diff --git a/appveyor-windows-build-dotnet.yml b/appveyor-windows-build-dotnet.yml
new file mode 100644
index 0000000000..22aec59923
--- /dev/null
+++ b/appveyor-windows-build-dotnet.yml
@@ -0,0 +1,71 @@
+version: 1.0.{build}
+image: Windows Server 2019
+build: off
+
+# Change the clone folder to somewhere in "D:\" because this is shared by default with Docker. We need this to mount folders.
+clone_folder: D:\source
+
+environment:
+  AWS_DEFAULT_REGION: us-east-1
+  SAM_CLI_DEV: 1
+  APPVEYOR_CI_OVERRIDE: 1
+
+  # In Windows, tempdir is usually in C:\. But in AppVeyor only D:\ is shared in Docker. 
+  # Therefore change TEMPDIR it to D: for invoke tests to work. Python uses $TMPDIR envvar
+  # to find root of tempdir
+  TMPDIR: D:\tmp
+  TEMP: D:\tmp
+  TMP: D:\tmp
+
+  # MSI Installers only use Py3.6.6. It is sufficient to test with this version here.
+  PYTHON_HOME: "C:\\Python36-x64"
+  PYTHON_SCRIPTS: "C:\\Python36-x64\\Scripts"
+  PYTHON_EXE: "C:\\Python36-x64\\python.exe"
+  PYTHON_VERSION: '3.6.8'
+  PYTHON_ARCH: '64'
+  HOME: 'C:\Users\appveyor'
+  HOMEDRIVE: 'C:'
+  HOMEPATH: 'C:\Users\appveyor'
+
+init:
+  # Uncomment this for RDP
+  - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+  - ps: gcim Win32_Processor | % { "$($_.NumberOfLogicalProcessors) logical CPUs" }
+  - ps: gcim Win32_OperatingSystem | % { "$([int]($_.TotalVisibleMemorySize/1mb)) Gb" }
+
+
+install:
+
+    # Make sure the temp directory exists for Python to use.
+    - ps: "mkdir -Force D:\\tmp"
+    - "SET PATH=%PYTHON_HOME%;%PATH%"
+    - "echo %PYTHON_HOME%"
+    - "echo %PATH%"
+    - "python --version"
+
+    # Upgrade setuptools, wheel and virtualenv
+    - "python -m pip install --upgrade setuptools wheel virtualenv"
+
+    # Create new virtual environment with chosen python version and activate it
+    - "python -m virtualenv venv"
+    - "venv\\Scripts\\activate"
+    - "python --version"
+
+    # Actually install SAM CLI's dependencies
+    - "pip install -e \".[dev]\""
+
+    # Switch to Docker Linux containers
+    - ps: Switch-DockerLinux
+
+    # Echo final Path
+    - "echo %PATH%"
+
+test_script:
+    # Reactivate virtualenv before running tests
+    - "venv\\Scripts\\activate"
+    - "docker system prune -a -f"
+    - "pytest -vv tests/integration/buildcmd/test_build_cmd.py -k TestBuildCommand_Dotnet_cli_package"
+
+# Uncomment for RDP
+# on_finish:
+#   - ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
diff --git a/appveyor-windows-build-java.yml b/appveyor-windows-build-java.yml
new file mode 100644
index 0000000000..ab3b93b399
--- /dev/null
+++ b/appveyor-windows-build-java.yml
@@ -0,0 +1,90 @@
+version: 1.0.{build}
+image: Windows Server 2019
+build: off
+
+# Change the clone folder to somewhere in "D:\" because this is shared by default with Docker. We need this to mount folders.
+clone_folder: D:\source
+
+environment:
+  AWS_DEFAULT_REGION: us-east-1
+  SAM_CLI_DEV: 1
+  APPVEYOR_CI_OVERRIDE: 1
+
+  # In Windows, tempdir is usually in C:\. But in AppVeyor only D:\ is shared in Docker. 
+  # Therefore change TEMPDIR it to D: for invoke tests to work. Python uses $TMPDIR envvar
+  # to find root of tempdir
+  TMPDIR: D:\tmp
+  TEMP: D:\tmp
+  TMP: D:\tmp
+
+  # MSI Installers only use Py3.6.6. It is sufficient to test with this version here.
+  PYTHON_HOME: "C:\\Python36-x64"
