From 2a862a45389e1309859482b1cd0a080e40702684 Mon Sep 17 00:00:00 2001
From: Andy Zhang <37402126+AnzhiZhang@users.noreply.github.com>
Date: Thu, 8 Aug 2024 11:39:32 +0100
Subject: [PATCH] test(matrices): add chow tests

---
 test/matrices/chow.jl | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 test/matrices/chow.jl

diff --git a/test/matrices/chow.jl b/test/matrices/chow.jl
new file mode 100644
index 0000000..4f2d940
--- /dev/null
+++ b/test/matrices/chow.jl
@@ -0,0 +1,19 @@
+# constructors
+@test allequal([
+    Chow(5),
+    Chow(5, 1, 0),
+    Chow{Int}(5),
+    Chow{Int}(5, 1, 0),
+])
+
+# linear algebra functions
+test_linearalgrbra_functions([Chow.(1:5); Chow.(1:5, 2, 3)])
+
+# eltype
+@test test_matrix_elements(Chow{Int32}(5))
+
+# content
+@test Chow(5) ≈ [1 1 0 0 0; 1 1 1 0 0; 1 1 1 1 0; 1 1 1 1 1; 1 1 1 1 1]
+@test Chow(5, 2, 0) ≈ [2 1 0 0 0; 4 2 1 0 0; 8 4 2 1 0; 16 8 4 2 1; 32 16 8 4 2]
+@test Chow(5, 1, 2) ≈ [3 1 0 0 0; 1 3 1 0 0; 1 1 3 1 0; 1 1 1 3 1; 1 1 1 1 3]
+@test Chow(5, 3, 2) ≈ [5 1 0 0 0; 9 5 1 0 0; 27 9 5 1 0; 81 27 9 5 1; 243 81 27 9 5]