Set up temporary repository only once

.rspec

@@ -1,3 +1,2 @@
 --color
 --require spec_helper
---tag ~repository

README.md

@@ -68,15 +68,6 @@ The `evaluate` command analyzes the given microservices architecture, and evalua
 ```bash
 $ mosaik evaluate --help
 ```
-## Development and Testing
-
-Some test make use of a simulated git repository. If you want to use this repository for development, run the following command:
-
-```bash
-$ rspec spec/mosaik/repository_spec.rb --tag repository
-```
-
-The simulated git repository will be copied to `tmp/repository` and can be used for development.
 
 ## Releasing
 

spec/mosaik/extractors/evolution_spec.rb

@@ -29,9 +29,7 @@
   end
 
   describe "logical coupling" do
-    let(:options) { { directory:, limit: 100, logical: 1, contributor: 0 } }
-
-    include_context "with a git repository"
+    let(:options) { { directory: "tmp/repository", limit: 100, logical: 1, contributor: 0 } }
 
     it "constructs a logical coupling graph" do
       extractor.call
@@ -48,9 +46,7 @@
   end
 
   describe "contributor coupling" do
-    let(:options) { { directory:, limit: 100, logical: 0, contributor: 1 } }
-
-    include_context "with a git repository"
+    let(:options) { { directory: "tmp/repository", limit: 100, logical: 0, contributor: 1 } }
 
     it "constructs a contributor coupling graph" do
       extractor.call

spec/mosaik/extractors/structural_spec.rb

@@ -23,8 +23,6 @@
   describe "structural coupling" do
     let(:options) { { structural: 1 } }
 
-    include_context "with a git repository"
-
     it "constructs a logical coupling graph" do
       extractor.call
 

spec/support/setup_repository.rb

@@ -0,0 +1,79 @@
+# frozen_string_literal: true
+
+# Relative path to the repository
+DIRECTORY = "tmp/repository"
+
+# Committers
+john = "John Doe <[email protected]>"
+jane = "Jane Doe <[email protected]>"
+joey = "Joey Doe <[email protected]>"
+
+# Cleanup the temporary repository directory
+FileUtils.remove_entry(DIRECTORY)
+
+# Initialize the repository
+GIT = Git.init(DIRECTORY)
+
+# Set up committer configuration
+GIT.config("user.name", "John Doe")
+GIT.config("user.email", "[email protected]")
+
+def commit(author, **files_with_content)
+  # Write the files with content
+  files_with_content.each do |file, content|
+    FileUtils.mkdir_p(File.join(DIRECTORY, File.dirname(file)))
+    File.write(File.join(DIRECTORY, file), content)
+  end
+
+  # Add and commit the files
+  GIT.add
+  GIT.commit("Add #{files_with_content.keys.join(', ')}", author:)
+end
+
+# Setup the repository with initial commit
+commit john,
+       "README.md" => "# Test Repository"
+
+# Add MOSAIK configuration
+commit john,
+       "mosaik.yml" => File.read(MOSAIK.root.join("config/mosaik.yml"))
+
+# Add application structure
+commit john,
+       "lib/app.rb" => "class App; end"
+
+# Add classes
+commit john,
+       "lib/app/foo.rb" => "class App::Foo; end",
+       "lib/app/bar.rb" => "class App::Bar; end"
+
+commit jane,
+       "lib/app/foo.rb" => "class App::Foo; def initialize; end; end",
+       "lib/app/bat.rb" => "class App::Bat; end"
+
+commit john,
+       "lib/app/foo.rb" => "class App::Foo; end",
+       "lib/app/bak.rb" => "class App::Bak; end"
+
+commit jane,
+       "lib/app/bat.rb" => "class App::Bat; def initialize; end; end",
+       "lib/app/baz.rb" => "class App::Baz; end"
+
+commit john,
+       "lib/app/bat.rb" => "class App::Bat; end",
+       "lib/app/baz.rb" => "class App::Baz; def initialize; end; end"
+
+commit joey,
+       "lib/app/bat.rb" => "class App::Bat; def initialize; end; end",
+       "lib/app/baz.rb" => "class App::Baz; end"
+
+RSpec.configure do |config|
+  config.before do
+    configuration = MOSAIK::Configuration.from(File.join(DIRECTORY, "mosaik.yml"))
+
+    # Mock the configuration
+    allow(MOSAIK)
+      .to receive(:configuration)
+      .and_return configuration
+  end
+end