diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6e201cad47..ca6684df73 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -41,13 +41,6 @@ function(add_geojs_test test_name)
   set_property(TEST "notes-report" APPEND PROPERTY DEPENDS "${test_name}")
 endfunction()
 
-# set variables for girder.cmake
-set(Girder_KEY_DIR "${CMAKE_CURRENT_SOURCE_DIR}/testing/test-data")
-set(Girder_DATA_DIR "${GEOJS_DEPLOY_DIR}/data")
-include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/girder.cmake)
-
-add_download_target()
-
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/testing/test-runners/geojs_test_runner.py.in
                ${CMAKE_CURRENT_BINARY_DIR}/test/geojs_test_runner.py
 )
@@ -73,12 +66,37 @@ add_test(
 )
 set_property(TEST "notes-report" APPEND PROPERTY DEPENDS "notes-reset")
 
-add_custom_target(
-  data_files
-  ALL
-  DEPENDS ${Girder_DOWNLOAD_FILES}
-)
-add_test(NAME get_data_files COMMAND "${CMAKE_COMMAND}" --build ${CMAKE_BINARY_DIR} --target data_files)
+# Use ExternalData to download all referenced files in tests/external-data
+include(ExternalData)
+set(ExternalData_URL_TEMPLATES "https://data.kitware.com/api/v1/file/hashsum/%(algo)/%(hash)/download")
+set(ExternalData_BINARY_ROOT "${GEOJS_DEPLOY_DIR}/data")
+set(ExternalData_SOURCE_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/tests/external-data")
+# Get a list of files to download based on the name *.sha512
+file(GLOB data_files_list "${ExternalData_SOURCE_ROOT}/*.sha512")
+# Obtain the files using ExternalData
+foreach(data_file ${data_files_list})
+  string(REGEX REPLACE "^(.*)\\.sha512$" "\\1" base_file "${data_file}")
+  ExternalData_Expand_Arguments(data_files tmp DATA{${base_file}})
+endforeach()
+# Add a target to get the files
+ExternalData_Add_Target(data_files)
+# For any file that is a .tgz file, expand it after we get it
+foreach(data_file ${data_files_list})
+  string(REGEX REPLACE "^(.*)\\.sha512$" "\\1" base_file "${data_file}")
+  get_filename_component(base_file "${base_file}" NAME)
+  get_filename_component(base_fileext "${base_file}" EXT)
+  if("${base_fileext}" STREQUAL ".tgz")
+    get_filename_component(base_filename "${base_file}" NAME_WE)
+    add_custom_command(
+      TARGET data_files POST_BUILD
+      DEPENDS "${ExternalData_BINARY_ROOT}/${base_file}"
+      COMMAND ${CMAKE_COMMAND} -E make_directory "${ExternalData_BINARY_ROOT}/${base_filename}"
+      COMMAND ${CMAKE_COMMAND} -E chdir "${ExternalData_BINARY_ROOT}/${base_filename}" tar zxf "${ExternalData_BINARY_ROOT}/${base_file}"
+    )
+  endif()
+endforeach()
+# Create a test that gets this target
+add_test(NAME get_data_files COMMAND "${CMAKE_COMMAND}" --build "${CMAKE_BINARY_DIR}" --target data_files)
 
 if(HEADLESS_TESTS)
   add_test(
diff --git a/cmake/configure-js-coverage-test.cmake b/cmake/configure-js-coverage-test.cmake
deleted file mode 100644
index 90d08666e7..0000000000
--- a/cmake/configure-js-coverage-test.cmake
+++ /dev/null
@@ -1,13 +0,0 @@
-set(alljs ${CMAKE_BINARY_DIR}/test-cases/js-unit-tests/all-js-unit-tests.js)
-
-file(WRITE ${alljs} "")
-foreach(f IN LISTS JS_UNIT_TEST_CASES)
-    file(READ "${f}" js)
-    file(APPEND ${alljs} "${js}")
-endforeach()
-
-file(READ ${alljs} TEST_SOURCE)
-configure_file(
-    ${SOURCE_DIR}/testing/test-runners/coverage-runner.html.in
-    ${DEPLOY_DIR}/test/js-coverage/geojs-coverage.html
-)
diff --git a/cmake/configure-js-unit-test.cmake b/cmake/configure-js-unit-test.cmake
deleted file mode 100644
index fdbd121040..0000000000
--- a/cmake/configure-js-unit-test.cmake
+++ /dev/null
@@ -1,5 +0,0 @@
-file(READ "${SOURCE_FILE}" TEST_SOURCE)
-configure_file(
-    ${SOURCE_DIR}/testing/test-runners/jasmine-runner.html.in
-    ${TEST_HTML}
-)
diff --git a/cmake/girder.cmake b/cmake/girder.cmake
deleted file mode 100644
index f2bdeec5c6..0000000000
--- a/cmake/girder.cmake
+++ /dev/null
@@ -1,127 +0,0 @@
-# - Configure a project for downloading test data from a Girder server
-# Include this module in the top CMakeLists.txt file of a project to
-# enable downloading test data from Girder. Requires CTest module.