+  PYTHON_SCRIPTS: "C:\\Python36-x64\\Scripts"
+  PYTHON_EXE: "C:\\Python36-x64\\python.exe"
+  PYTHON_VERSION: '3.6.8'
+  PYTHON_ARCH: '64'
+  HOME: 'C:\Users\appveyor'
+  HOMEDRIVE: 'C:'
+  HOMEPATH: 'C:\Users\appveyor'
+
+  matrix:
+    - optional_gate: true
+
+matrix:
+  allow_failures:
+    - optional_gate: true
+
+init:
+  # Uncomment this for RDP
+  - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+  - ps: gcim Win32_Processor | % { "$($_.NumberOfLogicalProcessors) logical CPUs" }
+  - ps: gcim Win32_OperatingSystem | % { "$([int]($_.TotalVisibleMemorySize/1mb)) Gb" }
+
+
+install:
+
+    # Make sure the temp directory exists for Python to use.
+    - ps: "mkdir -Force D:\\tmp"
+    - "SET PATH=%PYTHON_HOME%;%PATH%"
+    - "echo %PYTHON_HOME%"
+    - "echo %PATH%"
+    - "python --version"
+
+    # Upgrade setuptools, wheel and virtualenv
+    - "python -m pip install --upgrade setuptools wheel virtualenv"
+
+    # Create new virtual environment with chosen python version and activate it
+    - "python -m virtualenv venv"
+    - "venv\\Scripts\\activate"
+    - "python --version"
+
+    # Actually install SAM CLI's dependencies
+    - "pip install -e \".[dev]\""
+
+    # setup Java, Maven and Gradle
+    - "refreshenv"
+    - "choco install jdk8 -y --force"
+    - "refreshenv"
+    - "choco install maven -y --force"
+    - "refreshenv"
+    - "choco install gradle -y --force"
+    - "refreshenv"
+    - "java -version"
+    - "gradle -v"
+    - "mvn --version"
+
+    # Switch to Docker Linux containers
+    - ps: Switch-DockerLinux
+
+    # Echo final Path
+    - "echo %PATH%"
+
+test_script:
+    # Reactivate virtualenv before running tests
+    - "venv\\Scripts\\activate"
+    - "docker system prune -a -f"
+    - "pytest -vv tests/integration/buildcmd/test_build_cmd.py -k TestBuildCommand_Java"
+
+# Uncomment for RDP
+# on_finish:
+#   - ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
diff --git a/appveyor-windows-build-nodejs.yml b/appveyor-windows-build-nodejs.yml
new file mode 100644
index 0000000000..bfbdd76833
--- /dev/null
+++ b/appveyor-windows-build-nodejs.yml
@@ -0,0 +1,77 @@
+version: 1.0.{build}
+image: Windows Server 2019
+build: off
+
+# Change the clone folder to somewhere in "D:\" because this is shared by default with Docker. We need this to mount folders.
+clone_folder: D:\source
+
+environment:
+  AWS_DEFAULT_REGION: us-east-1
+  SAM_CLI_DEV: 1
+  APPVEYOR_CI_OVERRIDE: 1
+
+  # In Windows, tempdir is usually in C:\. But in AppVeyor only D:\ is shared in Docker. 
+  # Therefore change TEMPDIR it to D: for invoke tests to work. Python uses $TMPDIR envvar
+  # to find root of tempdir
+  TMPDIR: D:\tmp
+  TEMP: D:\tmp
+  TMP: D:\tmp
+
+  # MSI Installers only use Py3.6.6. It is sufficient to test with this version here.
+  PYTHON_HOME: "C:\\Python36-x64"
+  PYTHON_SCRIPTS: "C:\\Python36-x64\\Scripts"
+  PYTHON_EXE: "C:\\Python36-x64\\python.exe"
+  PYTHON_VERSION: '3.6.8'
+  PYTHON_ARCH: '64'
+  HOME: 'C:\Users\appveyor'
+  HOMEDRIVE: 'C:'
+  HOMEPATH: 'C:\Users\appveyor'
+
+init:
+  # Uncomment this for RDP
+  - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+  - ps: gcim Win32_Processor | % { "$($_.NumberOfLogicalProcessors) logical CPUs" }
+  - ps: gcim Win32_OperatingSystem | % { "$([int]($_.TotalVisibleMemorySize/1mb)) Gb" }
+
+
+install:
+
+    # Make sure the temp directory exists for Python to use.
