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.editorconfig
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.editorconfig
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.gitignore
vendored
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.gitignore
vendored
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|
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@ -0,0 +1,583 @@
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|||
# Created by https://www.toptal.com/developers/gitignore/api/csharp,visualstudio
|
||||
# Edit at https://www.toptal.com/developers/gitignore?templates=csharp,visualstudio
|
||||
|
||||
### Csharp ###
|
||||
## Ignore Visual Studio temporary files, build results, and
|
||||
## files generated by popular Visual Studio add-ons.
|
||||
##
|
||||
## Get latest from https://github.com/github/gitignore/blob/main/VisualStudio.gitignore
|
||||
|
||||
# User-specific files
|
||||
*.rsuser
|
||||
*.suo
|
||||
*.user
|
||||
*.userosscache
|
||||
*.sln.docstates
|
||||
|
||||
# User-specific files (MonoDevelop/Xamarin Studio)
|
||||
*.userprefs
|
||||
|
||||
# Mono auto generated files
|
||||
mono_crash.*
|
||||
|
||||
# Build results
|
||||
[Dd]ebug/
|
||||
[Dd]ebugPublic/
|
||||
[Rr]elease/
|
||||
[Rr]eleases/
|
||||
x64/
|
||||
x86/
|
||||
[Ww][Ii][Nn]32/
|
||||
[Aa][Rr][Mm]/
|
||||
[Aa][Rr][Mm]64/
|
||||
bld/
|
||||
[Bb]in/
|
||||
[Oo]bj/
|
||||
[Ll]og/
|
||||
[Ll]ogs/
|
||||
|
||||
# Visual Studio 2015/2017 cache/options directory
|
||||
.vs/
|
||||
# Uncomment if you have tasks that create the project's static files in wwwroot
|
||||
#wwwroot/
|
||||
|
||||
# Visual Studio 2017 auto generated files
|
||||
Generated\ Files/
|
||||
|
||||
# MSTest test Results
|
||||
[Tt]est[Rr]esult*/
|
||||
[Bb]uild[Ll]og.*
|
||||
|
||||
# NUnit
|
||||
*.VisualState.xml
|
||||
TestResult.xml
|
||||
nunit-*.xml
|
||||
|
||||
# Build Results of an ATL Project
|
||||
[Dd]ebugPS/
|
||||
[Rr]eleasePS/
|
||||
dlldata.c
|
||||
|
||||
# Benchmark Results
|
||||
BenchmarkDotNet.Artifacts/
|
||||
|
||||
# .NET Core
|
||||
project.lock.json
|
||||
project.fragment.lock.json
|
||||
artifacts/
|
||||
|
||||
# ASP.NET Scaffolding
|
||||
ScaffoldingReadMe.txt
|
||||
|
||||
# StyleCop
|
||||
StyleCopReport.xml
|
||||
|
||||
# Files built by Visual Studio
|
||||
*_i.c
|
||||
*_p.c
|
||||
*_h.h
|
||||
*.ilk
|
||||
*.meta
|
||||
*.obj
|
||||
*.iobj
|
||||
*.pch
|
||||
*.pdb
|
||||
*.ipdb
|
||||
*.pgc
|
||||
*.pgd
|
||||
*.rsp
|
||||
*.sbr
|
||||
*.tlb
|
||||
*.tli
|
||||
*.tlh
|
||||
*.tmp
|
||||
*.tmp_proj
|
||||
*_wpftmp.csproj
|
||||
*.log
|
||||
*.tlog
|
||||
*.vspscc
|
||||
*.vssscc
|
||||
.builds
|
||||
*.pidb
|
||||
*.svclog
|
||||
*.scc
|
||||
|
||||
# Chutzpah Test files
|
||||
_Chutzpah*
|
||||
|
||||
# Visual C++ cache files
|
||||
ipch/
|
||||
*.aps
|
||||
*.ncb
|
||||
*.opendb
|
||||
*.opensdf
|
||||
*.sdf
|
||||
*.cachefile
|
||||
*.VC.db
|
||||
*.VC.VC.opendb
|
||||
|
||||
# Visual Studio profiler
|
||||
*.psess
|
||||
*.vsp
|
||||
*.vspx
|
||||
*.sap
|
||||
|
||||
# Visual Studio Trace Files
|
||||
*.e2e
|
||||
|
||||
# TFS 2012 Local Workspace
|
||||
$tf/
|
||||
|
||||
# Guidance Automation Toolkit
|
||||
*.gpState
|
||||
|
||||
# ReSharper is a .NET coding add-in
|
||||
_ReSharper*/
|
||||
*.[Rr]e[Ss]harper
|
||||
*.DotSettings.user
|
||||
|
||||
# TeamCity is a build add-in
|
||||
_TeamCity*
|
||||
|
||||
# DotCover is a Code Coverage Tool
|
||||
*.dotCover
|
||||
|
||||
# AxoCover is a Code Coverage Tool
|
||||
.axoCover/*
|
||||
!.axoCover/settings.json
|
||||
|
||||
# Coverlet is a free, cross platform Code Coverage Tool
|
||||
coverage*.json
|
||||
coverage*.xml
|
||||
coverage*.info
|
||||
|
||||
# Visual Studio code coverage results
|
||||
*.coverage
|
||||
*.coveragexml
|
||||
|
||||
# NCrunch
|
||||
_NCrunch_*
|
||||
.*crunch*.local.xml
|
||||
nCrunchTemp_*
|
||||
|
||||
# MightyMoose
|
||||
*.mm.*
|
||||
AutoTest.Net/
|
||||
|
||||
# Web workbench (sass)
|
||||
.sass-cache/
|
||||
|
||||
# Installshield output folder
|
||||
[Ee]xpress/
|
||||
|
||||
# DocProject is a documentation generator add-in
|
||||
DocProject/buildhelp/
|
||||
DocProject/Help/*.HxT
|
||||
DocProject/Help/*.HxC
|
||||
DocProject/Help/*.hhc
|
||||
DocProject/Help/*.hhk
|
||||
DocProject/Help/*.hhp
|
||||
DocProject/Help/Html2
|
||||
DocProject/Help/html
|
||||
|
||||
# Click-Once directory
|
||||
publish/
|
||||
|
||||
# Publish Web Output
|
||||
*.[Pp]ublish.xml
|
||||
*.azurePubxml
|
||||
# Note: Comment the next line if you want to checkin your web deploy settings,
|
||||
# but database connection strings (with potential passwords) will be unencrypted
|
||||
*.pubxml
|
||||
*.publishproj
|
||||
|
||||
# Microsoft Azure Web App publish settings. Comment the next line if you want to
|
||||
# checkin your Azure Web App publish settings, but sensitive information contained
|
||||
# in these scripts will be unencrypted
|
||||
PublishScripts/
|
||||
|
||||
# NuGet Packages
|
||||
*.nupkg
|
||||
# NuGet Symbol Packages
|
||||
*.snupkg
|
||||
# The packages folder can be ignored because of Package Restore
|
||||
**/[Pp]ackages/*
|
||||
# except build/, which is used as an MSBuild target.
|
||||
!**/[Pp]ackages/build/
|
||||
