diff --git a/features/test/llvm/llvm_16.sh b/features/test/llvm/llvm_17.sh
similarity index 85%
rename from features/test/llvm/llvm_16.sh
rename to features/test/llvm/llvm_17.sh
index f030cfaf..da3494da 100644
--- a/features/test/llvm/llvm_16.sh
+++ b/features/test/llvm/llvm_17.sh
@@ -16,9 +16,9 @@ source dev-container-features-test-lib
 # The 'check' command comes from the dev-container-features-test-lib.
 
 echo "LLVM_VERSION: $LLVM_VERSION";
-check "version" bash -c "echo '$LLVM_VERSION' | grep '16'";
+check "version" bash -c "echo '$LLVM_VERSION' | grep '17'";
 check "clang version" bash -c "clang --version | grep 'clang version $LLVM_VERSION'";
-check "apt repo" grep "llvm-toolchain-$(lsb_release -cs)-16 main" $(find /etc/apt -type f -name '*.list');
+check "apt repo" grep "llvm-toolchain-$(lsb_release -cs)-17 main" $(find /etc/apt -type f -name '*.list');
 
 # Report result
 # If any of the checks above exited with a non-zero exit code, the test will fail.
diff --git a/features/test/llvm/llvm_dev.sh b/features/test/llvm/llvm_dev.sh
new file mode 100644
index 00000000..b44906cf
--- /dev/null
+++ b/features/test/llvm/llvm_dev.sh
@@ -0,0 +1,24 @@
+#! /usr/bin/env bash
+
+# This test can be run with the following command (from the root of this repo)
+# ```
+# npx --package=@devcontainers/cli -c 'devcontainer features test \
+#     --features llvm \
+#     --base-image ubuntu:22.04 .'
+# ```
+
+set -e
+
+# Optional: Import test library bundled with the devcontainer CLI
+source dev-container-features-test-lib
+
+# Feature-specific tests
+# The 'check' command comes from the dev-container-features-test-lib.
+
+echo "LLVM_VERSION: $LLVM_VERSION";
+check "clang version" bash -c "clang --version | grep 'clang version $LLVM_VERSION'";
+check "apt repo" grep "llvm-toolchain-$(lsb_release -cs) main" $(find /etc/apt -type f -name '*.list');
+
+# Report result
+# If any of the checks above exited with a non-zero exit code, the test will fail.
+reportResults