenantContext::class)->code();
+    }
+
+    public function test_empty_tenant_code_is_rejected(): void
+    {
+        $this->expectException(InvalidArgumentException::class);
+
+        app(TenantContext::class)->set('');
+    }
+
+    public function test_cache_and_lock_keys_include_the_tenant(): void
+    {
+        $context = app(TenantContext::class);
+        $context->set('acme');
+
+        $this->assertSame('tenant:acme:sku:1', $context->cacheKey('sku:1'));
+        $this->assertSame('lock:tenant:acme:inventory:1', $context->lockKey('inventory:1'));
+    }
+
+    public function test_run_restores_the_previous_tenant(): void
+    {
+        $context = app(TenantContext::class);
+        $context->set('tenant-a');
+
+        $seen = $context->run('tenant-b', fn (): string => $context->code());
+
+        $this->assertSame('tenant-b', $seen);
+        $this->assertSame('tenant-a', $context->code());
+    }
+
+    public function test_run_clears_context_when_none_was_set(): void
+    {
+        $context = app(TenantContext::class);
+
+        $context->run('tenant-b', fn (): string => $context->code());
+
+        $this->assertFalse($context->has());
+    }
+}