-#   project(MyProject)
-#   ...
-#   include(CTest)
-#   include(Girder3)
-#
-# To use this module, set the following variable in your script:
-#   Girder_REST_URL - URL of the Girder server's REST API
-# Other optional variables:
-#   Girder_DATA_DIR         - Where to place downloaded files
-#                          - Defaults to PROJECT_BINARY_DIR/Girder_Data
-#   Girder_KEY_DIR          - Where the key files are located
-#                          - Defaults to PROJECT_SOURCE_DIR/Girder_Keys
-#   Girder_DOWNLOAD_TIMEOUT - Timeout for download stage (default 0)
-#  ---------------------- Authentication -------------------------
-# For authenticated access, you must also have the following variables set
-#   Girder_USER             - The email of the user to authenticate as
-#   Girder_DEFAULT_API_KEY  - The user's Default api key
-#
-#=============================================================================
-# Copyright 2010 Kitware, Inc.
-#
-# Distributed under the OSI-approved BSD License (the "License");
-# see accompanying file Copyright.txt for details.
-#
-# This software is distributed WITHOUT ANY WARRANTY; without even the
-# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-# See the License for more information.
-#=============================================================================
-
-function(add_download_target)
-
-  set(fetch_scripts_dir "${CMAKE_CURRENT_BINARY_DIR}/Girder_FetchScripts")
-  file(MAKE_DIRECTORY "${fetch_scripts_dir}")
-
-  if(NOT DEFINED Girder_DOWNLOAD_TIMEOUT)
-    set(Girder_DOWNLOAD_TIMEOUT_STR "")
-  else(NOT DEFINED Girder_DOWNLOAD_TIMEOUT)
-    set(Girder_DOWNLOAD_TIMEOUT_STR "TIMEOUT ${Girder_DOWNLOAD_TIMEOUT}")
-  endif(NOT DEFINED Girder_DOWNLOAD_TIMEOUT)
-
-  file(GLOB urlfiles "${Girder_KEY_DIR}/*.url") 
-
-  set(downloadFiles "")
-
-  foreach(urlfile ${urlfiles})
-    _process_urlfile(${urlfile} 1)
-  endforeach()
-
-  set(Girder_DOWNLOAD_FILES "${downloadFiles}" PARENT_SCOPE)
-endfunction(add_download_target)
-
-# Helper macro to write the download scripts for Girder.*{} arguments
-macro(_process_urlfile urlFile extractTgz)
-
-
-  # Split up the checksum extension from the real filename
-  string(REGEX REPLACE "\\.[^\\.]*$" "" base_file "${urlFile}")
-  get_filename_component(base_filename "${base_file}" NAME)
-  get_filename_component(base_fileext  "${base_file}" EXT)
-  string(REGEX REPLACE "\\.url$" ".md5" keyFile "${urlFile}")
-  set(checksum "X")
-
-  # Resolve file location
-  if(EXISTS "${keyFile}")
-
-    # Obtain the checksum
-    file(READ "${keyFile}" checksum)
-    string(STRIP ${checksum} checksum)
-
-  endif(EXISTS "${keyFile}")
-
-  file(READ "${urlFile}" url)
-  string(STRIP ${url} url)
-
-  # Write the test script file for downloading
-  if(UNIX)
-    set(cmake_symlink create_symlink)
-  else()
-    set(cmake_symlink copy) # Windows has no symlinks; copy instead.
