test/runexamples: Reorg. Add non-continue fail test.

Restructure the cmd construction so that the bare and dockerized
versions have more similar arguments.

Add a third argument to `check` that takes additional options to pass to
dctest. Hoist --continue-on-error to be passed using this option and add
an additional faiure test without the option.

test/runexamples

@@ -3,14 +3,13 @@
 PROJECT=${PROJECT:-${USER}}
 DCTEST_IMAGE=${DCTEST_IMAGE}
 
-repo_root=$(dirname $(readlink -f "${0}"))/..
-examples_dir=${repo_root}/examples
+repo_root=$(realpath $(dirname $(realpath "${0}"))/..)
 
 results_dir=$(mktemp -d)
 
-dc() { docker compose -p ${PROJECT} -f ${examples_dir}/docker-compose.yaml "${@}"; }
+dc() { docker compose -p ${PROJECT} -f ${repo_root}/examples/docker-compose.yaml "${@}"; }
 up() { dc up -d; }
-down() { dc down; }
+down() { dc down -t1; }
 
 fail() {
   msg=${1}
@@ -22,21 +21,19 @@ fail() {
 check() {
   passed=${1}; shift
   failed=${1}; shift
+  opts=${1}; shift
   example_files=${@}
 
-  if [ -z "${DCTEST_IMAGE}" ]; then
-    cmd="${repo_root}/dctest --continue-on-error --results-file ${results_dir}/results.json ${PROJECT}"
-    for example in ${example_files}; do
-      cmd="${cmd} ${examples_dir}/${example}"
-    done
-  else
+  cmd="${repo_root}/dctest"
+  if [ "${DCTEST_IMAGE}" ]; then
     cmd="docker run --rm -v /var/run/docker.sock:/var/run/docker.sock"
-    cmd="${cmd} -v ${repo_root}/examples/:/app/examples -v ${results_dir}/:/app/results"
-    cmd="${cmd} ${DCTEST_IMAGE} --continue-on-error --results-file /app/results/results.json ${PROJECT}"
-    for example in ${example_files}; do
-      cmd="${cmd} /app/examples/${example}"
-    done
+    cmd="${cmd} -v ${repo_root}/:${repo_root}:ro -v ${results_dir}/:${results_dir}"
+    cmd="${cmd} ${DCTEST_IMAGE}"
   fi
+  cmd="${cmd} ${opts} --results-file ${results_dir}/results.json ${PROJECT}"
+  for example in ${example_files}; do
+    cmd="${cmd} ${repo_root}/examples/${example}"
+  done
 
   echo "Running: ${cmd}"
   ${cmd}
@@ -59,12 +56,18 @@ check() {
 }
 
 
+[ "${repo_root}" ] || fail "repo_root cannot be empty"
+[ "/" = "${repo_root}" ] && fail "repo_root cannot be '/'"
+
 # TESTS
 
+copt="--continue-on-error"
+
 up
 
-check 5  0 00-intro.yaml
-check 6  4 00-intro.yaml 01-fails.yaml
-check 12 0 02-deps.yaml
+check 5  0 "${copt}        " 00-intro.yaml
+check 6  4 "${copt}        " 00-intro.yaml 01-fails.yaml
+check 5  1 "               " 00-intro.yaml 01-fails.yaml
+check 12 0 "${copt}        " 02-deps.yaml
 
 down