Course finder test semantic

tests/Mooc/Courses/Application/Find/CourseFinderTest.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace CodelyTv\Tests\Mooc\Courses\Application\Find;
+
+use CodelyTv\Mooc\Courses\Application\Find\CourseFinder;
+use CodelyTv\Mooc\Courses\Domain\CourseNotExist;
+use CodelyTv\Mooc\Shared\Domain\Courses\CourseId;
+use CodelyTv\Tests\Mooc\Courses\CoursesModuleUnitTestCase;
+use CodelyTv\Tests\Mooc\Courses\Domain\CourseMother;
+use CodelyTv\Mooc\Courses\Domain\Course;
+
+class CourseFinderTest extends CoursesModuleUnitTestCase
+{
+    private CourseFinder $courseFinder;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->courseFinder = new CourseFinder($this->repository());
+    }
+
+    public function testCourseFinderShouldFindAnExistingCourse()
+    {
+        $course = $this->givenACourse();
+        $actual = $this->whenFinderIsInvoked($course->id(), $course);
+        $this->thenTheCourseShouldBeTheExpected($course, $actual);
+    }
+
+    public function testCourseFinderShouldThrowExceptionWhenCourseNotFound()
+    {
+        $course = $this->givenACourse();
+        $this->whenFinderIsInvokedThenShouldThrowCourseNotFoundException($course->id());
+    }
+
+    private function givenACourse(): Course
+    {
+        return CourseMother::create();
+    }
+
+    private function whenFinderIsInvoked(CourseId $courseId, Course $course): Course
+    {
+        $this->shouldSearch($courseId, $course);
+        return $this->courseFinder->__invoke($course->id());
+    }
+
+    private function thenTheCourseShouldBeTheExpected(Course $course, Course $actual): void
+    {
+        $this->assertSimilar($course, $actual);
+    }
+
+    private function whenFinderIsInvokedThenShouldThrowCourseNotFoundException(CourseId $courseId)
+    {
+        $this->expectException(CourseNotExist::class);
+        $this->searchShouldThrowException($courseId, new CourseNotExist($courseId));
+        $this->courseFinder->__invoke($courseId);
+    }
+}

tests/Mooc/Courses/CoursesModuleUnitTestCase.php

@@ -7,6 +7,7 @@
 use CodelyTv\Mooc\Courses\Domain\Course;
 use CodelyTv\Mooc\Courses\Domain\CourseRepository;
 use CodelyTv\Mooc\Shared\Domain\Courses\CourseId;
+use CodelyTv\Shared\Domain\DomainError;
 use CodelyTv\Tests\Shared\Infrastructure\PhpUnit\UnitTestCase;
 use Mockery\MockInterface;
 
@@ -36,4 +37,13 @@ protected function repository(): CourseRepository|MockInterface
     {
         return $this->repository = $this->repository ?? $this->mock(CourseRepository::class);
     }
+
+    protected function searchShouldThrowException(CourseId $id, DomainError $exception)
+    {
+        $this->repository()
+            ->shouldReceive('search')
+            ->with($this->similarTo($id))
+            ->once()
+            ->andThrow($exception);
+    }
 }