-  endif()
-  file(WRITE "${fetch_scripts_dir}/fetch_${checksum}_${base_filename}.cmake"
-
-# Start file content
-"message(STATUS \"Data is here: ${url}\")
-file(DOWNLOAD \"${url}\" \"${Girder_DATA_DIR}/${base_filename}\" ${Girder_DOWNLOAD_TIMEOUT_STR} STATUS status)
-list(GET status 0 exitCode)
-list(GET status 1 errMsg)
-if(NOT exitCode EQUAL 0)
-  file(REMOVE \"${Girder_DATA_DIR}/${base_filename}\")
-  message(FATAL_ERROR \"Error downloading ${base_filename}: \${errMsg}\")
-endif(NOT exitCode EQUAL 0)
-
-execute_process(COMMAND \"${CMAKE_COMMAND}\" -E md5sum \"${Girder_DATA_DIR}/${base_filename}\" OUTPUT_VARIABLE output)
-string(SUBSTRING \${output} 0 32 computedChecksum)
-
-if((NOT ${checksum} STREQUAL X) AND (NOT computedChecksum STREQUAL ${checksum}))
-  file(READ \"${Girder_DATA_DIR}/${base_filename}\" serverResponse)
-  file(REMOVE \"${Girder_DATA_DIR}/${base_filename}\")
-  message(FATAL_ERROR \"Error: Computed checksum (\${computedChecksum}) did not match expected (${checksum}). Server response: \${serverResponse}\")
-endif((NOT ${checksum} STREQUAL X) AND (NOT computedChecksum STREQUAL ${checksum}))
-")
-# End file content
-
-if("${base_fileext}" STREQUAL ".tgz")
-    file(APPEND "${fetch_scripts_dir}/fetch_${checksum}_${base_filename}.cmake"
-        # Start file content
-        "# Extract the contents of the tgz
-        get_filename_component(dirName \"${base_filename}\" NAME_WE)
-        file(MAKE_DIRECTORY \"${Girder_DATA_DIR}/\${dirName}\")
-        execute_process(COMMAND \"${CMAKE_COMMAND}\" -E tar xzf \"${Girder_DATA_DIR}/${base_filename}\"
-                        WORKING_DIRECTORY \"${Girder_DATA_DIR}/\${dirName}\")
-        "
-        # End file content
-    )
-endif()
-
-  add_custom_command(OUTPUT "${Girder_DATA_DIR}/${base_filename}"
-    COMMAND ${CMAKE_COMMAND} -P "${fetch_scripts_dir}/fetch_${checksum}_${base_filename}.cmake"
-    DEPENDS "${urlfile}"
-    COMMENT "Downloading ${base_filename}"
-  )
-
-  list(APPEND downloadFiles "${Girder_DATA_DIR}/${base_filename}")
-endmacro(_process_urlfile)
diff --git a/testing/test-data/AdderallCities2015.csv.md5 b/testing/test-data/AdderallCities2015.csv.md5
deleted file mode 100644
index 6ae14cdcfe..0000000000
--- a/testing/test-data/AdderallCities2015.csv.md5
+++ /dev/null
@@ -1 +0,0 @@
-6f92a0e2346c48aad2c7cd5e7aa0005f
\ No newline at end of file
diff --git a/testing/test-data/AdderallCities2015.csv.url b/testing/test-data/AdderallCities2015.csv.url
deleted file mode 100644
index b2c213d895..0000000000
--- a/testing/test-data/AdderallCities2015.csv.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/57360bda8d777f68be8f3eac/download
diff --git a/testing/test-data/base-images.tgz.md5 b/testing/test-data/base-images.tgz.md5
deleted file mode 100644
index 7735d4198f..0000000000
--- a/testing/test-data/base-images.tgz.md5
+++ /dev/null
@@ -1 +0,0 @@
-24a2ffe0807138fe13c33ddeccb2b426
\ No newline at end of file
diff --git a/testing/test-data/base-images.tgz.url b/testing/test-data/base-images.tgz.url
deleted file mode 100644
index d0c36ceb1a..0000000000
--- a/testing/test-data/base-images.tgz.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/5af1fcff8d777f0685797d19/download
\ No newline at end of file
diff --git a/testing/test-data/blue.jpg.md5 b/testing/test-data/blue.jpg.md5
deleted file mode 100644
index 408ff03700..0000000000
--- a/testing/test-data/blue.jpg.md5
+++ /dev/null
@@ -1 +0,0 @@
-06c5939e998ed30a736fd98b382f5fd2
diff --git a/testing/test-data/blue.jpg.url b/testing/test-data/blue.jpg.url
deleted file mode 100644
index 1f542c1b9a..0000000000
--- a/testing/test-data/blue.jpg.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/562e5edf8d777f7522dbeed0/download
