[Ubuntu] Migrate tests for common tools to Pester (part 3) (#2337)

* add test for Git

* Add Heroku

* Add hhvm

* Add Homebrew

* Add Julia

* Add kind

* Add Kubernetes Tools

* Remove kind and homebrew validate

* replace capital letter

* Add Leiningen

* add source to Leiningen

* Add Mercurial

* Add conda

* Add Netlify

* Add packer

* Add pollinate

* Add Pulumi

* Add Phantomjs

* Add Haveged

* Fix for kubectl

* Fix julia installation

* Add installer_script_folder env variable to run tests in brew provisioner

* Add delay after reboot

* Adjust pause settings

images/linux/scripts/installers/pulumi.sh

@@ -6,6 +6,7 @@
 
 # Source the helpers for use with the script
 source $HELPER_SCRIPTS/install.sh
+source $HELPER_SCRIPTS/invoke-tests.sh
 
 # Install Pulumi
 VERSION=$(curl --fail --silent -L "https://www.pulumi.com/latest-version")
@@ -13,9 +14,4 @@ TARBALL_URL="https://get.pulumi.com/releases/sdk/pulumi-v${VERSION}-linux-x64.ta
 download_with_retries ${TARBALL_URL} "/tmp" pulumi-v${VERSION}.tar.gz
 tar --strip=1 -xvf /tmp/pulumi-v${VERSION}.tar.gz -C /usr/local/bin
 
-# Run tests to determine that the software installed as expected
-echo "Testing to make sure that script performed as expected, and basic scenarios work"
-if ! command -v pulumi ; then
-    echo "Pulumi was not installed"
-    exit 1
-fi
+invoke_tests "Tools" "Pulumi"