# Uncomment if necessary however generally it will be regenerated when needed
|
||||
#!**/[Pp]ackages/repositories.config
|
||||
# NuGet v3's project.json files produces more ignorable files
|
||||
*.nuget.props
|
||||
*.nuget.targets
|
||||
|
||||
# Microsoft Azure Build Output
|
||||
csx/
|
||||
*.build.csdef
|
||||
|
||||
# Microsoft Azure Emulator
|
||||
ecf/
|
||||
rcf/
|
||||
|
||||
# Windows Store app package directories and files
|
||||
AppPackages/
|
||||
BundleArtifacts/
|
||||
Package.StoreAssociation.xml
|
||||
_pkginfo.txt
|
||||
*.appx
|
||||
*.appxbundle
|
||||
*.appxupload
|
||||
|
||||
# Visual Studio cache files
|
||||
# files ending in .cache can be ignored
|
||||
*.[Cc]ache
|
||||
# but keep track of directories ending in .cache
|
||||
!?*.[Cc]ache/
|
||||
|
||||
# Others
|
||||
ClientBin/
|
||||
~$*
|
||||
*~
|
||||
*.dbmdl
|
||||
*.dbproj.schemaview
|
||||
*.jfm
|
||||
*.pfx
|
||||
*.publishsettings
|
||||
orleans.codegen.cs
|
||||
|
||||
# Including strong name files can present a security risk
|
||||
# (https://github.com/github/gitignore/pull/2483#issue-259490424)
|
||||
#*.snk
|
||||
|
||||
# Since there are multiple workflows, uncomment next line to ignore bower_components
|
||||
# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
|
||||
#bower_components/
|
||||
|
||||
# RIA/Silverlight projects
|
||||
Generated_Code/
|
||||
|
||||
# Backup & report files from converting an old project file
|
||||
# to a newer Visual Studio version. Backup files are not needed,
|
||||
# because we have git ;-)
|
||||
_UpgradeReport_Files/
|
||||
Backup*/
|
||||
UpgradeLog*.XML
|
||||
UpgradeLog*.htm
|
||||
ServiceFabricBackup/
|
||||
*.rptproj.bak
|
||||
|
||||
# SQL Server files
|
||||
*.mdf
|
||||
*.ldf
|
||||
*.ndf
|
||||
|
||||
# Business Intelligence projects
|
||||
*.rdl.data
|
||||
*.bim.layout
|
||||
*.bim_*.settings
|
||||
*.rptproj.rsuser
|
||||
*- [Bb]ackup.rdl
|
||||
*- [Bb]ackup ([0-9]).rdl
|
||||
*- [Bb]ackup ([0-9][0-9]).rdl
|
||||
|
||||
# Microsoft Fakes
|
||||
FakesAssemblies/
|
||||
|
||||
# GhostDoc plugin setting file
|
||||
*.GhostDoc.xml
|
||||
|
||||
# Node.js Tools for Visual Studio
|
||||
.ntvs_analysis.dat
|
||||
node_modules/
|
||||
|
||||
# Visual Studio 6 build log
|
||||
*.plg
|
||||
|
||||
# Visual Studio 6 workspace options file
|
||||
*.opt
|
||||
|
||||
# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
|
||||
*.vbw
|
||||
|
||||
# Visual Studio 6 auto-generated project file (contains which files were open etc.)
|
||||
*.vbp
|
||||
|
||||
# Visual Studio 6 workspace and project file (working project files containing files to include in project)
|
||||
*.dsw
|
||||
*.dsp
|
||||
|
||||
# Visual Studio 6 technical files
|
||||
|
||||
# Visual Studio LightSwitch build output
|
||||
**/*.HTMLClient/GeneratedArtifacts
|
||||
**/*.DesktopClient/GeneratedArtifacts
|
||||
**/*.DesktopClient/ModelManifest.xml
|
||||
**/*.Server/GeneratedArtifacts
|
||||
**/*.Server/ModelManifest.xml
|
||||
_Pvt_Extensions
|
||||
|
||||
# Paket dependency manager
|
||||
.paket/paket.exe
|
||||
paket-files/
|
||||
|
||||
# FAKE - F# Make
|
||||
.fake/
|
||||
|
||||
# CodeRush personal settings
|
||||
.cr/personal
|
||||
|
||||
# Python Tools for Visual Studio (PTVS)
|
||||
__pycache__/
|
||||
*.pyc
|
||||
|
||||
# Cake - Uncomment if you are using it
|
||||
# tools/**
|
||||
# !tools/packages.config
|
||||
|
||||
# Tabs Studio
|
||||
*.tss
|
||||
|
||||
# Telerik's JustMock configuration file
|
||||
*.jmconfig
|
||||
|
||||
# BizTalk build output
|
||||
*.btp.cs
|
||||
*.btm.cs
|
||||
*.odx.cs
|
||||
*.xsd.cs
|
||||
|
||||
# OpenCover UI analysis results
|
||||
OpenCover/
|
||||
|
||||
# Azure Stream Analytics local run output
|
||||
ASALocalRun/
|
||||
|
||||
# MSBuild Binary and Structured Log
|
||||
*.binlog
|
||||
|
||||
# NVidia Nsight GPU debugger configuration file
|
||||
*.nvuser
|
||||
|
||||
# MFractors (Xamarin productivity tool) working folder
|
||||
.mfractor/
|
||||
|
||||
# Local History for Visual Studio
|
||||
.localhistory/
|
||||
|
||||
# Visual Studio History (VSHistory) files
|
||||
.vshistory/
|
||||
|
||||
# BeatPulse healthcheck temp database
|
||||
healthchecksdb
|
||||
|
||||
# Backup folder for Package Reference Convert tool in Visual Studio 2017
|
||||
MigrationBackup/
|
||||
|
||||
# Ionide (cross platform F# VS Code tools) working folder
|
||||
.ionide/
|
||||
|
||||
# Fody - auto-generated XML schema
|
||||
FodyWeavers.xsd
|
||||
|
||||
# VS Code files for those working on multiple tools
|
||||
.vscode/*
|
||||
!.vscode/settings.json
|
||||
!.vscode/tasks.json
|
||||
!.vscode/launch.json
|
||||
!.vscode/extensions.json
|
||||
*.code-workspace
|
||||
|
||||
# Local History for Visual Studio Code
|
||||
.history/
|
||||
|
||||
# Windows Installer files from build outputs
|
||||
*.cab
|
||||
*.msi
|
||||
*.msix
|
||||
*.msm
|
||||
*.msp
|
||||
|
||||
# JetBrains Rider
|
||||
*.sln.iml
|
||||
|
||||
### VisualStudio ###
|
||||
|
||||
# User-specific files
|
||||
|
||||
# User-specific files (MonoDevelop/Xamarin Studio)
|
||||
|
||||
# Mono auto generated files
|
||||
|
||||
# Build results
|
||||
|
||||
# Visual Studio 2015/2017 cache/options directory
|
||||
# Uncomment if you have tasks that create the project's static files in wwwroot
|