diff --git a/testing/test-data/cities.csv.md5 b/testing/test-data/cities.csv.md5
deleted file mode 100644
index 46f546065a..0000000000
--- a/testing/test-data/cities.csv.md5
+++ /dev/null
@@ -1 +0,0 @@
-612e05ae9ec9d1950ae945d64151df22
\ No newline at end of file
diff --git a/testing/test-data/cities.csv.url b/testing/test-data/cities.csv.url
deleted file mode 100644
index d832a22c09..0000000000
--- a/testing/test-data/cities.csv.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/560a89508d777f7bfaadd3d7/download
diff --git a/testing/test-data/countries.json.md5 b/testing/test-data/countries.json.md5
deleted file mode 100644
index 09f96c454e..0000000000
--- a/testing/test-data/countries.json.md5
+++ /dev/null
@@ -1 +0,0 @@
-e9b71be9fa834c7ae473862fff77f894
\ No newline at end of file
diff --git a/testing/test-data/countries.json.url b/testing/test-data/countries.json.url
deleted file mode 100644
index 6b285ed921..0000000000
--- a/testing/test-data/countries.json.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/560a89518d777f7bfaadd3da/download
diff --git a/testing/test-data/earthquakes-video.webm.md5 b/testing/test-data/earthquakes-video.webm.md5
deleted file mode 100644
index 275095ad91..0000000000
--- a/testing/test-data/earthquakes-video.webm.md5
+++ /dev/null
@@ -1 +0,0 @@
-44c731584651c5f3eb22b1d67b05f6c6
diff --git a/testing/test-data/earthquakes-video.webm.url b/testing/test-data/earthquakes-video.webm.url
deleted file mode 100644
index bae5bbccec..0000000000
--- a/testing/test-data/earthquakes-video.webm.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/59fc667c8d777f31ac648c51/download
diff --git a/testing/test-data/earthquakes.json.md5 b/testing/test-data/earthquakes.json.md5
deleted file mode 100644
index 0d74c5552d..0000000000
--- a/testing/test-data/earthquakes.json.md5
+++ /dev/null
@@ -1 +0,0 @@
-9247895af38e2faa36474fe72e02967e
\ No newline at end of file
diff --git a/testing/test-data/earthquakes.json.url b/testing/test-data/earthquakes.json.url
deleted file mode 100644
index 7ef66001f7..0000000000
--- a/testing/test-data/earthquakes.json.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/57360a968d777f68be8f3ea9/download
diff --git a/testing/test-data/grid.jpg.md5 b/testing/test-data/grid.jpg.md5
deleted file mode 100644
index 0cf5be51ba..0000000000
--- a/testing/test-data/grid.jpg.md5
+++ /dev/null
@@ -1 +0,0 @@
-26e86857de2e8c4c4fc808dfd6b12e95
\ No newline at end of file
diff --git a/testing/test-data/grid.jpg.url b/testing/test-data/grid.jpg.url
deleted file mode 100644
index bcce632edf..0000000000
--- a/testing/test-data/grid.jpg.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/560a89518d777f7bfaadd3dd/download
diff --git a/testing/test-data/hurricanes.json.md5 b/testing/test-data/hurricanes.json.md5
deleted file mode 100644
index ff4bc170b2..0000000000
--- a/testing/test-data/hurricanes.json.md5
+++ /dev/null
@@ -1 +0,0 @@
-7cf587e135cbfe6310ef8f1137d5cd54
\ No newline at end of file
diff --git a/testing/test-data/hurricanes.json.url b/testing/test-data/hurricanes.json.url
deleted file mode 100644
index cda3be5811..0000000000
--- a/testing/test-data/hurricanes.json.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/560a89518d777f7bfaadd3e0/download
diff --git a/testing/test-data/land_polygons.json.md5 b/testing/test-data/land_polygons.json.md5
deleted file mode 100644
index 2a98efdc0a..0000000000
--- a/testing/test-data/land_polygons.json.md5
+++ /dev/null
@@ -1 +0,0 @@
-f88d833b7614754e914ef56de76d889c
\ No newline at end of file
diff --git a/testing/test-data/land_polygons.json.url b/testing/test-data/land_polygons.json.url
deleted file mode 100644
