This is a prerelease version of CodeContracts.

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1.10.20606.1-rc2 | Updated: 08 Sep 2016



Downloads of v 1.10.20606.1-rc2:



Software Author(s):

  • RiSE

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CodeContracts 1.10.20606.1-rc2

This is a prerelease version of CodeContracts.

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All Checks are Passing

3 Passing Tests

Validation Testing Passed

Verification Testing Passed


Scan Testing Successful:

No detections found in any package files


To install CodeContracts, run the following command from the command line or from PowerShell:


To upgrade CodeContracts, run the following command from the command line or from PowerShell:


To uninstall CodeContracts, run the following command from the command line or from PowerShell:


NOTE: This applies to both open source and commercial editions of Chocolatey.

1. Ensure you are set for organizational deployment

Please see the organizational deployment guide

  • Open Source or Commercial:
    • Proxy Repository - Create a proxy nuget repository on Nexus, Artifactory Pro, or a proxy Chocolatey repository on ProGet. Point your upstream to Packages cache on first access automatically. Make sure your choco clients are using your proxy repository as a source and NOT the default community repository. See source command for more information.
    • You can also just download the package and push it to a repository Download

3. Enter your internal repository url

(this should look similar to

4. Choose your deployment method:

choco upgrade codecontracts -y --source="'STEP 3 URL'" [other options]

See options you can pass to upgrade.

See best practices for scripting.

Add this to a PowerShell script or use a Batch script with tools and in places where you are calling directly to Chocolatey. If you are integrating, keep in mind enhanced exit codes.

If you do use a PowerShell script, use the following to ensure bad exit codes are shown as failures:

choco upgrade codecontracts -y --source="'STEP 3 URL'"

Write-Verbose "Exit code was $exitCode"
$validExitCodes = @(0, 1605, 1614, 1641, 3010)
if ($validExitCodes -contains $exitCode) {
  Exit 0

Exit $exitCode

- name: Ensure codecontracts installed
    name: codecontracts
    state: present
    version: 1.10.20606.1-rc2
    source: STEP 3 URL

See docs at

chocolatey_package 'codecontracts' do
  action    :install
  version  '1.10.20606.1-rc2'
  source   'STEP 3 URL'

See docs at

    Name: codecontracts,
    Version: 1.10.20606.1-rc2,
    Source: STEP 3 URL

Requires Otter Chocolatey Extension. See docs at

cChocoPackageInstaller codecontracts
   Name     = 'codecontracts'
   Ensure   = 'Present'
   Version  = '1.10.20606.1-rc2'
   Source   = 'STEP 3 URL'

Requires cChoco DSC Resource. See docs at

package { 'codecontracts':
  provider => 'chocolatey',
  ensure   => '1.10.20606.1-rc2',
  source   => 'STEP 3 URL',

Requires Puppet Chocolatey Provider module. See docs at

salt '*' chocolatey.install codecontracts version="1.10.20606.1-rc2" source="STEP 3 URL"

See docs at

5. If applicable - Chocolatey configuration/installation

See infrastructure management matrix for Chocolatey configuration elements and examples.

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This package is exempt from moderation. While it is likely safe for you, there is more risk involved.

Code Contracts provide a language-agnostic way to express coding assumptions
in .NET programs.

The contracts take the form of pre-conditions, post-conditions, and object
Contracts act as checked documentation of your external and internal APIs.
The contracts are used to improve testing via runtime checking,
enable static contract verification, and documentation generation.
Code Contracts bring the advantages of design-by-contract programming to all
.NET programming languages. We currently provide three tools:

  1. Runtime Checking. Our binary rewriter modifies a program by injecting
    the contracts, which are checked as part of program execution.
    Rewritten programs improve testability: each contract acts as an oracle,
    giving a test run a pass/fail indication. Automatic testing tools, such as Pex,
    take advantage of contracts to generate more meaningful unit tests by
    filtering out meaningless test arguments that don't satisfy the pre-conditions.
  2. Static Checking. Our static checker can decide if there are any contract
    violations without even running the program!
    It checks for implicit contracts, such as null dereferences and array bounds,
    as well as the explicit contracts.
  3. Documentation Generation. Our documentation generator augments existing
    XML doc files with contract information.
    There are also new style sheets that can be used with Sandcastle so that the
    generated documentation pages have contract sections.

Please Note: This is an automatically updated package. If you find it is
out of date by more than a day or two, please contact the maintainer(s) and
let them know the package is no longer updating correctly.

$ErrorActionPreference = 'Stop';

$packageName= 'CodeContracts'
$url        = ''
$checksum   = '5a2e44751a650a8442dfe1a41484e960b46eaa1a55b25672f6537a1d59015f5b'
$checksumType = 'sha256'

$packageArgs = @{
  packageName   = $packageName
  fileType      = 'msi'
  url           = $url
  silentArgs    = "/qn /norestart /l*v `"$($env:TEMP)\$($packageName).$($env:chocolateyPackageVersion).MsiInstall.log`""
  validExitCodes= @(0, 3010, 1641)
  checksum      = $checksum
  checksumType  = $checksumType

  softwareName  = 'Microsoft CodeContracts*'

Install-ChocolateyPackage @packageArgs
$ErrorActionPreference = 'Stop';

$packageName = 'CodeContracts'
$softwareName = 'Microsoft Code Contracts*'
$installerType = 'MSI'

$silentArgs = '/qn /norestart'
$validExitCodes = @(0, 3010, 1605, 1614, 1641)

$uninstalled = $false
[array]$key = Get-UninstallRegistryKey -SoftwareName $softwareName

if ($key.Count -eq 1) {
  $key | % {
    $silentArgs = "$($_.PSChildName) $silentArgs"

    $file = ''

    Uninstall-ChocolateyPackage -PackageName $packageName `
                                -FileType $installerType `
                                -SilentArgs "$silentArgs" `
                                -ValidExitCodes $validExitCodes `
                                -File "$file"
} elseif ($key.Count -eq 0) {
  Write-Warning "$packageName has already been uninstalled by other means."
} elseif ($key.Count -gt 1) {
  Write-Warning "$key.Count matches found!"
  Write-Warning "To prevent accidental data loss, no programs will be uninstalled."
  Write-Warning "Please alert package maintainer the following keys were matched:"
  $key | % {Write-Warning "- $_.DisplayName"}

Log in or click on link to see number of positives.

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.

Version Downloads Last Updated Status
CodeContracts 1.10.20606.1-rc2 417 Thursday, September 8, 2016 Exempted
Discussion for the CodeContracts Package

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  • Tell us what you love about the package or CodeContracts, or tell us what needs improvement.
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