diff --git a/.travis.build.sh b/.travis.build.sh
index 7681d5a2da..4538bab1e2 100755
--- a/.travis.build.sh
+++ b/.travis.build.sh
@@ -112,9 +112,6 @@ elif [ "$TEST_SUITE" = "style" ]; then
         fi
     done
 elif [ "$TEST_SUITE" = "unit" ]; then
-    echo "Copying test artifacts from cached mirror..."
-    git clone "$TEST_ARTIFACTS_MIRROR" "open_xdmod/modules/xdmod/tests/xdmod-test-artifacts"
-
     open_xdmod/modules/xdmod/tests/runtests.sh
     if [ $? != 0 ]; then
         build_exit_value=2
diff --git a/.travis.install.sh b/.travis.install.sh
index ce78be583e..a0b203135a 100755
--- a/.travis.install.sh
+++ b/.travis.install.sh
@@ -37,16 +37,3 @@ source ~/.nvm/nvm.sh
 nvm install "$NODE_VERSION"
 nvm use "$NODE_VERSION"
 npm install
-
-# Create or update a mirror of the XDMoD test artifacts.
-#
-# Travis will create any directories that are set up for caching if they do
-# not exist, so check if the directory has contents instead of checking for
-# the existence of the directory.
-if [ -n "$(ls -A "$TEST_ARTIFACTS_MIRROR")" ]; then
-    echo "Updating XDMoD test artifacts mirror..."
-    git -C "$TEST_ARTIFACTS_MIRROR" remote update
-else
-    echo "Creating mirror of XDMoD test artifacts..."
-    git clone --mirror "$TEST_ARTIFACTS_SOURCE" "$TEST_ARTIFACTS_MIRROR"
-fi
diff --git a/.travis.yml b/.travis.yml
index 95d50e24a2..1fbdef5ced 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,8 +9,7 @@ php:
 env:
     global:
         - NODE_VERSION=6
-        - TEST_ARTIFACTS_SOURCE="https://github.com/ubccr/xdmod-test-artifacts.git"
-        - TEST_ARTIFACTS_MIRROR="$HOME/xdmod-test-artifacts.git"
+        - XDMOD_TEST_ARTIFACTS_MIRROR="$HOME/xdmod-test-artifacts.git"
     matrix:
         - TEST_SUITE=syntax
         - TEST_SUITE=style
@@ -27,7 +26,7 @@ cache:
         - $HOME/.npm
         - $HOME/.composer/cache
         - /tmp/pear/cache
-        - $TEST_ARTIFACTS_MIRROR
+        - $XDMOD_TEST_ARTIFACTS_MIRROR
 
 # Delegate the installation step to the custom Travis installation script
 install: ./.travis.install.sh
diff --git a/open_xdmod/modules/xdmod/tests/.gitignore b/open_xdmod/modules/xdmod/tests/artifacts/.gitignore
similarity index 100%
rename from open_xdmod/modules/xdmod/tests/.gitignore
rename to open_xdmod/modules/xdmod/tests/artifacts/.gitignore
diff --git a/open_xdmod/modules/xdmod/tests/artifacts/update-artifacts.sh b/open_xdmod/modules/xdmod/tests/artifacts/update-artifacts.sh
new file mode 100755
index 0000000000..e06d798bba
--- /dev/null
+++ b/open_xdmod/modules/xdmod/tests/artifacts/update-artifacts.sh
@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+
+xdmod_test_artifacts_source="https://github.com/ubccr/xdmod-test-artifacts.git"
+using_xdmod_test_artifacts_mirror="false"; [ -n "$XDMOD_TEST_ARTIFACTS_MIRROR" ] && using_xdmod_test_artifacts_mirror="true"
+
+# Change directory to this script's directory.
+cd "$(dirname $0)" || exit 1
+
+# If using a mirror of the xdmod-test-artifacts repo, create or update it.
+#
+# Travis will create any directories that are set up for caching if they do
+# not exist, so also check if the directory has contents.
+if "$using_xdmod_test_artifacts_mirror"; then
+    if [ -d "$XDMOD_TEST_ARTIFACTS_MIRROR" ] && [ -n "$(ls -A "$XDMOD_TEST_ARTIFACTS_MIRROR")" ]; then
+        echo "Updating xdmod-test-artifacts mirror..."
+        git -C "$XDMOD_TEST_ARTIFACTS_MIRROR" remote update
+    else
+        echo "Creating mirror of xdmod-test-artifacts..."
+        git clone --mirror "$xdmod_test_artifacts_source" "$XDMOD_TEST_ARTIFACTS_MIRROR"
+    fi
+fi
+
+# If the xdmod-test-artifacts repo already exists locally, update it.
+# Otherwise, clone it.
+artifacts_dir="./xdmod-test-artifacts"
+if [ -d "$artifacts_dir" ]; then
+    echo "Updating local xdmod-test-artifacts clone..."
+    git -C "$artifacts_dir" pull
+else
+    echo "Cloning xdmod-test-artifacts into local directory..."
+    if "$using_xdmod_test_artifacts_mirror"; then
+        local_clone_source="$XDMOD_TEST_ARTIFACTS_MIRROR"
+    else
+        local_clone_source="$xdmod_test_artifacts_source"
+    fi
+    git clone "$local_clone_source" "$artifacts_dir"
+fi
diff --git a/open_xdmod/modules/xdmod/tests/lib/ETL/Configuration/ConfigurationTest.php b/open_xdmod/modules/xdmod/tests/lib/ETL/Configuration/ConfigurationTest.php
index 966cb0b6b3..d7d80c68fd 100644
--- a/open_xdmod/modules/xdmod/tests/lib/ETL/Configuration/ConfigurationTest.php
+++ b/open_xdmod/modules/xdmod/tests/lib/ETL/Configuration/ConfigurationTest.php
@@ -13,8 +13,8 @@
 
