public void Test_GetPostcodes_Throws_Exception_If_File_Cannot_Be_Found()
{
string fullPath = System.Reflection.Assembly.GetAssembly(typeof(PostcodeFileImporterTests)).Location;
string directory = Path.GetDirectoryName(fullPath);
var filePath = $"{directory}/assets/non-existant-file.txt";
var target = new PostcodeFileImporter(filePath);
Assert.Throws <FileNotFoundException>(() => target.GetPostcodes());
}
public void Test_GetPostcodes_Returns_Empty_Collection_When_Importing_From_An_Empty_File()
{
// arrange
string fullPath = System.Reflection.Assembly.GetAssembly(typeof(PostcodeFileImporterTests)).Location;
string directory = Path.GetDirectoryName(fullPath);
var filePath = $"{directory}/assets/test-no-valid-postcodes.txt";
var target = new PostcodeFileImporter(filePath);
var expected = new List <string>();
// act
var result = target.GetPostcodes();
// assert
Assert.Equal(result, expected);
}
public void Test_GetPostcodes_Returns_Collection_Of_Postcodes_When_Importing_From_A_File_With_Valid_And_Invalid_Postcodes()
{
// arrange
string fullPath = System.Reflection.Assembly.GetAssembly(typeof(PostcodeFileImporterTests)).Location;
string directory = Path.GetDirectoryName(fullPath);
var filePath = $"{directory}/assets/test-some-valid-postcodes.txt";
var target = new PostcodeFileImporter(filePath);
var expected = new List <string> {
"MK1 2AB", "MK2 3CD"
};
// act
var result = target.GetPostcodes();
// assert
Assert.Equal(result, expected);
}