tests: add functional tests for builtin functions

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 49 insertions, 0 deletions

diff --git a/tests/custom/03_stdlib/02_die b/tests/custom/03_stdlib/02_die
new file mode 100644
index 0000000..344069a
--- /dev/null
+++ b/tests/custom/03_stdlib/02_die
@@ -0,0 +1,49 @@
+The `die()` function triggers a user defined runtime exception when invoked,
+using the given value as exception message.
+
+The given message value is converted to a string internally if it is not a
+string already. If no message argument is given or if the message argument
+is `null`, the default message is `Died`.
+
+The function does not return.
+
+-- Testcase --
+{%
+	print("Before invoking die()\n");
+
+	die("An exception!");
+
+	print("After invoking die()\n");
+%}
+-- End --
+
+-- Expect stdout --
+Before invoking die()
+-- End --
+
+-- Expect stderr --
+An exception!
+In line 4, byte 21:
+
+ `    die("An exception!");`
+  Near here -------------^
+
+
+-- End --
+
+
+-- Testcase --
+{%
+	die();
+%}
+-- End --
+
+-- Expect stderr --
+Died
+In line 2, byte 6:
+
+ `    die();`
+          ^-- Near here
+
+
+-- End --