+    - ps: "mkdir -Force D:\\tmp"
+    - "SET PATH=%PYTHON_HOME%;%PATH%"
+    - "echo %PYTHON_HOME%"
+    - "echo %PATH%"
+    - "python --version"
+
+    # Upgrade setuptools, wheel and virtualenv
+    - "python -m pip install --upgrade setuptools wheel virtualenv"
+
+    # Create new virtual environment with chosen python version and activate it
+    - "python -m virtualenv venv"
+    - "venv\\Scripts\\activate"
+    - "python --version"
+
+    # Actually install SAM CLI's dependencies
+    - "pip install -e \".[dev]\""
+
+
+    # To run Nodejs workflow integ tests
+    - "choco install nodejs-lts -y --force"
+    - "refreshenv"
+
+
+    # Switch to Docker Linux containers
+    - ps: Switch-DockerLinux
+
+    # Echo final Path
+    - "echo %PATH%"
+
+test_script:
+    # Reactivate virtualenv before running tests
+    - "venv\\Scripts\\activate"
+    - "docker system prune -a -f"
+    - "pytest -vv tests/integration/buildcmd/test_build_cmd.py -k TestBuildCommand_NodeFunctions"
+
+# Uncomment for RDP
+# on_finish:
+#   - ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
diff --git a/appveyor-windows-build-python.yml b/appveyor-windows-build-python.yml
new file mode 100644
index 0000000000..a20d9b06ce
--- /dev/null
+++ b/appveyor-windows-build-python.yml
@@ -0,0 +1,72 @@
+version: 1.0.{build}
+image: Windows Server 2019
+build: off
+
+# Change the clone folder to somewhere in "D:\" because this is shared by default with Docker. We need this to mount folders.
+clone_folder: D:\source
+
+environment:
+  AWS_DEFAULT_REGION: us-east-1
+  SAM_CLI_DEV: 1
+  APPVEYOR_CI_OVERRIDE: 1
+
+  # In Windows, tempdir is usually in C:\. But in AppVeyor only D:\ is shared in Docker. 
+  # Therefore change TEMPDIR it to D: for invoke tests to work. Python uses $TMPDIR envvar
+  # to find root of tempdir
+  TMPDIR: D:\tmp
+  TEMP: D:\tmp
+  TMP: D:\tmp
+
+  # MSI Installers only use Py3.6.6. It is sufficient to test with this version here.
+  PYTHON_HOME: "C:\\Python36-x64"
+  PYTHON_SCRIPTS: "C:\\Python36-x64\\Scripts"
+  PYTHON_EXE: "C:\\Python36-x64\\python.exe"
+  PYTHON_VERSION: '3.6.8'
+  PYTHON_ARCH: '64'
+  HOME: 'C:\Users\appveyor'
+  HOMEDRIVE: 'C:'
+  HOMEPATH: 'C:\Users\appveyor'
+
+init:
+  # Uncomment this for RDP
+  - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+  - ps: gcim Win32_Processor | % { "$($_.NumberOfLogicalProcessors) logical CPUs" }
+  - ps: gcim Win32_OperatingSystem | % { "$([int]($_.TotalVisibleMemorySize/1mb)) Gb" }
+
+
+install:
+
+    # Make sure the temp directory exists for Python to use.
+    - ps: "mkdir -Force D:\\tmp"
+    - "SET PATH=%PYTHON_HOME%;%PATH%"
+    - "echo %PYTHON_HOME%"
+    - "echo %PATH%"
+    - "python --version"
+
+    # Upgrade setuptools, wheel and virtualenv
+    - "python -m pip install --upgrade setuptools wheel virtualenv"
+
+    # Create new virtual environment with chosen python version and activate it
+    - "python -m virtualenv venv"
+    - "venv\\Scripts\\activate"
+    - "python --version"
+
+    # Actually install SAM CLI's dependencies
+    - "pip install -e \".[dev]\""
+   # Switch to Docker Linux containers
+    - ps: Switch-DockerLinux
+
+    # Echo final Path
+    - "echo %PATH%"
+
+test_script:
+    # Reactivate virtualenv before running tests
+    - "venv\\Scripts\\activate"
+    - "docker system prune -a -f"