index 450484bd8e..0000000000
--- a/testing/test-data/land_polygons.json.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/5762bd868d777f68be8f4017/download
diff --git a/testing/test-data/land_shallow_topo_2048.png.md5 b/testing/test-data/land_shallow_topo_2048.png.md5
deleted file mode 100644
index e0f66e8d27..0000000000
--- a/testing/test-data/land_shallow_topo_2048.png.md5
+++ /dev/null
@@ -1 +0,0 @@
-438667f9d98cfc407a723fe8817957f1
\ No newline at end of file
diff --git a/testing/test-data/land_shallow_topo_2048.png.url b/testing/test-data/land_shallow_topo_2048.png.url
deleted file mode 100644
index b64474044d..0000000000
--- a/testing/test-data/land_shallow_topo_2048.png.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/560a89518d777f7bfaadd3e3/download
diff --git a/testing/test-data/oahu-dense.json.md5 b/testing/test-data/oahu-dense.json.md5
deleted file mode 100644
index 848c89863a..0000000000
--- a/testing/test-data/oahu-dense.json.md5
+++ /dev/null
@@ -1 +0,0 @@
-1d9e59c3fb22b8d2e4320bef30036703
\ No newline at end of file
diff --git a/testing/test-data/oahu-dense.json.url b/testing/test-data/oahu-dense.json.url
deleted file mode 100644
index 9ee9af859b..0000000000
--- a/testing/test-data/oahu-dense.json.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/560a89528d777f7bfaadd3e6/download
diff --git a/testing/test-data/oahu-medium.json.md5 b/testing/test-data/oahu-medium.json.md5
deleted file mode 100644
index 1068442d41..0000000000
--- a/testing/test-data/oahu-medium.json.md5
+++ /dev/null
@@ -1 +0,0 @@
-1f7c4324577dcc314dad02e48f6077b0
\ No newline at end of file
diff --git a/testing/test-data/oahu-medium.json.url b/testing/test-data/oahu-medium.json.url
deleted file mode 100644
index c8fad67ac7..0000000000
--- a/testing/test-data/oahu-medium.json.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/5b16c6918d777f15ebe1ffe7/download
diff --git a/testing/test-data/oahu.json.md5 b/testing/test-data/oahu.json.md5
deleted file mode 100644
index 172634f6bc..0000000000
--- a/testing/test-data/oahu.json.md5
+++ /dev/null
@@ -1 +0,0 @@
-51954a3683e8d2bdc2f03ec0b3b55bdc
\ No newline at end of file
diff --git a/testing/test-data/oahu.json.url b/testing/test-data/oahu.json.url
deleted file mode 100644
index 7aa0963bf4..0000000000
--- a/testing/test-data/oahu.json.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/560a89528d777f7bfaadd3e9/download
diff --git a/testing/test-data/red.jpg.md5 b/testing/test-data/red.jpg.md5
deleted file mode 100644
index 71cbfb27da..0000000000
--- a/testing/test-data/red.jpg.md5
+++ /dev/null
@@ -1 +0,0 @@
-b83521e095bc1d0fe2bb7b1292daba2c
diff --git a/testing/test-data/red.jpg.url b/testing/test-data/red.jpg.url
deleted file mode 100644
index ba170765a2..0000000000
--- a/testing/test-data/red.jpg.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/562e5ee98d777f7522dbeed3/download
\ No newline at end of file
diff --git a/testing/test-data/roads.json.md5 b/testing/test-data/roads.json.md5
deleted file mode 100644
index f0630746ef..0000000000
--- a/testing/test-data/roads.json.md5
+++ /dev/null
@@ -1 +0,0 @@
-7327760ce067f055bb54abf7d25038ae
diff --git a/testing/test-data/roads.json.url b/testing/test-data/roads.json.url
deleted file mode 100644
index 1ded2bd301..0000000000
--- a/testing/test-data/roads.json.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/583343428d777f4bd537dded/download
diff --git a/testing/test-data/sample.json.md5 b/testing/test-data/sample.json.md5
deleted file mode 100644
index d507d1a729..0000000000
--- a/testing/test-data/sample.json.md5
+++ /dev/null
@@ -1 +0,0 @@
-4de4f2fdfda807fe52bdbbc254dedffa
\ No newline at end of file
