1 files changed, 98 insertions, 0 deletions
diff --git a/tests/typ/compiler/array.typ b/tests/typ/compiler/array.typ
new file mode 100644
index 00000000..cb8433cb
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+++ b/tests/typ/compiler/array.typ
@@ -0,0 +1,98 @@
+// Test arrays.
+// Ref: false
+
+---
+// Ref: true
+
+#set page(width: 150pt)
+
+// Empty.
+{()}
+
+// Not an array, just a parenthesized expression.
+{(1)}
+
+// One item and trailing comma.
+{(-1,)}
+
+// No trailing comma.
+{(true, false)}
+
+// Multiple lines and items and trailing comma.
+{("1"
+     , rgb("002")
+     ,)}
+
+---
+// Test lvalue and rvalue access.
+{
+  let array = (1, 2)
+  array(1) += 5 + array(0)
+  test(array, (1, 8))
+}
+
+---
+// Test rvalue out of bounds.
+// Error: 2-14 array index out of bounds (index: 5, len: 3)
+{(1, 2, 3)(5)}
+
+---
+// Test lvalue out of bounds.
+{
+  let array = (1, 2, 3)
+  // Error: 3-11 array index out of bounds (index: 3, len: 3)
+  array(3) = 5
+}
+
+---
+// Test negative indices.
+{
+  let array = (1, 2, 3, 4)
+  test(array(0), 1)
+  test(array(-1), 4)
+  test(array(-2), 3)
+  test(array(-3), 2)
+  test(array(-4), 1)
+}
+
+---
+// Error: 2-15 array index out of bounds (index: -4, len: 3)
+{(1, 2, 3)(-4)}
+
+---
+// Test non-collection indexing.
+
+{
+  let x = 10pt
+  // Error: 3-4 expected collection, found length
+  x() = 1
+}
+
+---
+// Error: 3 expected closing paren
+{(}
+
+// Error: 2-3 expected expression, found closing paren
+{)}
+
+// Error: 4 expected comma
+// Error: 4-6 unexpected end of block comment
+{(1*/2)}
+
+// Error: 6-8 invalid number suffix
+{(1, 1u 2)}
+
+// Error: 3-4 expected expression, found comma
+{(,1)}
+
+// Missing expression makes named pair incomplete, making this an empty array.
+// Error: 5 expected expression
+{(a:)}
+
+// Named pair after this is already identified as an array.
+// Error: 6-10 expected expression, found named pair
+{(1, b: 2)}
+
+// Keyed pair after this is already identified as an array.
+// Error: 6-14 expected expression, found keyed pair
+{(1, "key": 2)}