+    - "pytest -vv tests/integration/buildcmd/test_build_cmd.py -k TestBuildCommand_PythonFunctions"
+    - "pytest -vv tests/integration/buildcmd/test_build_cmd.py -k TestBuildCommand_SingleFunctionBuilds"
+    - "pytest -vv tests/integration/buildcmd/test_build_cmd.py -k TestBuildCommand_ErrorCases"
+
+# Uncomment for RDP
+# on_finish:
+#   - ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
diff --git a/appveyor-windows-build-ruby.yml b/appveyor-windows-build-ruby.yml
new file mode 100644
index 0000000000..18bbf966ec
--- /dev/null
+++ b/appveyor-windows-build-ruby.yml
@@ -0,0 +1,88 @@
+version: 1.0.{build}
+image: Windows Server 2019
+build: off
+
+# Change the clone folder to somewhere in "D:\" because this is shared by default with Docker. We need this to mount folders.
+clone_folder: D:\source
+
+environment:
+  AWS_DEFAULT_REGION: us-east-1
+  SAM_CLI_DEV: 1
+  APPVEYOR_CI_OVERRIDE: 1
+
+  # In Windows, tempdir is usually in C:\. But in AppVeyor only D:\ is shared in Docker. 
+  # Therefore change TEMPDIR it to D: for invoke tests to work. Python uses $TMPDIR envvar
+  # to find root of tempdir
+  TMPDIR: D:\tmp
+  TEMP: D:\tmp
+  TMP: D:\tmp
+
+  # MSI Installers only use Py3.6.6. It is sufficient to test with this version here.
+  PYTHON_HOME: "C:\\Python36-x64"
+  PYTHON_SCRIPTS: "C:\\Python36-x64\\Scripts"
+  PYTHON_EXE: "C:\\Python36-x64\\python.exe"
+  PYTHON_VERSION: '3.6.8'
+  PYTHON_ARCH: '64'
+  HOME: 'C:\Users\appveyor'
+  HOMEDRIVE: 'C:'
+  HOMEPATH: 'C:\Users\appveyor'
+
+  matrix:
+    - optional_gate: true
+
+matrix:
+  allow_failures:
+    - optional_gate: true
+
+init:
+  # Uncomment this for RDP
+  - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+  - ps: gcim Win32_Processor | % { "$($_.NumberOfLogicalProcessors) logical CPUs" }
+  - ps: gcim Win32_OperatingSystem | % { "$([int]($_.TotalVisibleMemorySize/1mb)) Gb" }
+
+
+install:
+
+    # Make sure the temp directory exists for Python to use.
+    - ps: "mkdir -Force D:\\tmp"
+    - "SET PATH=%PYTHON_HOME%;%PATH%"
+    - "echo %PYTHON_HOME%"
+    - "echo %PATH%"
+    - "python --version"
+
+    # Upgrade setuptools, wheel and virtualenv
+    - "python -m pip install --upgrade setuptools wheel virtualenv"
+
+    # Create new virtual environment with chosen python version and activate it
+    - "python -m virtualenv venv"
+    - "venv\\Scripts\\activate"
+    - "python --version"
+
+    # Actually install SAM CLI's dependencies
+    - "pip install -e \".[dev]\""
+
+    # setup Ruby
+    - "choco install ruby --version 2.5.3.1 --force -y"
+    - "refreshenv"
+    - "ruby --version"
+    - "gem --version"
+    - "gem install bundler -v 2.0.2"
+    - "refreshenv"
+    - "bundler --version"
+    - "echo %PATH%"
+
+    # Switch to Docker Linux containers
+    - ps: Switch-DockerLinux
+
+    # Echo final Path
+    - "echo %PATH%"
+
+test_script:
+    # Reactivate virtualenv before running tests
+    - "venv\\Scripts\\activate"
+    - "docker system prune -a -f"
+    - "pytest -vv tests/integration/buildcmd/test_build_cmd.py -k TestBuildCommand_RubyFunctions"
+
+# Uncomment for RDP
+# on_finish:
+#   - ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
diff --git a/appveyor-windows.yml b/appveyor-windows.yml
index 2aca76c3ff..3243f006a6 100644
--- a/appveyor-windows.yml
+++ b/appveyor-windows.yml
@@ -40,6 +40,8 @@ install:
 