 class ConfigurationTest extends \PHPUnit_Framework_TestCase
 {
-    const TEST_ARTIFACT_INPUT_PATH = "./xdmod-test-artifacts/xdmod/etlv2/configuration/input";
-    const TEST_ARTIFACT_OUTPUT_PATH = "./xdmod-test-artifacts/xdmod/etlv2/configuration/output";
+    const TEST_ARTIFACT_INPUT_PATH = "./artifacts/xdmod-test-artifacts/xdmod/etlv2/configuration/input";
+    const TEST_ARTIFACT_OUTPUT_PATH = "./artifacts/xdmod-test-artifacts/xdmod/etlv2/configuration/output";
 
     /**
      * Test JSON parse errors
diff --git a/open_xdmod/modules/xdmod/tests/lib/ETL/Configuration/EtlConfigurationTest.php b/open_xdmod/modules/xdmod/tests/lib/ETL/Configuration/EtlConfigurationTest.php
index c5a33cc063..889d0988b2 100644
--- a/open_xdmod/modules/xdmod/tests/lib/ETL/Configuration/EtlConfigurationTest.php
+++ b/open_xdmod/modules/xdmod/tests/lib/ETL/Configuration/EtlConfigurationTest.php
@@ -13,8 +13,8 @@
 
 class EtlConfigurationTest extends \PHPUnit_Framework_TestCase
 {
-    const TEST_ARTIFACT_INPUT_PATH = "./xdmod-test-artifacts/xdmod/etlv2/configuration/input";
-    const TEST_ARTIFACT_OUTPUT_PATH = "./xdmod-test-artifacts/xdmod/etlv2/configuration/output";
+    const TEST_ARTIFACT_INPUT_PATH = "./artifacts/xdmod-test-artifacts/xdmod/etlv2/configuration/input";
+    const TEST_ARTIFACT_OUTPUT_PATH = "./artifacts/xdmod-test-artifacts/xdmod/etlv2/configuration/output";
     const TMPDIR = '/tmp/xdmod-etl-configuration-test';
 
     /**
diff --git a/open_xdmod/modules/xdmod/tests/lib/ETL/Configuration/Rfc6901Test.php b/open_xdmod/modules/xdmod/tests/lib/ETL/Configuration/Rfc6901Test.php
index aa5f311d73..b4b70b0e09 100644
--- a/open_xdmod/modules/xdmod/tests/lib/ETL/Configuration/Rfc6901Test.php
+++ b/open_xdmod/modules/xdmod/tests/lib/ETL/Configuration/Rfc6901Test.php
@@ -14,8 +14,8 @@
 
 class Rfc6901Test extends \PHPUnit_Framework_TestCase
 {
-    const TEST_ARTIFACT_INPUT_PATH = "./xdmod-test-artifacts/xdmod/etlv2/configuration/input";
-    const TEST_ARTIFACT_OUTPUT_PATH = "./xdmod-test-artifacts/xdmod/etlv2/configuration/output";
+    const TEST_ARTIFACT_INPUT_PATH = "./artifacts/xdmod-test-artifacts/xdmod/etlv2/configuration/input";
+    const TEST_ARTIFACT_OUTPUT_PATH = "./artifacts/xdmod-test-artifacts/xdmod/etlv2/configuration/output";
 
     private $config = null;
     private $transformer = null;
diff --git a/open_xdmod/modules/xdmod/tests/lib/ETL/DbModel/DbModelTest.php b/open_xdmod/modules/xdmod/tests/lib/ETL/DbModel/DbModelTest.php
index a71ae93e8f..6486c14799 100644
--- a/open_xdmod/modules/xdmod/tests/lib/ETL/DbModel/DbModelTest.php
+++ b/open_xdmod/modules/xdmod/tests/lib/ETL/DbModel/DbModelTest.php
@@ -21,8 +21,8 @@
 
 class DbModelTest extends \PHPUnit_Framework_TestCase
 {
-    const TEST_ARTIFACT_INPUT_PATH = "./xdmod-test-artifacts/xdmod/etlv2/dbmodel/input";
-    const TEST_ARTIFACT_OUTPUT_PATH = "./xdmod-test-artifacts/xdmod/etlv2/dbmodel/output";
+    const TEST_ARTIFACT_INPUT_PATH = "./artifacts/xdmod-test-artifacts/xdmod/etlv2/dbmodel/input";
+    const TEST_ARTIFACT_OUTPUT_PATH = "./artifacts/xdmod-test-artifacts/xdmod/etlv2/dbmodel/output";
     private $logger = null;
 
     public function __construct()
diff --git a/open_xdmod/modules/xdmod/tests/runtests.sh b/open_xdmod/modules/xdmod/tests/runtests.sh
index e083092e20..fd96b02965 100755
--- a/open_xdmod/modules/xdmod/tests/runtests.sh
+++ b/open_xdmod/modules/xdmod/tests/runtests.sh
@@ -14,12 +14,7 @@ if [ ! -x "$phpunit" ]; then
     exit 127
 fi
 
-artifacts_dir="./xdmod-test-artifacts"
-if [ -d "$artifacts_dir" ]; then
-    git -C "$artifacts_dir" pull
-else
-    git clone "https://github.com/ubccr/xdmod-test-artifacts.git" "$artifacts_dir"
-fi
+./artifacts/update-artifacts.sh
 
 $phpunit ${PHPUNITARGS} .
 exit $?