||||
|
||||
# Visual Studio 2017 auto generated files
|
||||
|
||||
# MSTest test Results
|
||||
|
||||
# NUnit
|
||||
|
||||
# Build Results of an ATL Project
|
||||
|
||||
# Benchmark Results
|
||||
|
||||
# .NET Core
|
||||
|
||||
# ASP.NET Scaffolding
|
||||
|
||||
# StyleCop
|
||||
|
||||
# Files built by Visual Studio
|
||||
|
||||
# Chutzpah Test files
|
||||
|
||||
# Visual C++ cache files
|
||||
|
||||
# Visual Studio profiler
|
||||
|
||||
# Visual Studio Trace Files
|
||||
|
||||
# TFS 2012 Local Workspace
|
||||
|
||||
# Guidance Automation Toolkit
|
||||
|
||||
# ReSharper is a .NET coding add-in
|
||||
|
||||
# TeamCity is a build add-in
|
||||
|
||||
# DotCover is a Code Coverage Tool
|
||||
|
||||
# AxoCover is a Code Coverage Tool
|
||||
|
||||
# Coverlet is a free, cross platform Code Coverage Tool
|
||||
|
||||
# Visual Studio code coverage results
|
||||
|
||||
# NCrunch
|
||||
|
||||
# MightyMoose
|
||||
|
||||
# Web workbench (sass)
|
||||
|
||||
# Installshield output folder
|
||||
|
||||
# DocProject is a documentation generator add-in
|
||||
|
||||
# Click-Once directory
|
||||
|
||||
# Publish Web Output
|
||||
# Note: Comment the next line if you want to checkin your web deploy settings,
|
||||
# but database connection strings (with potential passwords) will be unencrypted
|
||||
|
||||
# Microsoft Azure Web App publish settings. Comment the next line if you want to
|
||||
# checkin your Azure Web App publish settings, but sensitive information contained
|
||||
# in these scripts will be unencrypted
|
||||
|
||||
# NuGet Packages
|
||||
# NuGet Symbol Packages
|
||||
# The packages folder can be ignored because of Package Restore
|
||||
# except build/, which is used as an MSBuild target.
|
||||
# Uncomment if necessary however generally it will be regenerated when needed
|
||||
# NuGet v3's project.json files produces more ignorable files
|
||||
|
||||
# Microsoft Azure Build Output
|
||||
|
||||
# Microsoft Azure Emulator
|
||||
|
||||
# Windows Store app package directories and files
|
||||
|
||||
# Visual Studio cache files
|
||||
# files ending in .cache can be ignored
|
||||
# but keep track of directories ending in .cache
|
||||
|
||||
# Others
|
||||
|
||||
# Including strong name files can present a security risk
|
||||
# (https://github.com/github/gitignore/pull/2483#issue-259490424)
|
||||
|
||||
# Since there are multiple workflows, uncomment next line to ignore bower_components
|
||||
# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
|
||||
|
||||
# RIA/Silverlight projects
|
||||
|
||||
# Backup & report files from converting an old project file
|
||||
# to a newer Visual Studio version. Backup files are not needed,
|
||||
# because we have git ;-)
|
||||
|
||||
# SQL Server files
|
||||
|
||||
# Business Intelligence projects
|
||||
|
||||
# Microsoft Fakes
|
||||
|
||||
# GhostDoc plugin setting file
|
||||
|
||||
# Node.js Tools for Visual Studio
|
||||
|
||||
# Visual Studio 6 build log
|
||||
|
||||
# Visual Studio 6 workspace options file
|
||||
|
||||
# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
|
||||
|
||||
# Visual Studio 6 auto-generated project file (contains which files were open etc.)
|
||||
|
||||
# Visual Studio 6 workspace and project file (working project files containing files to include in project)
|
||||
|
||||
# Visual Studio 6 technical files
|
||||
|
||||
# Visual Studio LightSwitch build output
|
||||
|
||||
# Paket dependency manager
|
||||
|
||||
# FAKE - F# Make
|
||||
|
||||
# CodeRush personal settings
|
||||
|
||||
# Python Tools for Visual Studio (PTVS)
|
||||
|
||||
# Cake - Uncomment if you are using it
|
||||
# tools/**
|
||||
# !tools/packages.config
|
||||
|
||||
# Tabs Studio
|
||||
|
||||
# Telerik's JustMock configuration file
|
||||
|
||||
# BizTalk build output
|
||||
|
||||
# OpenCover UI analysis results
|
||||
|
||||
# Azure Stream Analytics local run output
|
||||
|
||||
# MSBuild Binary and Structured Log
|
||||
|
||||
# NVidia Nsight GPU debugger configuration file
|
||||
|
||||
# MFractors (Xamarin productivity tool) working folder
|
||||
|
||||
# Local History for Visual Studio
|
||||
|
||||
# Visual Studio History (VSHistory) files
|
||||
|
||||
# BeatPulse healthcheck temp database
|
||||
|
||||
# Backup folder for Package Reference Convert tool in Visual Studio 2017
|
||||
|
||||
# Ionide (cross platform F# VS Code tools) working folder
|
||||
|
||||
# Fody - auto-generated XML schema
|
||||
|
||||
# VS Code files for those working on multiple tools
|
||||
|
||||
# Local History for Visual Studio Code
|
||||
|
||||
# Windows Installer files from build outputs
|
||||
|
||||
# JetBrains Rider
|
||||
|
||||
### VisualStudio Patch ###
|
||||
# Additional files built by Visual Studio
|
||||
|
||||
# End of https://www.toptal.com/developers/gitignore/api/csharp,visualstudio
|
||||
192
Supermarket.Test/FoodTests.cs
Normal file
192
Supermarket.Test/FoodTests.cs
Normal file
|
|
@ -0,0 +1,192 @@
|
|||
namespace Supermarket.Test;
|
||||
|
||||
public sealed class FoodTests
|
||||
{
|
||||
private const string Barcode = "12345670";
|
||||
|
||||
[Fact]
|
||||
public void Construction_Simple()
|
||||
{
|
||||
