Hamming: based on Ruby exercise of the same name

.gitignore

@@ -2,3 +2,12 @@
 .DS_Store
 bin/configlet
 bin/configlet.exe
+*.dsk
+*.local
+*.dcu
+*.*~*
+*.identcache
+*.res
+exercises/Hello-World/uHelloWorld.pas
+exercises/hamming/uHamming.pas
+exercises/bob/uBob.pas

exercises/Hello-World/TestHelloWorld.dpr

@@ -0,0 +1,60 @@
+program TestHelloWorld;
+
+{$IFNDEF TESTINSIGHT}
+{$APPTYPE CONSOLE}
+{$ENDIF}{$STRONGLINKTYPES ON}
+uses
+  System.SysUtils,
+  {$IFDEF TESTINSIGHT}
+  TestInsight.DUnitX,
+  {$ENDIF }
+  DUnitX.Loggers.Console,
+  DUnitX.Loggers.Xml.NUnit,
+  DUnitX.TestFramework,
+  uTestHelloWorld in 'uTestHelloWorld.pas',
+  uHelloWorld in 'uHelloWorld.pas';
+
+var
+  runner : ITestRunner;
+  results : IRunResults;
+  logger : ITestLogger;
+  nunitLogger : ITestLogger;
+begin
+{$IFDEF TESTINSIGHT}
+  TestInsight.DUnitX.RunRegisteredTests;
+  exit;
+{$ENDIF}
+  try
+    //Check command line options, will exit if invalid
+    TDUnitX.CheckCommandLine;
+    //Create the test runner
+    runner := TDUnitX.CreateRunner;
+    //Tell the runner to use RTTI to find Fixtures
+    runner.UseRTTI := True;
+    //tell the runner how we will log things
+    //Log to the console window
+    logger := TDUnitXConsoleLogger.Create(true);
+    runner.AddLogger(logger);
+    //Generate an NUnit compatible XML File
+    nunitLogger := TDUnitXXMLNUnitFileLogger.Create(TDUnitX.Options.XMLOutputFile);
+    runner.AddLogger(nunitLogger);
+    runner.FailsOnNoAsserts := False; //When true, Assertions must be made during tests;
+
+    //Run tests
+    results := runner.Execute;
+    if not results.AllPassed then
+      System.ExitCode := EXIT_ERRORS;
+
+    {$IFNDEF CI}
+    //We don't want this happening when running under CI.
+    if TDUnitX.Options.ExitBehavior = TDUnitXExitBehavior.Pause then
+    begin
+      System.Write('Done.. press <Enter> key to quit.');
+      System.Readln;
+    end;
+    {$ENDIF}
+  except
+    on E: Exception do
+      System.Writeln(E.ClassName, ': ', E.Message);
+  end;
+end.

