While loops 🔁

1 files changed, 46 insertions, 0 deletions

diff --git a/tests/typ/control/while.typ b/tests/typ/control/while.typ
new file mode 100644
index 00000000..7ad70372
--- /dev/null
+++ b/tests/typ/control/while.typ
@@ -0,0 +1,46 @@
+// Test while expressions.
+
+---
+// Should output `2 4 6 8 10`.
+#let i = 0
+#while i < 10 [
+    { i += 2 }
+    #i
+]
+
+// Should output `Hi`.
+#let iter = true
+#while iter {
+    iter = false
+    "Hi."
+}
+
+#while false {
+    dont-care
+}
+
+---
+// Value of while loops.
+// Ref: false
+#test(type(while false {}), "template")
+#test(type(while false []), "template")
+
+---
+// Error: 14-19 unknown variable
+#let error = error
+
+// Condition must be boolean.
+// Error: 8-14 expected boolean, found template
+#while [nope] [nope]
+
+// Make sure that we don't complain twice.
+// Error: 8-15 unknown variable
+#while nothing {}
+
+// A single error stops iteration.
+#let i = 0
+#test(error, while i < 10 {
+    i += 1
+    if i < 5 [nope] else { error }
+})
+#test(i, 5)