     # Make sure the temp directory exists for Python to use.
     - ps: "mkdir -Force D:\\tmp"
+    - "SET PATH=%PYTHON_HOME%;%PATH%"
+    - "echo %PYTHON_HOME%"
     - "echo %PATH%"
     - "python --version"
 
@@ -47,42 +49,13 @@ install:
     - "python -m pip install --upgrade setuptools wheel virtualenv"
 
     # Create new virtual environment with chosen python version and activate it
-    - "rm -rf venv"
-    - "dir C:\\Python36-x64"
-    - "virtualenv -p %PYTHON_EXE% venv"
+    - "python -m virtualenv venv"
     - "venv\\Scripts\\activate"
-    - "python -c \"import sys; print(sys.executable)\""
     - "python --version"
 
     # Actually install SAM CLI's dependencies
     - "pip install -e \".[dev]\""
 
-
-    # To run Nodejs workflow integ tests
-    - "choco install nodejs-lts -y --force"
-    - "refreshenv"
-    # setup Ruby
-    - "choco install ruby --version 2.5.3.1 --force -y"
-    - "refreshenv"
-    - "ruby --version"
-    - "gem --version"
-    - "gem install bundler -v 2.0.2"
-    - "refreshenv"
-    - "bundler --version"
-    - "echo %PATH%"
-
-    # setup Java, Maven and Gradle
-    - "refreshenv"
-    - "choco install jdk8 -y --force"
-    - "refreshenv"
-    - "choco install maven -y --force"
-    - "refreshenv"
-    - "choco install gradle -y --force"
-    - "refreshenv"
-    - "java -version"
-    - "gradle -v"
-    - "mvn --version"
-
     # Switch to Docker Linux containers
     - ps: Switch-DockerLinux
 
diff --git a/tests/integration/buildcmd/test_build_cmd.py b/tests/integration/buildcmd/test_build_cmd.py
index a07ccc7e7c..fef5a26dea 100644
--- a/tests/integration/buildcmd/test_build_cmd.py
+++ b/tests/integration/buildcmd/test_build_cmd.py
@@ -11,13 +11,16 @@
 from parameterized import parameterized
 
 from .build_integ_base import BuildIntegBase
-from tests.testing_utils import IS_WINDOWS, RUNNING_ON_CI
+from tests.testing_utils import IS_WINDOWS, RUNNING_ON_CI, CI_OVERRIDE
 
 
 LOG = logging.getLogger(__name__)
 
 
-@skipIf(IS_WINDOWS and RUNNING_ON_CI, "Skip build tests on windows when running in CI")
+@skipIf(
+    ((IS_WINDOWS and RUNNING_ON_CI) and not CI_OVERRIDE),
+    "Skip build tests on windows when running in CI unless overridden",
+)
 class TestBuildCommand_PythonFunctions(BuildIntegBase):
 
     EXPECTED_FILES_GLOBAL_MANIFEST = set()
@@ -100,7 +103,10 @@ def _get_python_version(self):
         return "python{}.{}".format(sys.version_info.major, sys.version_info.minor)
 