const string Name = "Fischstäbchen";
|
||||
const int Quantity = 4;
|
||||
|
||||
var fishStick = new Food(Name, Barcode, Quantity,
|
||||
AllergenType.A, AllergenType.C, AllergenType.D);
|
||||
|
||||
fishStick.ProductName.Should().Be(Name);
|
||||
fishStick.Barcode.Should().Be(Barcode);
|
||||
fishStick.Quantity.Should().Be(Quantity);
|
||||
fishStick.Allergens.Should()
|
||||
.NotBeNull()
|
||||
.And.HaveCount(3)
|
||||
.And.ContainInOrder(AllergenType.A, AllergenType.C, AllergenType.D);
|
||||
fishStick.Should().BeAssignableTo<Product>("a food item is a product");
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void Construction_DuplicateAllergens()
|
||||
{
|
||||
var fishStick = new Food("Fischstäbchen", Barcode, 18,
|
||||
AllergenType.A, AllergenType.A, AllergenType.C, AllergenType.D);
|
||||
|
||||
fishStick.Allergens.Should()
|
||||
.NotBeNull()
|
||||
.And.HaveCount(3, "duplicates are not added")
|
||||
.And.ContainInOrder(AllergenType.A, AllergenType.C, AllergenType.D);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void Construction_AllergensInWrongOrder()
|
||||
{
|
||||
var fishStick = new Food("Fischstäbchen", Barcode, 18,
|
||||
AllergenType.C, AllergenType.D, AllergenType.A);
|
||||
|
||||
fishStick.Allergens.Should()
|
||||
.NotBeNull()
|
||||
.And.HaveCount(3)
|
||||
.And.ContainInOrder([AllergenType.A, AllergenType.C, AllergenType.D],
|
||||
"allergens are always stored in order");
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void Construction_NoAllergens()
|
||||
{
|
||||
const string Name = "Steak";
|
||||
const int Quantity = 11;
|
||||
|
||||
CheckSteak(new Food(Name, Barcode, Quantity));
|
||||
CheckSteak(new Food(Name, Barcode, Quantity, Array.Empty<AllergenType>()));
|
||||
|
||||
return;
|
||||
|
||||
static void CheckSteak(Food steak)
|
||||
{
|
||||
steak.ProductName.Should().Be(Name);
|
||||
steak.Barcode.Should().Be(Barcode);
|
||||
steak.Quantity.Should().Be(Quantity);
|
||||
steak.Allergens.Should()
|
||||
.NotBeNull("an empty list is always created")
|
||||
.And.BeEmpty();
|
||||
}
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void ContainsAnyAllergen()
|
||||
{
|
||||
var cake = new Food("Torte", Barcode, 5,
|
||||
AllergenType.A, AllergenType.C, AllergenType.F, AllergenType.G);
|
||||
|
||||
cake.ContainsAnyAllergen(AllergenType.A).Should().BeTrue("allergen is contained");
|
||||
cake.ContainsAnyAllergen(AllergenType.F).Should().BeTrue("allergen is contained");
|
||||
cake.ContainsAnyAllergen(AllergenType.C, AllergenType.G)
|
||||
.Should().BeTrue("all allergens are contained");
|
||||
cake.ContainsAnyAllergen(AllergenType.F, AllergenType.C, AllergenType.A, AllergenType.G)
|
||||
.Should().BeTrue("all allergens are contained, order is irrelevant");
|
||||
|
||||
cake.ContainsAnyAllergen(AllergenType.B).Should().BeFalse("allergen is not contained");
|
||||
cake.ContainsAnyAllergen(AllergenType.B, AllergenType.M)
|
||||
.Should().BeFalse("none of the allergens are contained");
|
||||
|
||||
cake.ContainsAnyAllergen(AllergenType.B, AllergenType.F)
|
||||
.Should().BeTrue("some of the allergens are contained");
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void AddAllergen_Simple()
|
||||
{
|
||||
var cake = new Food("Torte", Barcode, 5);
|
||||
|
||||
cake.AddAllergen(AllergenType.B).Should().BeTrue("can be added");
|
||||
cake.Allergens.Should()
|
||||
.NotBeNull()
|
||||
.And.HaveCount(1)
|
||||
.And.ContainInOrder(AllergenType.B);
|
||||
|
||||
cake.AddAllergen(AllergenType.A).Should().BeTrue("can be added");
|
||||
cake.Allergens.Should()
|
||||
.NotBeNull()
|
||||
.And.HaveCount(2)
|
||||
.And.ContainInOrder([AllergenType.A, AllergenType.B], "insert happens in order");
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void AddAllergen_AlreadyContained()
|
||||
{
|
||||
var cake = new Food("Torte", Barcode, 5);
|
||||
|
||||
cake.AddAllergen(AllergenType.A).Should().BeTrue("can be added");
|
||||
cake.Allergens.Should()
|
||||
.NotBeNull()
|
||||
.And.HaveCount(1)
|
||||
.And.ContainInOrder(AllergenType.A);
|
||||
|
||||
cake.AddAllergen(AllergenType.A).Should().BeFalse("already in the list");
|
||||
cake.Allergens.Should()
|
||||
.NotBeNull()
|
||||
.And.HaveCount(1, "unchanged")
|
||||
.And.ContainInOrder(AllergenType.A);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void RemoveAllergen_Simple()
|
||||
{
|
||||
var cake = new Food("Torte", Barcode, 5, AllergenType.A, AllergenType.B);
|
||||
|
||||
cake.RemoveAllergen(AllergenType.A).Should().BeTrue("can be removed");
|
||||
cake.Allergens.Should()
|
||||
.NotBeNull()
|
||||
.And.HaveCount(1, "decreased")
|
||||
.And.ContainInOrder(AllergenType.B);
|
||||
|
||||
cake.RemoveAllergen(AllergenType.B).Should().BeTrue("can be removed");
|
||||
cake.Allergens.Should()
|
||||
.NotBeNull()
|
||||
.And.BeEmpty("now empty");
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void RemoveAllergen_NotContained()
|
||||
{
|
||||
var cake = new Food("Torte", Barcode, 5,
|
||||
AllergenType.A, AllergenType.B, AllergenType.C);
|
||||
|
||||
cake.RemoveAllergen(AllergenType.B).Should().BeTrue("can be removed");
|
||||
cake.Allergens.Should()
|
||||
.NotBeNull()
|
||||
.And.HaveCount(2, "one removed")
|
||||