exercises/Hello-World/TestHelloWorld.dproj

@@ -0,0 +1,176 @@
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+    <PropertyGroup>
+        <ProjectGuid>{1ED07C8D-2746-43A7-B0C3-02DA65C986A6}</ProjectGuid>
+        <ProjectVersion>15.3</ProjectVersion>
+        <FrameworkType>None</FrameworkType>
+        <MainSource>TestHelloWorld.dpr</MainSource>
+        <Base>True</Base>
+        <Config Condition="'$(Config)'==''">Debug</Config>
+        <Platform Condition="'$(Platform)'==''">Win32</Platform>
+        <TargetedPlatforms>1</TargetedPlatforms>
+        <AppType>Console</AppType>
+    </PropertyGroup>
+    <PropertyGroup Condition="'$(Config)'=='Base' or '$(Base)'!=''">
+        <Base>true</Base>
+    </PropertyGroup>
+    <PropertyGroup Condition="('$(Platform)'=='OSX32' and '$(Base)'=='true') or '$(Base_OSX32)'!=''">
+        <Base_OSX32>true</Base_OSX32>
+        <CfgParent>Base</CfgParent>
+        <Base>true</Base>
+    </PropertyGroup>
+    <PropertyGroup Condition="('$(Platform)'=='Win32' and '$(Base)'=='true') or '$(Base_Win32)'!=''">
+        <Base_Win32>true</Base_Win32>
+        <CfgParent>Base</CfgParent>
+        <Base>true</Base>
+    </PropertyGroup>
+    <PropertyGroup Condition="('$(Platform)'=='Win64' and '$(Base)'=='true') or '$(Base_Win64)'!=''">
+        <Base_Win64>true</Base_Win64>
+        <CfgParent>Base</CfgParent>
+        <Base>true</Base>
+    </PropertyGroup>
+    <PropertyGroup Condition="'$(Config)'=='Debug' or '$(Cfg_1)'!=''">
+        <Cfg_1>true</Cfg_1>
+        <CfgParent>Base</CfgParent>
+        <Base>true</Base>
+    </PropertyGroup>
+    <PropertyGroup Condition="('$(Platform)'=='Win32' and '$(Cfg_1)'=='true') or '$(Cfg_1_Win32)'!=''">
+        <Cfg_1_Win32>true</Cfg_1_Win32>
+        <CfgParent>Cfg_1</CfgParent>
+        <Cfg_1>true</Cfg_1>
+        <Base>true</Base>
+    </PropertyGroup>
+    <PropertyGroup Condition="'$(Config)'=='Release' or '$(Cfg_2)'!=''">
+        <Cfg_2>true</Cfg_2>
+        <CfgParent>Base</CfgParent>
+        <Base>true</Base>
+    </PropertyGroup>
+    <PropertyGroup Condition="'$(Base)'!=''">
+        <DCC_UnitSearchPath>$(DUnitX);$(DCC_UnitSearchPath)</DCC_UnitSearchPath>
+        <Icns_MainIcns>$(BDS)\bin\delphi_PROJECTICNS.icns</Icns_MainIcns>
+        <DCC_Namespace>System;Xml;Data;Datasnap;Web;Soap;$(DCC_Namespace)</DCC_Namespace>
+        <DCC_DcuOutput>.\$(Platform)\$(Config)</DCC_DcuOutput>
+        <DCC_ExeOutput>.\$(Platform)\$(Config)</DCC_ExeOutput>
+        <DCC_E>false</DCC_E>
+        <DCC_N>false</DCC_N>
+        <DCC_S>false</DCC_S>
+        <DCC_F>false</DCC_F>
+        <DCC_K>false</DCC_K>
+    </PropertyGroup>
+    <PropertyGroup Condition="'$(Base_OSX32)'!=''">
+        <DCC_UsePackage>FireDACASADriver;FireDACSqliteDriver;bindcompfmx;DBXSqliteDriver;FireDACPgDriver;FireDACODBCDriver;fmx;rtl;dbrtl;DbxClientDriver;IndySystem;FireDACCommon;bindcomp;DBXInterBaseDriver;DataSnapCommon;xmlrtl;ibxpress;DbxCommonDriver;IndyProtocols;dbxcds;DBXMySQLDriver;FireDACCommonDriver;soaprtl;bindengine;bindcompdbx;FMXTee;fmxFireDAC;FireDACADSDriver;CustomIPTransport;FireDAC;dsnap;IndyIPServer;fmxase;IndyCore;IndyIPCommon;CloudService;FireDACIBDriver;FmxTeeUI;inet;fmxobj;FireDACMySQLDriver;inetdbxpress;fmxdae;RESTComponents;FireDACMSAccDriver;dbexpress;IndyIPClient;$(DCC_UsePackage)</DCC_UsePackage>
+    </PropertyGroup>
+    <PropertyGroup Condition="'$(Base_Win32)'!=''">
+        <DCC_Namespace>Winapi;System.Win;Data.Win;Datasnap.Win;Web.Win;Soap.Win;Xml.Win;Bde;$(DCC_Namespace)</DCC_Namespace>
+        <DCC_UsePackage>frxDB19;L208_r140;FireDACASADriver;FireDACSqliteDriver;bindcompfmx;DBXSqliteDriver;AbbreviaVCL;vcldbx;FireDACPgDriver;FireDACODBCDriver;S404_r;fmx;rtl;dbrtl;DbxClientDriver;IndySystem;FireDACCommon;bindcomp;TeeDB;frx19;vclib;inetdbbde;DBXInterBaseDriver;Tee;DataSnapCommon;vclFireDAC;Rave110VCL;xmlrtl;svnui;ibxpress;DbxCommonDriver;vclimg;IndyProtocols;dbxcds;DBXMySQLDriver;FireDACCommonDriver;MetropolisUILiveTile;O408_r;soaprtl;bindengine;vclactnband;vcldb;bindcompdbx;vcldsnap;bindcompvcl;FMXTee;TeeUI;AsyncPro;vclie;XMLPartner_PR;fmxFireDAC;FireDACADSDriver;vcltouch;CustomIPTransport;G114_R140;vclribbon;VclSmp;FireDAC;dsnap;IndyIPServer;Intraweb;fmxase;vcl;IndyCore;VCLRESTComponents;OmniThreadLibraryRuntimeXE5;IndyIPCommon;CloudService;CodeSiteExpressPkg;dsnapcon;FireDACIBDriver;FmxTeeUI;inet;fmxobj;E111_R120;FireDACMySQLDriver;vclx;inetdbxpress;svn;fmxdae;frxe19;RESTComponents;bdertl;FireDACMSAccDriver;adortl;dbexpress;IndyIPClient;$(DCC_UsePackage)</DCC_UsePackage>
+        <VerInfo_Keys>CompanyName=;FileDescription=;FileVersion=1.0.0.0;InternalName=;LegalCopyright=;LegalTrademarks=;OriginalFilename=;ProductName=;ProductVersion=1.0.0.0;Comments=</VerInfo_Keys>
+        <VerInfo_Locale>1033</VerInfo_Locale>
+    </PropertyGroup>
+    <PropertyGroup Condition="'$(Base_Win64)'!=''">
+        <DCC_UsePackage>FireDACASADriver;FireDACSqliteDriver;bindcompfmx;DBXSqliteDriver;AbbreviaVCL;FireDACPgDriver;FireDACODBCDriver;fmx;rtl;dbrtl;DbxClientDriver;IndySystem;FireDACCommon;bindcomp;TeeDB;vclib;DBXInterBaseDriver;Tee;DataSnapCommon;vclFireDAC;xmlrtl;ibxpress;DbxCommonDriver;vclimg;IndyProtocols;dbxcds;DBXMySQLDriver;FireDACCommonDriver;MetropolisUILiveTile;O408_r;soaprtl;bindengine;vclactnband;vcldb;bindcompdbx;vcldsnap;bindcompvcl;FMXTee;TeeUI;vclie;fmxFireDAC;FireDACADSDriver;vcltouch;CustomIPTransport;vclribbon;VclSmp;FireDAC;dsnap;IndyIPServer;Intraweb;fmxase;vcl;IndyCore;VCLRESTComponents;IndyIPCommon;CloudService;dsnapcon;FireDACIBDriver;FmxTeeUI;inet;fmxobj;FireDACMySQLDriver;vclx;inetdbxpress;fmxdae;RESTComponents;FireDACMSAccDriver;adortl;dbexpress;IndyIPClient;$(DCC_UsePackage)</DCC_UsePackage>