 
-@skipIf(IS_WINDOWS and RUNNING_ON_CI, "Skip build tests on windows when running in CI")
+@skipIf(
+    ((IS_WINDOWS and RUNNING_ON_CI) and not CI_OVERRIDE),
+    "Skip build tests on windows when running in CI unless overridden",
+)
 class TestBuildCommand_ErrorCases(BuildIntegBase):
     def test_unsupported_runtime(self):
         overrides = {"Runtime": "unsupportedpython", "CodeUri": "Python"}
@@ -116,7 +122,10 @@ def test_unsupported_runtime(self):
         self.assertIn("Build Failed", process_stdout)
 
 
-@skipIf(IS_WINDOWS and RUNNING_ON_CI, "Skip build tests on windows when running in CI")
+@skipIf(
+    ((IS_WINDOWS and RUNNING_ON_CI) and not CI_OVERRIDE),
+    "Skip build tests on windows when running in CI unless overridden",
+)
 class TestBuildCommand_NodeFunctions(BuildIntegBase):
 
     EXPECTED_FILES_GLOBAL_MANIFEST = set()
@@ -184,7 +193,10 @@ def _verify_built_artifact(self, build_dir, function_logical_id, expected_files,
         self.assertEqual(actual_files, expected_modules)
 
 
-@skipIf(IS_WINDOWS and RUNNING_ON_CI, "Skip build tests on windows when running in CI")
+@skipIf(
+    ((IS_WINDOWS and RUNNING_ON_CI) and not CI_OVERRIDE),
+    "Skip build tests on windows when running in CI unless overridden",
+)
 class TestBuildCommand_RubyFunctions(BuildIntegBase):
 
     EXPECTED_FILES_GLOBAL_MANIFEST = set()
@@ -251,7 +263,10 @@ def _verify_built_artifact(self, build_dir, function_logical_id, expected_files,
         self.assertTrue(any([True if self.EXPECTED_RUBY_GEM in gem else False for gem in os.listdir(str(gem_path))]))
 
 
-@skipIf(IS_WINDOWS and RUNNING_ON_CI, "Skip build tests on windows when running in CI")
+@skipIf(
+    ((IS_WINDOWS and RUNNING_ON_CI) and not CI_OVERRIDE),
+    "Skip build tests on windows when running in CI unless overridden",
+)
 class TestBuildCommand_Java(BuildIntegBase):
 
     EXPECTED_FILES_PROJECT_MANIFEST_GRADLE = {"aws", "lib", "META-INF"}
@@ -340,7 +355,10 @@ def _change_to_unix_line_ending(self, path):
             open_file.write(content)
 
 
-@skipIf(IS_WINDOWS and RUNNING_ON_CI, "Skip build tests on windows when running in CI")
+@skipIf(
+    ((IS_WINDOWS and RUNNING_ON_CI) and not CI_OVERRIDE),
+    "Skip build tests on windows when running in CI unless overridden",
+)
 class TestBuildCommand_Dotnet_cli_package(BuildIntegBase):
 
     FUNCTION_LOGICAL_ID = "Function"
@@ -438,7 +456,10 @@ def _verify_built_artifact(self, build_dir, function_logical_id, expected_files)
         self.assertEqual(actual_files, expected_files)
 
 
-@skipIf(IS_WINDOWS and RUNNING_ON_CI, "Skip build tests on windows when running in CI")
+@skipIf(
+    ((IS_WINDOWS and RUNNING_ON_CI) and not CI_OVERRIDE),
+    "Skip build tests on windows when running in CI unless overridden",
+)
 class TestBuildCommand_SingleFunctionBuilds(BuildIntegBase):
     template = "many-functions-template.yaml"
 
diff --git a/tests/testing_utils.py b/tests/testing_utils.py
index ce0b3fc0ff..293e6e9676 100644
--- a/tests/testing_utils.py
+++ b/tests/testing_utils.py
@@ -4,3 +4,4 @@
 IS_WINDOWS = platform.system().lower() == "windows"
 RUNNING_ON_CI = os.environ.get("APPVEYOR", False)
 RUNNING_TEST_FOR_MASTER_ON_CI = os.environ.get("APPVEYOR_REPO_BRANCH", "master") != "master"
+CI_OVERRIDE = os.environ.get("APPVEYOR_CI_OVERRIDE", False)