diff --git a/testing/test-data/sample.json.url b/testing/test-data/sample.json.url
deleted file mode 100644
index ba94efe388..0000000000
--- a/testing/test-data/sample.json.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/560a89528d777f7bfaadd3ec/download
diff --git a/testing/test-data/spark.png.md5 b/testing/test-data/spark.png.md5
deleted file mode 100644
index 678b0b49d5..0000000000
--- a/testing/test-data/spark.png.md5
+++ /dev/null
@@ -1 +0,0 @@
-f8287538c40d9ddad473298d55a257df
\ No newline at end of file
diff --git a/testing/test-data/spark.png.url b/testing/test-data/spark.png.url
deleted file mode 100644
index ef41d44307..0000000000
--- a/testing/test-data/spark.png.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/560a89528d777f7bfaadd3ef/download
diff --git a/testing/test-data/temperature_data.tsv.md5 b/testing/test-data/temperature_data.tsv.md5
deleted file mode 100644
index 9c913f3721..0000000000
--- a/testing/test-data/temperature_data.tsv.md5
+++ /dev/null
@@ -1 +0,0 @@
-d42411447bcaab4b306345d018a42952
diff --git a/testing/test-data/temperature_data.tsv.url b/testing/test-data/temperature_data.tsv.url
deleted file mode 100644
index 9428b9356b..0000000000
--- a/testing/test-data/temperature_data.tsv.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/560a89528d777f7bfaadd3f2/download
diff --git a/testing/test-data/tilefancy.png.md5 b/testing/test-data/tilefancy.png.md5
deleted file mode 100644
index 940ecb9e9c..0000000000
--- a/testing/test-data/tilefancy.png.md5
+++ /dev/null
@@ -1 +0,0 @@
-52316da74f71cc8ef4d18a4016fc8f61
\ No newline at end of file
diff --git a/testing/test-data/tilefancy.png.url b/testing/test-data/tilefancy.png.url
deleted file mode 100644
index 232a966863..0000000000
--- a/testing/test-data/tilefancy.png.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/560a89528d777f7bfaadd3f5/download
diff --git a/testing/test-data/tiles.tgz.md5 b/testing/test-data/tiles.tgz.md5
deleted file mode 100644
index a0da2d8b27..0000000000
--- a/testing/test-data/tiles.tgz.md5
+++ /dev/null
@@ -1 +0,0 @@
-910b4894cc906dc3762dc9e314fd4025
diff --git a/testing/test-data/tiles.tgz.url b/testing/test-data/tiles.tgz.url
deleted file mode 100644
index ac4e8d8f97..0000000000
--- a/testing/test-data/tiles.tgz.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/586d1e958d777f05f44a5c72/download
diff --git a/testing/test-data/vtkCube.dat.md5 b/testing/test-data/vtkCube.dat.md5
deleted file mode 100644
index c67e38043c..0000000000
--- a/testing/test-data/vtkCube.dat.md5
+++ /dev/null
@@ -1 +0,0 @@
-270c382b6e42434a52e0af84a30198a6
\ No newline at end of file
diff --git a/testing/test-data/vtkCube.dat.url b/testing/test-data/vtkCube.dat.url
deleted file mode 100644
index dd3e4ed3e6..0000000000
--- a/testing/test-data/vtkCube.dat.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/560a89528d777f7bfaadd3fe/download
diff --git a/testing/test-data/vtkSceneMetadata.json.md5 b/testing/test-data/vtkSceneMetadata.json.md5
deleted file mode 100644
index 15d162428f..0000000000
--- a/testing/test-data/vtkSceneMetadata.json.md5
+++ /dev/null
@@ -1 +0,0 @@
-eb22667d87b0d15e19856975b0a12a57
\ No newline at end of file
diff --git a/testing/test-data/vtkSceneMetadata.json.url b/testing/test-data/vtkSceneMetadata.json.url
deleted file mode 100644
index 3d85aeddd6..0000000000
--- a/testing/test-data/vtkSceneMetadata.json.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/560a89528d777f7bfaadd401/download
diff --git a/testing/test-data/white.jpg.md5 b/testing/test-data/white.jpg.md5
deleted file mode 100644
index 684a164f57..0000000000
--- a/testing/test-data/white.jpg.md5
+++ /dev/null
@@ -1 +0,0 @@
-cbe43849e5db0eae8cb6f429493c8cc1
