1 files changed, 77 insertions, 5 deletions
diff --git a/spec/lib/gitlab/static_site_editor/config/file_config_spec.rb b/spec/lib/gitlab/static_site_editor/config/file_config_spec.rb
index 594425c2dab..d444d4f1df7 100644
--- a/spec/lib/gitlab/static_site_editor/config/file_config_spec.rb
+++ b/spec/lib/gitlab/static_site_editor/config/file_config_spec.rb
@@ -3,13 +3,85 @@
 require 'spec_helper'
 
 RSpec.describe Gitlab::StaticSiteEditor::Config::FileConfig do
-  subject(:config) { described_class.new }
+  let(:config) do
+    described_class.new(yml)
+  end
+
+  context 'when config is valid' do
+    context 'when config has valid values' do
+      let(:yml) do
+        <<-EOS
+        static_site_generator: middleman
+        EOS
+      end
+
+      describe '#to_hash_with_defaults' do
+        it 'returns hash created from string' do
+          expect(config.to_hash_with_defaults.fetch(:static_site_generator)).to eq 'middleman'
+        end
+      end
+
+      describe '#valid?' do
+        it 'is valid' do
+          expect(config).to be_valid
+        end
+
+        it 'has no errors' do
+          expect(config.errors).to be_empty
+        end
+      end
+    end
+  end
+
+  context 'when a config entry has an empty value' do
+    let(:yml) { 'static_site_generator: ' }
+
+    describe '#to_hash' do
+      it 'returns default value' do
+        expect(config.to_hash_with_defaults.fetch(:static_site_generator)).to eq 'middleman'
+      end
+    end
+
+    describe '#valid?' do
+      it 'is valid' do
+        expect(config).to be_valid
+      end
+
+      it 'has no errors' do
+        expect(config.errors).to be_empty
+      end
+    end
+  end
+
+  context 'when config is invalid' do
+    context 'when yml is incorrect' do
+      let(:yml) { '// invalid' }
+
+      describe '.new' do
+        it 'raises error' do
+          expect { config }.to raise_error(described_class::ConfigError, /Invalid configuration format/)
+        end
+      end
+    end
+
+    context 'when config value exists but is not a valid value' do
+      let(:yml) { 'static_site_generator: "unsupported-generator"' }
+
+      describe '#valid?' do
+        it 'is not valid' do
+          expect(config).not_to be_valid
+        end
 
-  describe '#data' do
-    subject { config.data }
+        it 'has errors' do
+          expect(config.errors).not_to be_empty
+        end
+      end
 
-    it 'returns hardcoded data for now' do
-      is_expected.to match(static_site_generator: 'middleman')
+      describe '#errors' do
+        it 'returns an array of strings' do
+          expect(config.errors).to all(be_an_instance_of(String))
+        end
+      end
     end
   end
 end