[macOS] add pester tests to install scripts part-1. (#2286)

* [macOS] add pester tests to install scripts part-1.

* changed version

* added changes related to common utils installation

* added source tests file

* removed tests from homebrew

* moved jq to homebrew

* fix nitpicks

* incorrect things are fixed.

* fixed some mistakes in the text

* commonutils changed.

* remove swiftlint installation from toolsets

* removed useless string

images/macos/provision/core/miniconda.sh

@@ -1,4 +1,5 @@
 #!/bin/bash -e -o pipefail
+source ~/utils/invoke-tests.sh
 
 MINICONDA_INSTALLER="/tmp/miniconda.sh"
 curl -sL https://repo.continuum.io/miniconda/Miniconda3-latest-MacOSX-x86_64.sh -o $MINICONDA_INSTALLER
@@ -9,4 +10,6 @@ sudo ln -s /usr/local/miniconda/bin/conda /usr/local/bin/conda
 
 if [ -d "$HOME/.conda" ]; then
     sudo chown -R $USER "$HOME/.conda"
-fi
+fi
+
+invoke_tests "Common" "Miniconda"