\ No newline at end of file
diff --git a/testing/test-data/white.jpg.url b/testing/test-data/white.jpg.url
deleted file mode 100644
index 04f9fee18a..0000000000
--- a/testing/test-data/white.jpg.url
+++ /dev/null
@@ -1 +0,0 @@
-https://data.kitware.com/api/v1/file/560a89528d777f7bfaadd404/download
diff --git a/tests/external-data/AdderallCities2015.csv.sha512 b/tests/external-data/AdderallCities2015.csv.sha512
new file mode 100644
index 0000000000..446210cd7b
--- /dev/null
+++ b/tests/external-data/AdderallCities2015.csv.sha512
@@ -0,0 +1 @@
+c3e984482cc6db1193a6dca2a55396a2baad8541a5c8c679f33750b76f766f40a119ec3e63abbabcd095d752c3df8ce21bf24cbe629502121f24ba90b4b0674c
diff --git a/tests/external-data/base-images.tgz.sha512 b/tests/external-data/base-images.tgz.sha512
new file mode 100644
index 0000000000..71ab5a393b
--- /dev/null
+++ b/tests/external-data/base-images.tgz.sha512
@@ -0,0 +1 @@
+d7c9ac0d2324d047ee687fa0c1f857b24b03beae3cb84060d7507c53aca2b8a184abdcb6161ceb2cb238219b8235cfab75f61d9a1a2ff9fcf521b3f96c5f6c84
diff --git a/tests/external-data/blue.jpg.sha512 b/tests/external-data/blue.jpg.sha512
new file mode 100644
index 0000000000..bed718281d
--- /dev/null
+++ b/tests/external-data/blue.jpg.sha512
@@ -0,0 +1 @@
+867b1f3c568289efc7d0dba97d827a2bc4d83a7465cebcb3b5aec7bac6a38cf70d037d1814402bc97ad1f2f6737cfb5ce97db0a4fb53a716e77fd3ba57a7ab3b
diff --git a/tests/external-data/cities.csv.sha512 b/tests/external-data/cities.csv.sha512
new file mode 100644
index 0000000000..d28b11f729
--- /dev/null
+++ b/tests/external-data/cities.csv.sha512
@@ -0,0 +1 @@
+5a665e5feda24f28e5cf4ed0801b67e73bbcf3ea781b2e50d11284214e67b25b68e6a1c48da46e5e4d4d0c54c2ec18f88d292224b4541fb279396cf7b94beac9
diff --git a/tests/external-data/earthquakes-video.webm.sha512 b/tests/external-data/earthquakes-video.webm.sha512
new file mode 100644
index 0000000000..e82e4f4ef4
--- /dev/null
+++ b/tests/external-data/earthquakes-video.webm.sha512
@@ -0,0 +1 @@
+834a9d05f5fb00145e529fa4b217398db0df188c69d751f3869128b6e9c92d3000f85378752c56d9d9b5fa0870437dd9bdfeb5d62f6c87c2c03a7f1a20ee8523
diff --git a/tests/external-data/earthquakes.json.sha512 b/tests/external-data/earthquakes.json.sha512
new file mode 100644
index 0000000000..1445b31595
--- /dev/null
+++ b/tests/external-data/earthquakes.json.sha512
@@ -0,0 +1 @@
+f098b6437411384b552419b4a36264c1bb3fed816ccfe9545145175e0b92a0b7ad5ebdcb9dddd0a12a90499143ffa471c02f6e049be5b973db607ff066892500
diff --git a/tests/external-data/grid.jpg.sha512 b/tests/external-data/grid.jpg.sha512
new file mode 100644
index 0000000000..18d0de61d7
--- /dev/null
+++ b/tests/external-data/grid.jpg.sha512
@@ -0,0 +1 @@
+60d201a14c7d31e7881301e6784e0372ddf27f26e5e4eafba9ba39158dfd050e3683faaa660fcde47e6c994dd3ee64c5a5231474ca75090053ef9207fedd9029
diff --git a/tests/external-data/hurricanes.json.sha512 b/tests/external-data/hurricanes.json.sha512
new file mode 100644
index 0000000000..ad01826d5a
--- /dev/null
+++ b/tests/external-data/hurricanes.json.sha512
@@ -0,0 +1 @@
+012f15036bfc9ac3abb81a2a61e2c7b602ef3d8f7bd3b3f0fb66972ee69034730655f69febb2df5d657f22cd2b1e69170f6568bcbb03d7ebdecdfbafb80cc3b7
diff --git a/tests/external-data/land_polygons.json.sha512 b/tests/external-data/land_polygons.json.sha512
new file mode 100644
index 0000000000..d326bce343
--- /dev/null
+++ b/tests/external-data/land_polygons.json.sha512
@@ -0,0 +1 @@
+30a828392d58678599130e0dca6d7f27e7e07e4e5b5d7f7a37871eb395d53d97b76134c0a07e805fbdfac0f42e6d3ca6e287c9727815a9dc711d541b1c8f68a1
diff --git a/tests/external-data/land_shallow_topo_2048.png.sha512 b/tests/external-data/land_shallow_topo_2048.png.sha512
new file mode 100644
index 0000000000..0ff7e03d11
--- /dev/null
