Trains

Trains

SonarCloud

How to build

• Install .NET Core 1.1
• Restore the packages (required once). In the solution folder, where Trains.sln is, folder execute the followin command:

dotnet restore

• In the project folder, where Trains.csproj is, execute the following command:

dotnet build -c release

How to run

• Running using the project file. In the project folder, where the Trains.csproj is, execute the following command:

dotnet run input.txt

• Running using the binary. Execute the following command with the binary file:

dotnet Trains.dll input.txt

How to test

• Executing unit tests. In the unit tests project folder, where the UnitTests.csproj is, execute the following

dotnet test

Architecture

The solution is composed of:

• Models
  • Town : Information about a town.
  • Route : Information about a route between towns.
  • Graph : Information about towns and routes.
• Services
  • GraphParser : Responsible for reading the input file to create the graph.
  • GraphFactory: Responsible for creating the appropriate graph.
  • GraphWalker : Responsible to traverse the graph to perfom the calculation.
• Interfaces : Services are implemented using interfaces to be extensible.

The main program is composed of:

• Composition Root: where all modules are put together.
• Execution of the graph parser.
• Execution of the graph walker to answer each one of the questions proposed.

Highlights:

• Extensibility: main modules are provided with an interface so it can be replaced in the composition root for evolution.

GitHub Project Repository