1 files changed, 98 insertions, 0 deletions
diff --git a/spec/lib/gitlab/changelog/config_spec.rb b/spec/lib/gitlab/changelog/config_spec.rb
new file mode 100644
index 00000000000..51988acf3d1
--- /dev/null
+++ b/spec/lib/gitlab/changelog/config_spec.rb
@@ -0,0 +1,98 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Changelog::Config do
+  let(:project) { build_stubbed(:project) }
+
+  describe '.from_git' do
+    it 'retrieves the configuration from Git' do
+      allow(project.repository)
+        .to receive(:changelog_config)
+        .and_return("---\ndate_format: '%Y'")
+
+      expect(described_class)
+        .to receive(:from_hash)
+        .with(project, 'date_format' => '%Y')
+
+      described_class.from_git(project)
+    end
+
+    it 'returns the default configuration when no YAML file exists in Git' do
+      allow(project.repository)
+        .to receive(:changelog_config)
+        .and_return(nil)
+
+      expect(described_class)
+        .to receive(:new)
+        .with(project)
+
+      described_class.from_git(project)
+    end
+  end
+
+  describe '.from_hash' do
+    it 'sets the configuration according to a Hash' do
+      config = described_class.from_hash(
+        project,
+        'date_format' => 'foo',
+        'template' => 'bar',
+        'categories' => { 'foo' => 'bar' }
+      )
+
+      expect(config.date_format).to eq('foo')
+      expect(config.template)
+        .to be_instance_of(Gitlab::Changelog::AST::Expressions)
+
+      expect(config.categories).to eq({ 'foo' => 'bar' })
+    end
+
+    it 'raises Error when the categories are not a Hash' do
+      expect { described_class.from_hash(project, 'categories' => 10) }
+        .to raise_error(Gitlab::Changelog::Error)
+    end
+  end
+
+  describe '#contributor?' do
+    it 'returns true if a user is a contributor' do
+      user = build_stubbed(:author)
+
+      allow(project.team).to receive(:contributor?).with(user).and_return(true)
+
+      expect(described_class.new(project).contributor?(user)).to eq(true)
+    end
+
+    it "returns true if a user isn't a contributor" do
+      user = build_stubbed(:author)
+
+      allow(project.team).to receive(:contributor?).with(user).and_return(false)
+
+      expect(described_class.new(project).contributor?(user)).to eq(false)
+    end
+  end
+
+  describe '#category' do
+    it 'returns the name of a category' do
+      config = described_class.new(project)
+
+      config.categories['foo'] = 'Foo'
+
+      expect(config.category('foo')).to eq('Foo')
+    end
+
+    it 'returns the raw category name when no alternative name is configured' do
+      config = described_class.new(project)
+
+      expect(config.category('bla')).to eq('bla')
+    end
+  end
+
+  describe '#format_date' do
+    it 'formats a date according to the configured date format' do
+      config = described_class.new(project)
+      time = Time.utc(2021, 1, 5)
+
+      expect(config.format_date(time)).to eq('2021-01-05')
+    end
+  end
+end