1 files changed, 220 insertions, 0 deletions
diff --git a/spec/lib/gitlab/git/index_spec.rb b/spec/lib/gitlab/git/index_spec.rb
new file mode 100644
index 00000000000..d0c7ca60ddc
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+++ b/spec/lib/gitlab/git/index_spec.rb
@@ -0,0 +1,220 @@
+require 'spec_helper'
+
+describe Gitlab::Git::Index, seed_helper: true do
+  let(:repository) { Gitlab::Git::Repository.new(TEST_REPO_PATH) }
+  let(:index) { described_class.new(repository) }
+
+  before do
+    index.read_tree(repository.lookup('master').tree)
+  end
+
+  describe '#create' do
+    let(:options) do
+      {
+        content: 'Lorem ipsum...',
+        file_path: 'documents/story.txt'
+      }
+    end
+
+    context 'when no file at that path exists' do
+      it 'creates the file in the index' do
+        index.create(options)
+
+        entry = index.get(options[:file_path])
+
+        expect(entry).not_to be_nil
+        expect(repository.lookup(entry[:oid]).content).to eq(options[:content])
+      end
+    end
+
+    context 'when a file at that path exists' do
+      before do
+        options[:file_path] = 'files/executables/ls'
+      end
+
+      it 'raises an error' do
+        expect { index.create(options) }.to raise_error('Filename already exists')
+      end
+    end
+
+    context 'when content is in base64' do
+      before do
+        options[:content] = Base64.encode64(options[:content])
+        options[:encoding] = 'base64'
+      end
+
+      it 'decodes base64' do
+        index.create(options)
+
+        entry = index.get(options[:file_path])
+        expect(repository.lookup(entry[:oid]).content).to eq(Base64.decode64(options[:content]))
+      end
+    end
+
+    context 'when content contains CRLF' do
+      before do
+        repository.autocrlf = :input
+        options[:content] = "Hello,\r\nWorld"
+      end
+
+      it 'converts to LF' do
+        index.create(options)
+
+        entry = index.get(options[:file_path])
+        expect(repository.lookup(entry[:oid]).content).to eq("Hello,\nWorld")
+      end
+    end
+  end
+
+  describe '#create_dir' do
+    let(:options) do
+      {
+        file_path: 'newdir'
+      }
+    end
+
+    context 'when no file or dir at that path exists' do
+      it 'creates the dir in the index' do
+        index.create_dir(options)
+
+        entry = index.get(options[:file_path] + '/.gitkeep')
+
+        expect(entry).not_to be_nil
+      end
+    end
+
+    context 'when a file at that path exists' do
+      before do
+        options[:file_path] = 'files/executables/ls'
+      end
+
+      it 'raises an error' do
+        expect { index.create_dir(options) }.to raise_error('Directory already exists as a file')
+      end
+    end
+
+    context 'when a directory at that path exists' do
+      before do
+        options[:file_path] = 'files/executables'
+      end
+
+      it 'raises an error' do
+        expect { index.create_dir(options) }.to raise_error('Directory already exists')
+      end
+    end
+  end
+
+  describe '#update' do
+    let(:options) do
+      {
+        content: 'Lorem ipsum...',
+        file_path: 'README.md'
+      }
+    end
+
+    context 'when no file at that path exists' do
+      before do
+        options[:file_path] = 'documents/story.txt'
+      end
+
+      it 'raises an error' do
+        expect { index.update(options) }.to raise_error("File doesn't exist")
+      end
+    end
+
+    context 'when a file at that path exists' do
+      it 'updates the file in the index' do
+        index.update(options)
+
+        entry = index.get(options[:file_path])
+
+        expect(repository.lookup(entry[:oid]).content).to eq(options[:content])
+      end
+
+      it 'preserves file mode' do
+        options[:file_path] = 'files/executables/ls'
+
+        index.update(options)
+
+        entry = index.get(options[:file_path])
+
+        expect(entry[:mode]).to eq(0100755)
+      end
+    end
+  end
+
+  describe '#move' do
+    let(:options) do
+      {
+        content: 'Lorem ipsum...',
+        previous_path: 'README.md',
+        file_path: 'NEWREADME.md'
+      }
+    end
+
+    context 'when no file at that path exists' do
+      it 'raises an error' do
+        options[:previous_path] = 'documents/story.txt'
+
+        expect { index.move(options) }.to raise_error("File doesn't exist")
+      end
+    end
+
+    context 'when a file at that path exists' do
+      it 'removes the old file in the index' do
+        index.move(options)
+
+        entry = index.get(options[:previous_path])
+
+        expect(entry).to be_nil
+      end
+
+      it 'creates the new file in the index' do
+        index.move(options)
+
+        entry = index.get(options[:file_path])
+
+        expect(entry).not_to be_nil
+        expect(repository.lookup(entry[:oid]).content).to eq(options[:content])
+      end
+
+      it 'preserves file mode' do
+        options[:previous_path] = 'files/executables/ls'
+
+        index.move(options)
+
+        entry = index.get(options[:file_path])
+
+        expect(entry[:mode]).to eq(0100755)
+      end
+    end
+  end
+
+  describe '#delete' do
+    let(:options) do
+      {
+        file_path: 'README.md'
+      }
+    end
+
+    context 'when no file at that path exists' do
+      before do
+        options[:file_path] = 'documents/story.txt'
+      end
+
+      it 'raises an error' do
+        expect { index.delete(options) }.to raise_error("File doesn't exist")
+      end
+    end
+
+    context 'when a file at that path exists' do
+      it 'removes the file in the index' do
+        index.delete(options)
+
+        entry = index.get(options[:file_path])
+
+        expect(entry).to be_nil
+      end
+    end
+  end
+end