actually pass the failure output env var to docker

Author: Nicole Lopez

hooks/command

@@ -30,6 +30,7 @@ docker \
     --volume "$artifacts_dir:/junits" \
     --volume "$PLUGIN_DIR/ruby:/src" \
     --env "BUILDKITE_PLUGIN_JUNIT_ANNOTATE_JOB_UUID_FILE_PATTERN=${BUILDKITE_PLUGIN_JUNIT_ANNOTATE_JOB_UUID_FILE_PATTERN:-}" \
+    --env "BUILDKITE_PLUGIN_JUNIT_ANNOTATE_FAILURE_OUTPUT=${BUILDKITE_PLUGIN_JUNIT_ANNOTATE_FAILURE_OUTPUT:-}" \
     ruby:2.5-alpine /src/bin/annotate /junits \
       > "$annotation_path"
 
@@ -39,4 +40,4 @@ if grep -q "<details>" "$annotation_path"; then
   echo "--- :buildkite: Creating annotation"
   # shellcheck disable=SC2002
   cat "$annotation_path" | buildkite-agent annotate --context junit --style error
-fi
+fi

tests/command.bats

@@ -20,7 +20,7 @@ load "$BATS_PATH/load.bash"
   stub buildkite-agent "artifact download junits/*.xml /plugin/tests/tmp//plugin/junit-artifacts : echo Downloaded artifacts" \
                        "annotate --context junit --style error : echo Annotation added"
 
-  stub docker "--log-level error run --rm --volume /plugin/tests/tmp//plugin/junit-artifacts:/junits --volume /plugin/hooks/../ruby:/src --env BUILDKITE_PLUGIN_JUNIT_ANNOTATE_JOB_UUID_FILE_PATTERN= ruby:2.5-alpine /src/bin/annotate /junits : echo '<details>Failure</details>'"
+  stub docker "--log-level error run --rm --volume /plugin/tests/tmp//plugin/junit-artifacts:/junits --volume /plugin/hooks/../ruby:/src --env BUILDKITE_PLUGIN_JUNIT_ANNOTATE_JOB_UUID_FILE_PATTERN= --env BUILDKITE_PLUGIN_JUNIT_ANNOTATE_FAILURE_OUTPUT= ruby:2.5-alpine /src/bin/annotate /junits : echo '<details>Failure</details>'"
 
   run "$PWD/hooks/command"
 
@@ -45,7 +45,7 @@ load "$BATS_PATH/load.bash"
 
   stub buildkite-agent "artifact download junits/*.xml /plugin/tests/tmp//plugin/junit-artifacts : echo Downloaded artifacts"
 
-  stub docker "--log-level error run --rm --volume /plugin/tests/tmp//plugin/junit-artifacts:/junits --volume /plugin/hooks/../ruby:/src --env BUILDKITE_PLUGIN_JUNIT_ANNOTATE_JOB_UUID_FILE_PATTERN= ruby:2.5-alpine /src/bin/annotate /junits : echo No test errors"
+  stub docker "--log-level error run --rm --volume /plugin/tests/tmp//plugin/junit-artifacts:/junits --volume /plugin/hooks/../ruby:/src --env BUILDKITE_PLUGIN_JUNIT_ANNOTATE_JOB_UUID_FILE_PATTERN= --env BUILDKITE_PLUGIN_JUNIT_ANNOTATE_FAILURE_OUTPUT= ruby:2.5-alpine /src/bin/annotate /junits : echo No test errors"
 
   run "$PWD/hooks/command"
 
@@ -54,4 +54,4 @@ load "$BATS_PATH/load.bash"
   unstub mktemp
   unstub buildkite-agent
   unstub docker
-}
+}