public async Task CreateAlloy_Throws_WhenCompositionNotUnique()
{
#region ARRANGE
var materialsService = new MaterialsService(inMemoryDbContext);
var composition = new Dictionary <string, double>()
{
{ "Ag", 44.6 }, { "Al", 55.4 }
};
#endregion
#region ACT
var expectedException = new DuplicateObjectException(string.Empty, string.Empty);
try
{
var alloy = await materialsService.CreateAlloyAsync(composition);
}
catch (Exception exception)
{
expectedException = exception as DuplicateObjectException;
}
#endregion
#region ASSERT
Assert.IsAssignableFrom <Exception>(expectedException);
Assert.NotNull(expectedException);
Assert.IsType <DuplicateObjectException>(expectedException);
#endregion
}
public async Task CreateAlloy_RetunrsNewAlloy_WithCorrectProperties_WhenCompositionIsUnique()
{
#region ARRANGE
var materialsService = new MaterialsService(inMemoryDbContext);
var composition = new Dictionary <string, double>()
{
{ "Fe", 74.5 }, { "Ti", 25.5 }
};
decimal researchCost = 2345.6M;
#endregion
#region ACT
var alloy = await materialsService.CreateAlloyAsync(composition, researchCost);
#endregion
#region ASSERT
Assert.NotNull(alloy);
Assert.Equal("Fe74.5Ti25.5", alloy.Composition);
Assert.Equal(researchCost, alloy.ResearchCost);
#endregion
}