1 files changed, 25 insertions, 0 deletions
diff --git a/spec/graphql/types/commit_signature_interface_spec.rb b/spec/graphql/types/commit_signature_interface_spec.rb
new file mode 100644
index 00000000000..4962131d9b5
--- /dev/null
+++ b/spec/graphql/types/commit_signature_interface_spec.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe GitlabSchema.types['CommitSignature'] do
+  it 'exposes the expected fields' do
+    expect(described_class).to have_graphql_fields(:verification_status, :commit_sha, :project)
+  end
+
+  describe '.resolve_type' do
+    it 'resolves gpg signatures' do
+      expect(described_class.resolve_type(build(:gpg_signature), {})).to eq(
+        Types::CommitSignatures::GpgSignatureType)
+    end
+
+    it 'resolves x509 signatures' do
+      expect(described_class.resolve_type(build(:x509_commit_signature), {})).to eq(
+        Types::CommitSignatures::X509SignatureType)
+    end
+
+    it 'raises an error when type is not known' do
+      expect { described_class.resolve_type(Class, {}) }.to raise_error('Unsupported commit signature type')
+    end
+  end
+end