+++ b/tests/external-data/land_shallow_topo_2048.png.sha512
@@ -0,0 +1 @@
+8a8330dba5bacdb511038ad0f6ee5a764a40aa7a8868a445749f653ae5d85d8317684ac706e7a9f049590170df6bc3fefc2912d52124d1b3b17aa43c529ff2a8
diff --git a/tests/external-data/oahu-dense.json.sha512 b/tests/external-data/oahu-dense.json.sha512
new file mode 100644
index 0000000000..7000b03856
--- /dev/null
+++ b/tests/external-data/oahu-dense.json.sha512
@@ -0,0 +1 @@
+692a44ec4a18b16d1530403a9a2bf286ff2ef7d45fa58f555c278f91a0fa708b5626a3f38955e06a11cdc06a1009e859328687c1f32a2169e0c8ef1b518418c1
diff --git a/tests/external-data/oahu-medium.json.sha512 b/tests/external-data/oahu-medium.json.sha512
new file mode 100644
index 0000000000..9b710e2ef7
--- /dev/null
+++ b/tests/external-data/oahu-medium.json.sha512
@@ -0,0 +1 @@
+83375c5c2678b11d8de7f59fd8e2f9b889d3ec20f4a81279d996711bfc0942bd9dcdce149cbca995930459c26b3bf58be60569687085adf361ff805436b75aab
diff --git a/tests/external-data/oahu.json.sha512 b/tests/external-data/oahu.json.sha512
new file mode 100644
index 0000000000..0f433a70fd
--- /dev/null
+++ b/tests/external-data/oahu.json.sha512
@@ -0,0 +1 @@
+e44282c44fa95f0b40c2135ee94ff40a755771f3b4bf9acda0eef0048cd0fb29b3a71352e2eecdca6cfc35fafde96ffb1a9658c9fee2346071808a9123c26cb5
diff --git a/tests/external-data/red.jpg.sha512 b/tests/external-data/red.jpg.sha512
new file mode 100644
index 0000000000..0473d8afa1
--- /dev/null
+++ b/tests/external-data/red.jpg.sha512
@@ -0,0 +1 @@
+70884f5c3d1747633412dcf64d4886d985b49f508b68eb9f3874b2fdcfad38e7623f4a7c7355baa1656503f46e2e091576a19ded9fad7c7c65387c313206d2e6
diff --git a/tests/external-data/roads.json.sha512 b/tests/external-data/roads.json.sha512
new file mode 100644
index 0000000000..2786b0419c
--- /dev/null
+++ b/tests/external-data/roads.json.sha512
@@ -0,0 +1 @@
+ae8d8b99c3fab73798ddcc246ea53b1bc8d598414d00df4ce697373a343fbf7ffed4dbae5f07a997ac7731b5f86140686b8425b99bd5818b8c9ec68e7c4d3315
diff --git a/tests/external-data/sample.json.sha512 b/tests/external-data/sample.json.sha512
new file mode 100644
index 0000000000..698a9e739c
--- /dev/null
+++ b/tests/external-data/sample.json.sha512
@@ -0,0 +1 @@
+5d4b00559f17fac607eafe4a9bb933386ebd572fbe545e6138b8eafbbf510074a8ae398c7df0420a017218af83b18cc322633b77007b63a27dfea7a50db70244
diff --git a/tests/external-data/temperature_data.tsv.sha512 b/tests/external-data/temperature_data.tsv.sha512
new file mode 100644
index 0000000000..a506f1f17f
--- /dev/null
+++ b/tests/external-data/temperature_data.tsv.sha512
@@ -0,0 +1 @@
+bde5cdad7c4518694393de83da938bcf5d485b41116b51f0fce4b462737992d2973f076c577040fa816873b196c6397244aa03736fc7750a0eea0ba5cbcc48e4
diff --git a/tests/external-data/tilefancy.png.sha512 b/tests/external-data/tilefancy.png.sha512
new file mode 100644
index 0000000000..dc074aa7e7
--- /dev/null
+++ b/tests/external-data/tilefancy.png.sha512
@@ -0,0 +1 @@
+455effa59d421cbb73c6def815813063f1c649363de4007fa0de00cc2e0f24cba745c046266e5a83fc43b121a648017d509d7bf03c30fbee1448817e3f849683
diff --git a/tests/external-data/tiles.tgz.sha512 b/tests/external-data/tiles.tgz.sha512
new file mode 100644
index 0000000000..7985124d27
--- /dev/null
+++ b/tests/external-data/tiles.tgz.sha512
@@ -0,0 +1 @@
+30defdfd28f6773c78f31b64b728d42630583b4e2b74c7098d75e6887bf5d8a6bea08a85669ad969058ac2c98dc45d5512684c62227403e7fcf57ea4dc1675f5
diff --git a/tests/external-data/white.jpg.sha512 b/tests/external-data/white.jpg.sha512
new file mode 100644
index 0000000000..cb660aecc0
--- /dev/null
+++ b/tests/external-data/white.jpg.sha512
@@ -0,0 +1 @@
+ea7a9d7ff76775e742572f89e90cce1248ec99c33b2f486e0fa1d19ab461b87dff324533ecb186a3db14e40a3826da97b5d66566360a201228f60140b0e89942