diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b5ad24e7bd..b553ffbe96 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -189,13 +189,9 @@ jobs:
         if: matrix.skip_testing != true
         working-directory: tests
         run: |
-          echo "Launching httpbin"
-          # Current decorator (>= 5) is incompatible with Python 2 which we
-          # still use under in some builds, so explicitly use a version which
-          # is known to work.
-          pip install decorator==4.4.2 httpbin
-          python -m httpbin.core 2>&1 >httpbin.log &
-          export WX_TEST_WEBREQUEST_URL=http://localhost:5000
+          . ../build/tools/httpbin.sh
+
+          httpbin_launch
 
           export ASAN_OPTIONS=fast_unwind_on_malloc=0
 
@@ -210,11 +206,9 @@ jobs:
                 ./test || rc=$?
             fi
           fi
+
           if [ -n "$rc" ]; then
-            echo '*** Tests failed, contents of httpbin.log follows: ***'
-            echo '-----------------------------------------------------------'
-            cat httpbin.log
-            echo '-----------------------------------------------------------'
+            httpbin_show_log
             exit $rc
           fi
 
diff --git a/build/tools/httpbin.sh b/build/tools/httpbin.sh
new file mode 100644
index 0000000000..f24e37ef39
--- /dev/null
+++ b/build/tools/httpbin.sh
@@ -0,0 +1,44 @@
+# This script is sourced by CI scripts to launch httpbin.
+#
+# Do not run it directly.
+
+httpbin_launch() {
+    echo 'Launching httpbin...'
+
+    case "$(uname -s)" in
+        Linux)
+            dist_codename=$(lsb_release --codename --short)
+            ;;
+    esac
+
+    # We need to disable SSL certificate checking under Trusty because Python
+    # version there is too old to support SNI.
+    case "$dist_codename" in
+        trusty)
+            # Here "decorator==4.4.2" doesn't work neither for some reason ("no
+            # matching distribution found"), so use an explicit URL.
+            pip_decorator_arg='https://files.pythonhosted.org/packages/ed/1b/72a1821152d07cf1d8b6fce298aeb06a7eb90f4d6d41acec9861e7cc6df0/decorator-4.4.2-py2.py3-none-any.whl'
+            pip_options='--trusted-host files.pythonhosted.org'
+            ;;
+
+        *)
+            # Current decorator (>= 5) is incompatible with Python 2 which we
+            # still use under in some builds, so explicitly use a version which
+            # is known to work.
+            pip_decorator_arg='decorator==4.4.2'
+            ;;
+    esac
+
+    pip install $pip_decorator_arg httpbin --user $pip_options
+    python -m httpbin.core 2>&1 >httpbin.log &
+    WX_TEST_WEBREQUEST_URL="http://localhost:5000"
+
+    export WX_TEST_WEBREQUEST_URL
+}
+
+httpbin_show_log() {
+    echo '*** Tests failed, contents of httpbin.log follows: ***'
+    echo '-----------------------------------------------------------'
+    cat httpbin.log
+    echo '-----------------------------------------------------------'
+}
diff --git a/build/tools/travis-ci.sh b/build/tools/travis-ci.sh
index 4e46db6ca1..7c3b085944 100755
--- a/build/tools/travis-ci.sh
+++ b/build/tools/travis-ci.sh
@@ -4,6 +4,8 @@
 
 set -e
 
+. ./build/tools/httpbin.sh
+
 wxPROC_COUNT=`getconf _NPROCESSORS_ONLN`
 ((wxPROC_COUNT++))
 wxBUILD_ARGS="-j$wxPROC_COUNT"
@@ -12,42 +14,6 @@ wxBUILD_ARGS="-j$wxPROC_COUNT"
 # messages from WebKit tests that we're not interested in.
 export NO_AT_BRIDGE=1
 
-launch_httpbin() {
-    echo 'travis_fold:start:httpbin'
-    echo 'Running httpbin...'
-
-    case "$(uname -s)" in
-        Linux)
-            dist_codename=$(lsb_release --codename --short)
-            ;;
-    esac
-
-    # We need to disable SSL certificate checking under Trusty because Python
-    # version there is too old to support SNI.
-    case "$dist_codename" in
-        trusty)
-            # Here "decorator==4.4.2" doesn't work neither for some reason ("no
-            # matching distribution found"), so use an explicit URL.
-            pip_decorator_arg='https://files.pythonhosted.org/packages/ed/1b/72a1821152d07cf1d8b6fce298aeb06a7eb90f4d6d41acec9861e7cc6df0/decorator-4.4.2-py2.py3-none-any.whl'
-            pip_options='--trusted-host files.pythonhosted.org'
-            ;;
-
-        *)
-            # Current decorator (>= 5) is incompatible with Python 2 which we
-            # still use under in some builds, so explicitly use a version which
-            # is known to work.
-            pip_decorator_arg='decorator==4.4.2'
-            ;;
-    esac
-
-    pip install $pip_decorator_arg httpbin --user $pip_options
-    python -m httpbin.core &
-    WX_TEST_WEBREQUEST_URL="http://localhost:5000"
-
-    export WX_TEST_WEBREQUEST_URL
-    echo 'travis_fold:end:httpbin'
-}
-
 case $wxTOOLSET in
     cmake)
         if [ -z $wxCMAKE_TESTS ]; then wxCMAKE_TESTS=CONSOLE_ONLY; fi
@@ -78,12 +44,18 @@ case $wxTOOLSET in
         echo 'travis_fold:end:install'
 
         if [ "$wxCMAKE_TESTS" != "OFF" ]; then
-            launch_httpbin
+            echo 'travis_fold:start:httpbin'
+            httpbin_launch
+            echo 'travis_fold:end:httpbin'
 
             echo 'travis_fold:start:testing'
             echo 'Testing...'
-            ctest -V -C Debug -E "test_drawing" --output-on-failure --interactive-debug-mode 0 .
+            ctest -V -C Debug -E "test_drawing" --output-on-failure --interactive-debug-mode 0 . || rc=$?
             echo 'travis_fold:end:testing'
+            if [ -n "$rc" ]; then
+                httpbin_show_log
+                exit $rc
+            fi
         fi
 
         echo 'travis_fold:start:testinstall'
@@ -162,14 +134,20 @@ case $wxTOOLSET in
             exit 0
         fi
 
-        launch_httpbin
+        echo 'travis_fold:start:httpbin'
+        httpbin_launch
+        echo 'travis_fold:end:httpbin'
 
         echo 'travis_fold:start:testing'
         echo 'Testing...'
         pushd tests
-        ./test
+        ./test || rc=$?
         popd
         echo 'travis_fold:end:testing'
+        if [ -n "$rc" ]; then
+            httpbin_show_log
+            exit $rc
+        fi
 
         if [ "$wxSKIP_GUI" = 1 ]; then
             echo 'Skipping the rest of tests for non-GUI build.'