+    </PropertyGroup>
+    <PropertyGroup Condition="'$(Cfg_1)'!=''">
+        <DCC_Define>DEBUG;$(DCC_Define)</DCC_Define>
+        <DCC_DebugDCUs>true</DCC_DebugDCUs>
+        <DCC_Optimize>false</DCC_Optimize>
+        <DCC_GenerateStackFrames>true</DCC_GenerateStackFrames>
+        <DCC_DebugInfoInExe>true</DCC_DebugInfoInExe>
+        <DCC_RemoteDebug>true</DCC_RemoteDebug>
+    </PropertyGroup>
+    <PropertyGroup Condition="'$(Cfg_1_Win32)'!=''">
+        <DCC_RemoteDebug>false</DCC_RemoteDebug>
+    </PropertyGroup>
+    <PropertyGroup Condition="'$(Cfg_2)'!=''">
+        <DCC_LocalDebugSymbols>false</DCC_LocalDebugSymbols>
+        <DCC_Define>RELEASE;$(DCC_Define)</DCC_Define>
+        <DCC_SymbolReferenceInfo>0</DCC_SymbolReferenceInfo>
+        <DCC_DebugInformation>0</DCC_DebugInformation>
+    </PropertyGroup>
+    <ItemGroup>
+        <DelphiCompile Include="$(MainSource)">
+            <MainSource>MainSource</MainSource>
+        </DelphiCompile>
+        <DCCReference Include="uTestHelloWorld.pas"/>
+        <DCCReference Include="uHelloWorld.pas"/>
+        <BuildConfiguration Include="Release">
+            <Key>Cfg_2</Key>
+            <CfgParent>Base</CfgParent>
+        </BuildConfiguration>
+        <BuildConfiguration Include="Base">
+            <Key>Base</Key>
+        </BuildConfiguration>
+        <BuildConfiguration Include="Debug">
+            <Key>Cfg_1</Key>
+            <CfgParent>Base</CfgParent>
+        </BuildConfiguration>
+    </ItemGroup>
+    <ProjectExtensions>
+        <Borland.Personality>Delphi.Personality.12</Borland.Personality>
+        <Borland.ProjectType/>
+        <BorlandProject>
+            <Delphi.Personality>
+                <VersionInfo>
+                    <VersionInfo Name="IncludeVerInfo">False</VersionInfo>
+                    <VersionInfo Name="AutoIncBuild">False</VersionInfo>
+                    <VersionInfo Name="MajorVer">1</VersionInfo>
+                    <VersionInfo Name="MinorVer">0</VersionInfo>
+                    <VersionInfo Name="Release">0</VersionInfo>
+                    <VersionInfo Name="Build">0</VersionInfo>
+                    <VersionInfo Name="Debug">False</VersionInfo>
+                    <VersionInfo Name="PreRelease">False</VersionInfo>
+                    <VersionInfo Name="Special">False</VersionInfo>
+                    <VersionInfo Name="Private">False</VersionInfo>
+                    <VersionInfo Name="DLL">False</VersionInfo>
+                    <VersionInfo Name="Locale">1033</VersionInfo>
+                    <VersionInfo Name="CodePage">1252</VersionInfo>
+                </VersionInfo>
+                <VersionInfoKeys>
+                    <VersionInfoKeys Name="CompanyName"/>
+                    <VersionInfoKeys Name="FileDescription"/>
+                    <VersionInfoKeys Name="FileVersion">1.0.0.0</VersionInfoKeys>
+                    <VersionInfoKeys Name="InternalName"/>
+                    <VersionInfoKeys Name="LegalCopyright"/>
+                    <VersionInfoKeys Name="LegalTrademarks"/>
+                    <VersionInfoKeys Name="OriginalFilename"/>
+                    <VersionInfoKeys Name="ProductName"/>
+                    <VersionInfoKeys Name="ProductVersion">1.0.0.0</VersionInfoKeys>
+                    <VersionInfoKeys Name="Comments"/>
+                    <VersionInfoKeys Name="CFBundleName"/>
+                    <VersionInfoKeys Name="CFBundleDisplayName"/>
+                    <VersionInfoKeys Name="UIDeviceFamily"/>
+                    <VersionInfoKeys Name="CFBundleIdentifier"/>
+                    <VersionInfoKeys Name="CFBundleVersion"/>
+                    <VersionInfoKeys Name="CFBundlePackageType"/>
+                    <VersionInfoKeys Name="CFBundleSignature"/>
+                    <VersionInfoKeys Name="CFBundleAllowMixedLocalizations"/>
+                    <VersionInfoKeys Name="UISupportedInterfaceOrientations"/>
+                    <VersionInfoKeys Name="CFBundleExecutable"/>
+                    <VersionInfoKeys Name="CFBundleResourceSpecification"/>
+                    <VersionInfoKeys Name="LSRequiresIPhoneOS"/>
+                    <VersionInfoKeys Name="CFBundleInfoDictionaryVersion"/>
+                    <VersionInfoKeys Name="CFBundleDevelopmentRegion"/>
+                    <VersionInfoKeys Name="package"/>
+                    <VersionInfoKeys Name="label"/>
+                    <VersionInfoKeys Name="versionCode"/>
+                    <VersionInfoKeys Name="versionName"/>
+                    <VersionInfoKeys Name="persistent"/>
+                    <VersionInfoKeys Name="restoreAnyVersion"/>
+                    <VersionInfoKeys Name="installLocation"/>
+                    <VersionInfoKeys Name="largeHeap"/>
+                    <VersionInfoKeys Name="theme"/>
+                </VersionInfoKeys>
+                <Source>
+                    <Source Name="MainSource">TestHelloWorld.dpr</Source>
+                </Source>
+            </Delphi.Personality>
+            <Deployment/>
+            <Platforms>
+                <Platform value="OSX32">False</Platform>
+                <Platform value="Win32">True</Platform>
+                <Platform value="Win64">False</Platform>
+            </Platforms>
+        </BorlandProject>
+        <ProjectFileVersion>12</ProjectFileVersion>
+    </ProjectExtensions>
+    <Import Project="$(BDS)\Bin\CodeGear.Delphi.Targets" Condition="Exists('$(BDS)\Bin\CodeGear.Delphi.Targets')"/>
+    <Import Project="$(APPDATA)\Embarcadero\$(BDSAPPDATABASEDIR)\$(PRODUCTVERSION)\UserTools.proj" Condition="Exists('$(APPDATA)\Embarcadero\$(BDSAPPDATABASEDIR)\$(PRODUCTVERSION)\UserTools.proj')"/>
+</Project>