.And.ContainInOrder(AllergenType.A, AllergenType.C);
|
||||
|
||||
cake.RemoveAllergen(AllergenType.B).Should().BeFalse("already removed");
|
||||
cake.Allergens.Should()
|
||||
.NotBeNull()
|
||||
.And.HaveCount(2, "unchanged")
|
||||
.And.ContainInOrder(AllergenType.A, AllergenType.C);
|
||||
|
||||
cake.RemoveAllergen(AllergenType.F).Should().BeFalse("was never contained");
|
||||
cake.Allergens.Should()
|
||||
.NotBeNull()
|
||||
.And.HaveCount(2, "unchanged")
|
||||
.And.ContainInOrder(AllergenType.A, AllergenType.C);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void GetCsvHeader()
|
||||
{
|
||||
var burger = new Food("Burger", Barcode, 2,
|
||||
AllergenType.A, AllergenType.F, AllergenType.M);
|
||||
|
||||
burger.GetCsvHeader().Should().Be("Barcode;ProductName;Quantity;Allergens");
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void ToCsv()
|
||||
{
|
||||
var burger = new Food("Burger", Barcode, 2,
|
||||
AllergenType.A, AllergenType.F, AllergenType.M);
|
||||
var water = new Food("Leitungswasser", Barcode, 1);
|
||||
|
||||
burger.ToCsv().Should().Be($"{Barcode};Burger;2;A|F|M");
|
||||
water.ToCsv().Should().Be($"{Barcode};Leitungswasser;1;",
|
||||
"no allergens, but column is still present");
|
||||
}
|
||||
}
|
||||
94
Supermarket.Test/NonFoodTests.cs
Normal file
94
Supermarket.Test/NonFoodTests.cs
Normal file
|
|
@ -0,0 +1,94 @@
|
|||
namespace Supermarket.Test;
|
||||
|
||||
public sealed class NonFoodTests
|
||||
{
|
||||
private const string Barcode = "12345670";
|
||||
|
||||
[Theory]
|
||||
[InlineData("", Barcode, 4, Product.Invalid, Barcode, 4, "empty name")]
|
||||
[InlineData("Foo", "", 4, "Foo", Product.Invalid, 4, "empty barcode")]
|
||||
[InlineData("Foo", "1234", 4, "Foo", Product.Invalid, 4, "invalid barcode")]
|
||||
[InlineData("Foo", Barcode, -4, "Foo", Barcode, 0, "negative quantity set to 0")]
|
||||
[InlineData("Foo", Barcode, 4, "Foo", Barcode, 4, "correct values")]
|
||||
public void Construction_ProductBasics(string name, string barcode, int quantity,
|
||||
string expectedName, string expectedBarcode, int expectedQuantity,
|
||||
string reason)
|
||||
{
|
||||
var product = new NonFood(name, barcode, quantity);
|
||||
|
||||
(product.ProductName, product.Barcode, product.Quantity)
|
||||
.Should().Be((expectedName, expectedBarcode, expectedQuantity), reason);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void Construction_Simple()
|
||||
{
|
||||
const string Name = "Chalk";
|
||||
const int Quantity = 9;
|
||||
|
||||
var chalk = new NonFood(Name, Barcode, Quantity);
|
||||
|
||||
chalk.ProductName.Should().Be(Name);
|
||||
chalk.Quantity.Should().Be(Quantity);
|
||||
chalk.Barcode.Should().Be(Barcode);
|
||||
chalk.AverageRating.Should().BeNull("no reviews yet");
|
||||
chalk.Reviews.Should()
|
||||
.NotBeNull("empty list was created")
|
||||
.And.BeEmpty("no reviews yet");
|
||||
chalk.Should().BeAssignableTo<Product>("a non food item is a product");
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void AddReview_Single()
|
||||
{
|
||||
var review = new Review(DateTime.Now, Rating.FourStars, "Great fridge!");
|
||||
var fridge = new NonFood("Fridge", Barcode, 6);
|
||||
|
||||
fridge.AddReview(review);
|
||||
|
||||
fridge.Reviews.Should()
|
||||
.NotBeEmpty()
|
||||
.And.HaveCount(1, "one review added")
|
||||
.And.Contain(review);
|
||||
fridge.AverageRating.Should().BeApproximately(4D, double.Epsilon,
|
||||
"with a single review that is the average");
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void AddReview_Multiple()
|
||||
{
|
||||
var fridge = new NonFood("Fridge", Barcode, 6);
|
||||
|
||||
fridge.AddReview(new Review(DateTime.Now, Rating.FourStars, "Great fridge!"));
|
||||
fridge.AddReview(new Review(DateTime.Now, Rating.OneStar, "Broke on the first day :("));
|
||||
|
||||
fridge.Reviews.Should()
|
||||
.NotBeEmpty()
|
||||
.And.HaveCount(2, "two reviews added");
|
||||
fridge.AverageRating.Should().BeApproximately(2.5D, double.Epsilon,
|
||||
"average rating");
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void GetCsvHeader()
|
||||
{
|
||||
var fridge = new NonFood("Fridge", Barcode, 5);
|
||||
|
||||
fridge.GetCsvHeader().Should().Be("Barcode;ProductName;Quantity;AverageRating");
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void ToCsv()
|
||||
{
|
||||
var fridge = new NonFood("Fridge", Barcode, 5);
|
||||
|
||||
fridge.ToCsv().Should().Be($"{Barcode};Fridge;5;",
|
||||
"with no ratings the avg. rating column is present but empty");
|
||||
|
||||
fridge.AddReview(new Review(DateTime.Now, Rating.FourStars, "Great fridge!"));
|
||||
fridge.AddReview(new Review(DateTime.Now, Rating.FiveStars, "Amazing fridge!"));
|
||||
fridge.AddReview(new Review(DateTime.Now, Rating.TwoStars, "Very loud"));
|
||||
fridge.ToCsv().Should().Be($"{Barcode};Fridge;5;3.7",
|
||||
"avg. rating is rounded to 1 decimal place and uses invariant culture");
|
||||
}
|
||||
}
|
||||
39
Supermarket.Test/ProductTests.cs
Normal file
39
Supermarket.Test/ProductTests.cs
Normal file
|
|
@ -0,0 +1,39 @@
|
|||
namespace Supermarket.Test;
|
||||
|
||||
public sealed class ProductTests
|
||||
{
|
||||
|
||||
[Theory]
|
||||
[InlineData("10000007")]
|
||||
[InlineData("90311017")]
|
||||
