diff --git a/projects/opennavsurf-bag/Dockerfile b/projects/opennavsurf-bag/Dockerfile
index 149eddd6992c..da9f89caf616 100644
--- a/projects/opennavsurf-bag/Dockerfile
+++ b/projects/opennavsurf-bag/Dockerfile
@@ -60,8 +60,13 @@ RUN ./autogen.sh \
     make -j$(nproc) && \
     make install
 
+WORKDIR /tmp
+RUN git clone https://github.com/catchorg/Catch2.git && cd Catch2 && git checkout v3.12.0
+RUN cd Catch2 && cmake -B build -S . && cmake --build build --target install
+
 WORKDIR $SRC
 
 RUN git clone --depth 1 https://github.com/OpenNavigationSurface/BAG bag
+RUN pip install -r bag/requirements.txt
 
-RUN cp $SRC/bag/fuzzers/build.sh $SRC/
+COPY run_tests.sh $SRC/
diff --git a/projects/opennavsurf-bag/run_tests.sh b/projects/opennavsurf-bag/run_tests.sh
new file mode 100644
index 000000000000..0d898595836b
--- /dev/null
+++ b/projects/opennavsurf-bag/run_tests.sh
@@ -0,0 +1,33 @@
+#!/bin/bash -eu
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+cd bag
+# Disable ASan since tests don't work with it on.
+unset CFLAGS
+export CXXFLAGS='-stdlib=libc++ -ldl'
+
+cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -B test_build -S . \
+  -DCMAKE_INSTALL_PREFIX:PATH=/opt \
+  -DCMAKE_PREFIX_PATH='/opt;/opt/local;/opt/local/HDF_Group/HDF5/1.14.3/' \
+  -DBAG_BUILD_SHARED_LIBS:BOOL=OFF \
+  -DBAG_BUILD_TESTS:BOOL=ON -DBAG_CODE_COVERAGE:BOOL=OFF \
+  -DBAG_BUILD_PYTHON:BOOL=OFF -DBAG_BUILD_EXAMPLES:BOOL=OFF
+
+cmake --build test_build --config Release --target install
+
+# There are some exclusions due to failing tests.
+BAG_SAMPLES_PATH=./examples/sample-data ./test_build/tests/bag_tests '~test VR BAG reading GDAL' '~test simple layer read' '~test interleaved legacy layer read' '~test VR BAG reading NBS'