exercises/Hello-World/Win32/Debug/dunitx-results.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<test-results name="Z:\projects.git\xpascal\exercises\Hello-World\Win32\Debug\TestHelloWorld.exe" total="3" errors="0" failures="0" ignored="0" inconclusive="0" not-run="0" skipped="0" invalid="0" date="2016-10-03" time="0.002">
+  <culture-info current-culture="en" current-uiculture="en" />
+  <test-suite type="Assembly" name="TestHelloWorld.exe" executed="true" result="Success" success="True" time="0.002" asserts="0">
+    <results>
+        <test-suite type="Namespace" name="uTestHelloWorld" executed="true" result="Success" success="True" time="0.000" asserts="0" >
+          <results>
+              <test-suite type="Fixture" name="HelloWorldTest" executed="True" result="Success" success="True" time="0.000" >
+                <results>
+                  <test-case name="test_no_name" executed="True" result="Success" success="True" time="0.000" asserts="0" />
+                  <test-case name="test_sample_name" executed="True" result="Success" success="True" time="0.000" asserts="0" />
+                  <test-case name="test_other_sample_name" executed="True" result="Success" success="True" time="0.000" asserts="0" />
+                </results>
+              </test-suite>
+          </results>
+        </test-suite>
+    </results>
+  </test-suite>
+</test-results>