[InlineData("12345670")]
|
||||
[InlineData("73513537")]
|
||||
public void IsBarcodeValid_Valid(string barcode)
|
||||
{
|
||||
Product.IsBarcodeValid(barcode)
|
||||
.Should().BeTrue();
|
||||
}
|
||||
|
||||
[Theory]
|
||||
[InlineData("10000008")]
|
||||
[InlineData("90311016")]
|
||||
[InlineData("12345677")]
|
||||
[InlineData("123xy670")]
|
||||
[InlineData("1234567z")]
|
||||
public void IsBarcodeValid_Invalid(string barcode)
|
||||
{
|
||||
Product.IsBarcodeValid(barcode)
|
||||
.Should().BeFalse();
|
||||
}
|
||||
|
||||
[Theory]
|
||||
[InlineData("", "no content")]
|
||||
[InlineData(null, "no content")]
|
||||
[InlineData("1", "too short")]
|
||||
[InlineData("903110178", "too long")]
|
||||
public void IsBarcodeValid_InvalidLength(string? barcode, string reason)
|
||||
{
|
||||
Product.IsBarcodeValid(barcode)
|
||||
.Should().BeFalse(reason);
|
||||
}
|
||||
}
|
||||
35
Supermarket.Test/Supermarket.Test.csproj
Normal file
35
Supermarket.Test/Supermarket.Test.csproj
Normal file
|
|
@ -0,0 +1,35 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<TargetFramework>net9.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
|
||||
<IsPackable>false</IsPackable>
|
||||
</PropertyGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<Using Include="FluentAssertions" />
|
||||
<Using Include="Xunit" />
|
||||
</ItemGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<PackageReference Include="AwesomeAssertions" Version="8.0.0" />
|
||||
<PackageReference Include="HTLLeonding.Utility.LeoAnalyzers" Version="1.0.2" />
|
||||
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
|
||||
<PackageReference Include="xunit" Version="2.9.3" />
|
||||
<PackageReference Include="xunit.runner.visualstudio" Version="3.0.2">
|
||||
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
|
||||
<PrivateAssets>all</PrivateAssets>
|
||||
</PackageReference>
|
||||
<PackageReference Include="coverlet.collector" Version="6.0.4">
|
||||
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
|
||||
<PrivateAssets>all</PrivateAssets>
|
||||
</PackageReference>
|
||||
</ItemGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<ProjectReference Include="..\Supermarket\Supermarket.csproj" />
|
||||
</ItemGroup>
|
||||
|
||||
</Project>
|
||||
31
Supermarket.sln
Normal file
31
Supermarket.sln
Normal file
|
|
@ -0,0 +1,31 @@
|
|||
|
||||
Microsoft Visual Studio Solution File, Format Version 12.00
|
||||
# Visual Studio Version 17
|
||||
VisualStudioVersion = 17.4.33103.184
|
||||
MinimumVisualStudioVersion = 10.0.40219.1
|
||||
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Supermarket", "Supermarket\Supermarket.csproj", "{7F30E637-BAFE-42FA-A173-F42B3902ED3B}"
|
||||
EndProject
|
||||
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Supermarket.Test", "Supermarket.Test\Supermarket.Test.csproj", "{161D9B2A-4E8B-43B6-A77E-40BED559521F}"
|
||||
EndProject
|
||||
Global
|
||||
GlobalSection(SolutionConfigurationPlatforms) = preSolution
|
||||
Debug|Any CPU = Debug|Any CPU
|
||||
Release|Any CPU = Release|Any CPU
|
||||
EndGlobalSection
|
||||
GlobalSection(ProjectConfigurationPlatforms) = postSolution
|
||||
{7F30E637-BAFE-42FA-A173-F42B3902ED3B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
||||
{7F30E637-BAFE-42FA-A173-F42B3902ED3B}.Debug|Any CPU.Build.0 = Debug|Any CPU
|
||||
{7F30E637-BAFE-42FA-A173-F42B3902ED3B}.Release|Any CPU.ActiveCfg = Release|Any CPU
|
||||
{7F30E637-BAFE-42FA-A173-F42B3902ED3B}.Release|Any CPU.Build.0 = Release|Any CPU
|
||||
{161D9B2A-4E8B-43B6-A77E-40BED559521F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
||||
{161D9B2A-4E8B-43B6-A77E-40BED559521F}.Debug|Any CPU.Build.0 = Debug|Any CPU
|
||||
{161D9B2A-4E8B-43B6-A77E-40BED559521F}.Release|Any CPU.ActiveCfg = Release|Any CPU
|
||||
{161D9B2A-4E8B-43B6-A77E-40BED559521F}.Release|Any CPU.Build.0 = Release|Any CPU
|
||||
EndGlobalSection
|
||||
GlobalSection(SolutionProperties) = preSolution
|
||||
HideSolutionNode = FALSE
|
||||
EndGlobalSection
|
||||
GlobalSection(ExtensibilityGlobals) = postSolution
|
||||
SolutionGuid = {D322E690-379C-4802-8F7E-1AC6AD090D59}
|
||||
EndGlobalSection
|
||||
EndGlobal
|
||||
42
Supermarket/Food.cs
Normal file
42
Supermarket/Food.cs
Normal file
|
|
@ -0,0 +1,42 @@
|
|||
namespace Supermarket;
|
||||
|
||||
public sealed class Food : Product
|
||||
{
|
||||
private const char AllergenSeparator = '|';
|
||||
private readonly SortedSet<AllergenType> _allergens;
|
||||
|
||||
public Food(string productName, string barcode, int quantity, params AllergenType[] allergens)
|
||||
: base(productName, barcode, quantity)
|
||||
{
|
||||
// TODO
|
||||
_allergens = null!;
|
||||
Console.WriteLine($"Remove me, I just make code compile {_allergens}");
|
||||
}
|
||||
|
||||
// TODO
|
||||
public AllergenType[] Allergens => null!;
|
||||
|
||||
// TODO
|
||||
protected override string[] CsvColumnNames => null!;
|
||||
|
||||
protected override string[] CsvColumnValues
|
||||
{
|
||||
get
|
||||
{
|
||||
// TODO
|
||||
return null!;
|
||||
}
|
||||
}
|
||||
|
||||
// TODO
|
||||
public bool AddAllergen(AllergenType allergen) => false;
|
||||
|
||||
// TODO
|
||||
public bool RemoveAllergen(AllergenType allergen) => false;
|
||||
|
||||
