Fail cases for https://github.com/cfengine/core/pull/2162

gistfile1.diff

diff --git a/tests/acceptance/01_vars/02_functions/readdata.cf b/tests/acceptance/01_vars/02_functions/readdata.cf
index ad886ee..406aecd 100644
--- a/tests/acceptance/01_vars/02_functions/readdata.cf
+++ b/tests/acceptance/01_vars/02_functions/readdata.cf
@@ -24,6 +24,14 @@ bundle agent test
       "extension_yaml" data => readdata("$(this.promise_filename).yaml", "auto");
       "extension_json" data => readdata("$(this.promise_filename).json", "auto");
 
+      "failed_explicit_csv" data => readdata("$(this.promise_filename)", "CSV");
+      "failed_explicit_yaml" data => readdata("$(this.promise_filename)", "YAML");
+      "failed_explicit_json" data => readdata("$(this.promise_filename)", "JSON");
+
+      "failed_guess_csv" data => readdata("$(this.promise_filename)", "auto");
+      "failed_guess_yaml" data => readdata("$(this.promise_filename)", "auto");
+      "failed_guess_json" data => readdata("$(this.promise_filename)", "auto");
+
       "guess_csv" data => readdata("$(this.promise_filename).csv.guess", "auto");   # should be empty (JSON is attempted)
       "guess_yaml" data => readdata("$(this.promise_filename).yaml.guess", "auto"); # should be empty (JSON is attempted)
       "guess_json" data => readdata("$(this.promise_filename).json.guess", "auto");