Accept closures for heading styling

1 files changed, 48 insertions, 0 deletions

diff --git a/tests/typ/style/closure.typ b/tests/typ/style/closure.typ
new file mode 100644
index 00000000..2c9edd81
--- /dev/null
+++ b/tests/typ/style/closure.typ
@@ -0,0 +1,48 @@
+// Test styles with closure.
+
+---
+#set heading(
+  size: 10pt,
+  fill: lvl => if even(lvl) { red } else { blue },
+)
+
+= Heading 1
+== Heading 2
+=== Heading 3
+==== Heading 4
+
+---
+// Test in constructor.
+#heading(
+  level: 3,
+  size: 10pt,
+  strong: lvl => {
+    assert(lvl == 3)
+    false
+  }
+)[Level 3]
+
+---
+// Error: 22-26 expected font family or auto or function, found length
+#set heading(family: 10pt)
+= Heading
+
+---
+// Error: 29-38 cannot add integer and string
+#set heading(strong: lvl => lvl + "2")
+= Heading
+
+---
+// Error: 22-34 expected font family or auto, found boolean
+#set heading(family: lvl => false)
+= Heading
+
+---
+// Error: 22-37 missing argument: b
+#set heading(family: (a, b) => a + b)
+= Heading
+
+---
+// Error: 22-30 unexpected argument
+#set heading(family: () => {})
+= Heading