public bool ContainsAnyAllergen(params AllergenType[] allergens)
|
||||
{
|
||||
// TODO
|
||||
return false;
|
||||
}
|
||||
}
|
||||
85
Supermarket/Model.cs
Normal file
85
Supermarket/Model.cs
Normal file
|
|
@ -0,0 +1,85 @@
|
|||
namespace Supermarket;
|
||||
|
||||
public sealed record Review(DateTime Timestamp, Rating Rating, string Comment);
|
||||
|
||||
public enum Rating
|
||||
{
|
||||
OneStar = 1,
|
||||
TwoStars = 2,
|
||||
ThreeStars = 3,
|
||||
FourStars = 4,
|
||||
FiveStars = 5
|
||||
}
|
||||
|
||||
public enum AllergenType
|
||||
{
|
||||
/// <summary>
|
||||
/// Gluten
|
||||
/// </summary>
|
||||
A,
|
||||
|
||||
/// <summary>
|
||||
/// Crustaceans
|
||||
/// </summary>
|
||||
B,
|
||||
|
||||
/// <summary>
|
||||
/// Egg
|
||||
/// </summary>
|
||||
C,
|
||||
|
||||
/// <summary>
|
||||
/// Fish
|
||||
/// </summary>
|
||||
D,
|
||||
|
||||
/// <summary>
|
||||
/// Peanut
|
||||
/// </summary>
|
||||
E,
|
||||
|
||||
/// <summary>
|
||||
/// Soy
|
||||
/// </summary>
|
||||
F,
|
||||
|
||||
/// <summary>
|
||||
/// Milk / Lactose
|
||||
/// </summary>
|
||||
G,
|
||||
|
||||
/// <summary>
|
||||
/// Legumes
|
||||
/// </summary>
|
||||
H,
|
||||
|
||||
/// <summary>
|
||||
/// Celery
|
||||
/// </summary>
|
||||
L,
|
||||
|
||||
/// <summary>
|
||||
/// Mustard
|
||||
/// </summary>
|
||||
M,
|
||||
|
||||
/// <summary>
|
||||
/// Sesame
|
||||
/// </summary>
|
||||
N,
|
||||
|
||||
/// <summary>
|
||||
/// Sulfides
|
||||
/// </summary>
|
||||
O,
|
||||
|
||||
/// <summary>
|
||||
/// Lupines
|
||||
/// </summary>
|
||||
P,
|
||||
|
||||
/// <summary>
|
||||
/// Molluscs
|
||||
/// </summary>
|
||||
R
|
||||
}
|
||||
40
Supermarket/NonFood.cs
Normal file
40
Supermarket/NonFood.cs
Normal file
|
|
@ -0,0 +1,40 @@
|
|||
using System.Globalization;
|
||||
|
||||
namespace Supermarket;
|
||||
|
||||
public sealed class NonFood : Product
|
||||
{
|
||||
private readonly List<Review> _reviews;
|
||||
|
||||
public NonFood(string productName, string barcode, int quantity)
|
||||
: base(productName, barcode, quantity)
|
||||
{
|
||||
// TODO
|
||||
_reviews = null!;
|
||||
Console.WriteLine($"Remove me, I just make code compile {_reviews}");
|
||||
}
|
||||
|
||||
// TODO
|
||||
public Review[] Reviews => null!;
|
||||
|
||||
public double? AverageRating
|
||||
{
|
||||
get
|
||||
{
|
||||
// TODO
|
||||
return -1D;
|
||||
}
|
||||
}
|
||||
|
||||
// TODO
|
||||
protected override string[] CsvColumnNames => null!;
|
||||
|
||||
// TODO
|
||||
// hint: .ToString("F1", CultureInfo.InvariantCulture)
|
||||
protected override string[] CsvColumnValues => null!;
|
||||
|
||||
public void AddReview(Review review)
|
||||
{
|
||||
// TODO
|
||||
}
|
||||
}
|
||||
48
Supermarket/Product.cs
Normal file
48
Supermarket/Product.cs
Normal file
|
|
@ -0,0 +1,48 @@
|
|||
namespace Supermarket;
|
||||
|
||||
public abstract class Product
|
||||
{
|
||||
public const char Separator = ';';
|
||||
|
||||
public const string Invalid = "Invalid!";
|
||||
|
||||
protected Product(string productName, string barcode, int quantity)
|
||||
{
|
||||
// TODO
|
||||
ProductName = null!;
|
||||
Barcode = null!;
|
||||
}
|
||||
|
||||
public string ProductName { get; }
|
||||
|
||||
public string Barcode { get; }
|
||||
|
||||
public int Quantity { get; }
|
||||
|
||||
// TODO
|
||||
protected virtual string[] CsvColumnNames => null!;
|
||||
|
||||
// TODO
|
||||
protected virtual string[] CsvColumnValues => null!;
|
||||
|
||||
// TODO
|
||||
public string GetCsvHeader() => null!;
|
||||
|
||||
// TODO
|
||||
public string ToCsv() => null!;
|
||||
|
||||
// TODO
|
||||
protected static string ToCsvLine(string[] values, char separator) => null!;
|
||||
|
||||
public static bool IsBarcodeValid(string? barcode)
|
||||
{
|
||||
// TODO
|
||||
return false;
|
||||
}
|
||||
|
||||
protected static T[] AppendToArray<T>(T[] existingArray, params T[] newValues)
|
||||
{
|
||||
// TODO
|
||||
return null!;
|
||||
}
|
||||
}
|
||||
1
Supermarket/Program.cs
Normal file
1
Supermarket/Program.cs
Normal file
|
|
@ -0,0 +1 @@
|
|||
Console.WriteLine("*** Supermarket ***");
|
||||
15
Supermarket/Supermarket.csproj
Normal file
15
Supermarket/Supermarket.csproj
Normal file
|
|
@ -0,0 +1,15 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net9.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
|
||||
</PropertyGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<PackageReference Include="HTLLeonding.Utility.LeoAnalyzers" Version="1.0.2" />
|
||||
</ItemGroup>
|
||||
|
||||
</Project>
|
||||
BIN
pics/barcode.png
Normal file
BIN
pics/barcode.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 29 KiB |
BIN
pics/food.jpg
Normal file
BIN
pics/food.jpg
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 126 KiB |
BIN
pics/non-food.jpeg
Normal file
BIN
pics/non-food.jpeg
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 71 KiB |
151
readme.adoc
Normal file
151
readme.adoc
Normal file
|
|
@ -0,0 +1,151 @@
|
|||
:sectnums:
|
||||
:nofooter:
|
||||
:toc: left
|
||||
:icons: font
|
||||
:data-uri:
|
||||
:source-highlighter: highlightjs
|
||||
:stem: latexmath
|
||||
|
||||
= Inh.04 -- Supermarket
|
||||
|
||||
We are processing products sold in a supermarket for its new online-shop offering.