exercises/Hello-World/config.json

@@ -0,0 +1,7 @@
+  "exercises": [
+    {
+	   "slug": "hello-world",
+	   "difficulty": 1,
+	   "topics": []
+	}
+  ]

exercises/Hello-World/example.pas

@@ -0,0 +1,24 @@
+//========================================================
+// Example solution to exercise.
+//
+// A simple hello function would suffice, however this
+// solution is mimicking the Ruby hello-world exercise
+//========================================================
+unit uHelloWorld;
+
+interface
+
+type
+  THelloWorld = class
+  public
+    class function hello(name: string='World'): string; static;
+  end;
+
+implementation
+
+class function THelloWorld.hello(name: string='World'): string;
+begin
+  result := 'Hello, ' + name + '!';
+end;
+
+end.

exercises/Hello-World/uTestHelloWorld.pas

@@ -0,0 +1,65 @@
+unit uTestHelloWorld;
+
+interface
+uses
+  DUnitX.TestFramework;
+
+type
+  [TestFixture]
+  HelloWorldTest = class(TObject)
+  public
+    [Test]
+//    [Ignore]
+    procedure test_no_name;
+    [Test]
+//    [Ignore]
+    procedure test_sample_name;
+    [Test]
+//    [Ignore]
+    procedure test_other_sample_name;
+  end;
+
+implementation
+uses uHelloWorld;
+
+procedure HelloWorldTest.test_no_name;
+begin
+  assert.AreEqual('Hello, World!', THelloWorld.hello);
+end;
+
+procedure HelloWorldTest.test_sample_name;
+begin
+  assert.AreEqual('Hello, Alice!',THelloWorld.hello('Alice'));
+end;
+
+procedure HelloWorldTest.test_other_sample_name;
+begin
+  assert.AreEqual('Hello, Bob!', THelloWorld.hello('Bob'));
+end;
+
+initialization
+  TDUnitX.RegisterTestFixture(HelloWorldTest);
+end.
+
+(*
+*****************************************************
+You got an error, which is exactly as it should be.
+This is the first step in the Test-Driven Development
+(TDD) process.
+
+The most important part of the error is
+
+   "cannot compile"
+
+It's looking for a file named uHelloWorld.pas that doesn't
+exist yet.
+
+To fix the error, create an empty file named uHelloWorld.pas
+in the same directory as the uTestHelloWorld.pas file.
+
+Then run the test again.
+
+For more guidance as you work on this exercise, see
+GETTING_STARTED.md.
+*****************************************************
+*)