Fix: GitHub branch pagination

src/VCS/Adapter/Git/GitHub.php

@@ -181,7 +181,15 @@ public function createFile(string $owner, string $repositoryName, string $filepa
      */
     public function createBranch(string $owner, string $repositoryName, string $newBranchName, string $oldBranchName): array
     {
-        throw new Exception("Not implemented");
+        $latestCommit = $this->getLatestCommit($owner, $repositoryName, $oldBranchName);
+        $sha = $latestCommit['commitHash'];
+
+        $response = $this->call(self::METHOD_POST, "/repos/$owner/$repositoryName/git/refs", ['Authorization' => "Bearer $this->accessToken"], [
+            'ref' => "refs/heads/$newBranchName",
+            'sha' => $sha,
+        ]);
+
+        return $response['body'] ?? [];
     }
 
     /**
@@ -738,22 +746,28 @@ public function getPullRequestFromBranch(string $owner, string $repositoryName,
      *
      * @param  string  $owner Owner name of the repository
      * @param  string  $repositoryName Name of the GitHub repository
+     * @param  int  $perPage Number of branches to fetch per page
+     * @param  int  $page Page number to start fetching from
      * @return array<string> List of branch names as array
      */
-    public function listBranches(string $owner, string $repositoryName): array
+    public function listBranches(string $owner, string $repositoryName, int $perPage = 100, int $page = 1): array
     {
         $url = "/repos/$owner/$repositoryName/branches";
+        $perPage = min(max($perPage, 1), 100);
 
-        $response = $this->call(self::METHOD_GET, $url, ['Authorization' => "Bearer $this->accessToken"]);
+        $response = $this->call(self::METHOD_GET, $url, ['Authorization' => "Bearer $this->accessToken"], [
+            'page' => $page,
+            'per_page' => $perPage,
+        ]);
 
+        $statusCode = $response['headers']['status-code'] ?? 0;
         $responseBody = $response['body'] ?? [];
 
-        $names = [];
-        foreach ($responseBody as $subarray) {
-            $names[] = $subarray['name'] ?? '';
+        if ($statusCode < 200 || $statusCode >= 300 || !is_array($responseBody)) {
+            return [];
         }
 
-        return $names;
+        return array_values(array_map(fn ($branch) => $branch['name'] ?? '', $responseBody));
     }
 
     /**

tests/VCS/Adapter/GitHubTest.php

@@ -525,6 +525,55 @@ public function testGetCommitWithInvalidHash(): void
         }
     }
 
+    public function testListBranchesPagination(): void
+    {
+        $repositoryName = 'test-list-branches-pages-' . \uniqid();
+        $this->vcsAdapter->createRepository(static::$owner, $repositoryName, false);
+
+        try {
+            $this->vcsAdapter->createFile(static::$owner, $repositoryName, 'README.md', '# Test');
+            $this->vcsAdapter->createBranch(static::$owner, $repositoryName, 'branch-a', static::$defaultBranch);
+            $this->vcsAdapter->createBranch(static::$owner, $repositoryName, 'branch-b', static::$defaultBranch);
+
+            /** @var GitHub $adapter */
+            $adapter = $this->vcsAdapter;
+
+            $page1 = $adapter->listBranches(static::$owner, $repositoryName, 1, 1);
+            $this->assertSame(['branch-a'], $page1);
+
+            $page2 = $adapter->listBranches(static::$owner, $repositoryName, 1, 2);
+            $this->assertSame(['branch-b'], $page2);
+
+            $all = $adapter->listBranches(static::$owner, $repositoryName, 100, 1);
+            $this->assertEqualsCanonicalizing([static::$defaultBranch, 'branch-a', 'branch-b'], $all);
+        } finally {
+            $this->vcsAdapter->deleteRepository(static::$owner, $repositoryName);
+        }
+    }
+
+    public function testListBranchesEmptyRepository(): void
+    {
+        $repositoryName = 'test-list-branches-empty-' . \uniqid();
+        $this->vcsAdapter->createRepository(static::$owner, $repositoryName, false);
+
+        try {
+            $branches = $this->vcsAdapter->listBranches(static::$owner, $repositoryName);
+
+            $this->assertIsArray($branches);
+            $this->assertEmpty($branches);
+        } finally {
+            $this->vcsAdapter->deleteRepository(static::$owner, $repositoryName);
+        }
+    }
+
+    public function testListBranchesNonExistingRepository(): void
+    {
+        $branches = $this->vcsAdapter->listBranches(static::$owner, 'non-existing-repo-' . \uniqid());
+
+        $this->assertIsArray($branches);
+        $this->assertEmpty($branches);
+    }
+
     public function testGetLatestCommit(): void
     {
         $repositoryName = 'test-get-latest-commit-' . \uniqid();