|
||||
Unlike a traditional grocer, a supermarket offers not only food, but also non-food articles.
|
||||
|
||||
[cols="a,a",frame=none, grid=none]
|
||||
|===
|
||||
| image::pics/food.jpg[Food]
|
||||
| image::pics/non-food.jpeg[Non-Food]
|
||||
|===
|
||||
|
||||
|
||||
|
||||
== Products
|
||||
|
||||
Both food and non-food products share some common properties:
|
||||
|
||||
* A barcode
|
||||
** Has to be a valid barcode, see <<validation,validation>>
|
||||
* A product name
|
||||
** Cannot be empty
|
||||
* A stock quantity
|
||||
** Must not be negative
|
||||
|
||||
Invalid values for barcode & product name are replaced by `"Invalid!"`, a negative quantity is set to `0`.
|
||||
|
||||
=== Barcode Validation[[validation]]
|
||||
|
||||
* All products have an https://en.wikipedia.org/wiki/EAN-8[EAN-8] barcode
|
||||
** image:pics/barcode.png[EAN-8,width=200]
|
||||
* It consists of 8 digits
|
||||
** So no letters are allowed
|
||||
** Shorter or longer EANs are not supported
|
||||
* The last (eight) digit is a _check digit_ which is calculated from the first 7 digits
|
||||
** Each digit is multiplied by a certain weight
|
||||
*** A digit at an _even_ index has a weight of 3
|
||||
*** A digit at an _uneven_ index has a weight of 1
|
||||
** All _weighted_ digits are summed up
|
||||
** Then the _difference_ of the _unit place_ to _the next multiple of ten_ is calculated
|
||||
** This difference has to _match_ the check digit => then the barcode is valid
|
||||
|
||||
==== Example
|
||||
|
||||
* For the EAN 73513537
|
||||
* => Check digit is 7
|
||||
|
||||
[cols="3h,7*"]
|
||||
|===
|
||||
|
||||
|Position
|
||||
|0
|
||||
|1
|
||||
|2
|
||||
|3
|
||||
|4
|
||||
|5
|
||||
|6
|
||||
|
||||
|Weight
|
||||
|3
|
||||
|1
|
||||
|3
|
||||
|1
|
||||
|3
|
||||
|1
|
||||
|3
|
||||
|
||||
|EAN
|
||||
|7
|
||||
|3
|
||||
|5
|
||||
|1
|
||||
|3
|
||||
|5
|
||||
|3
|
||||
|
||||
|Multiplication-Product
|
||||
|21
|
||||
|3
|
||||
|15
|
||||
|1
|
||||
|9
|
||||
|5
|
||||
|9
|
||||
|===
|
||||
|
||||
* Sum of all multiplication products is 63
|
||||
* The next (bigger) multiple of ten is 70
|
||||
* The difference between 70 and 63 is 7 => the check digit should be 7
|
||||
** Actually, it is sufficient to subtract the unit place (_remainder_) from 10
|
||||
* => This is a valid EAN-8 barcode
|
||||
|
||||
|
||||
=== CSV Export
|
||||
|
||||
* All products are ready to be exported as CSV
|
||||
* To support this task they have to provide two functions:
|
||||
.. Provide a header with all individual column names
|
||||
.. Turn the instance values into a CSV string
|
||||
|
||||
NOTE: The actual export to a file does _not_ have to be implemented this time -- but you should be able to do that, including proper path handling, without any problems by now!
|
||||
|
||||
==== `AppendToArray`
|
||||
|
||||
* This method is useful for tasks related to the CSV export capabilities
|
||||
* It is a _generic_ method
|
||||
** Despite only being called for `string` in this assignment 🙄
|
||||
* Its job is to create a _new_ array which contains the content of the original array and (at the end) additional elements
|
||||
|
||||
=== Food
|
||||
|
||||
* Food products can contain various allergens
|
||||
* The supermarket is legally required to list those to avoid life-threatening reactions for affected customers
|
||||
* Those allergens are identified by a standardized code
|
||||
** Already available in the `AllergenType` `enum`
|
||||
** As defined by the Wirtschaftskammer Österreich (WKO)
|
||||
* The list must not contain duplicates
|
||||
* We need to offer a way of checking if any (one or more) specific allergen(s) is contained within the product
|
||||
* No matter the order allergens are added or removed, they are always stored _in order_
|
||||
** You are already _so very good_ at implementing sorting algorithms (😝) that we will use a proper one this time by utilizing a https://learn.microsoft.com/en-us/dotnet/api/system.collections.generic.sortedset-1[`SortedSet`]
|
||||
*** Try to remember what we recently learnt about collections: why aren't we using a https://learn.microsoft.com/en-us/dotnet/api/system.collections.generic.sortedlist-2[`SortedList`] 🤔
|
||||
* The list of allergens will be _encoded_ in the CSV string as _another_ CSV string using `'|'` as separator
|
||||
|
||||
=== Non-Food
|
||||
|
||||
* Non-food products can be reviewed by customers
|
||||
* Each `Review` has the following properties:
|
||||
** Date & Time it was posted
|
||||
** A star-rating
|
||||
*** As defined in the `Rating` `enum`
|
||||
** A comment
|
||||
* Based on all posted reviews an _average_ rating can be calculated
|
||||
|
||||
== Tasks
|
||||
|
||||
. Create a UML class diagram using PlantUML
|
||||
. Complete the program by implementing all missing code pieces
|
||||
** Look for `TODOs`
|
||||
** Extensive unit tests have been provided
|
||||
. Write all necessary XMLDoc comments
|
||||
** Usually everything `public` & `protected` if _not_ inherited in a meaningful way
|
||||
|
||||
TIP: This assignment makes liberal use of the `params` feature -- if you can't remember what that is, https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/params[check it out again]
|
||||
Loading…
Add table
Add a link
Reference in a new issue