From 64238d16d65da4dfbb59e884f966165d28d16d71 Mon Sep 17 00:00:00 2001
From: Daniel Karrasch <Daniel.Karrasch@posteo.de>
Date: Sat, 19 Feb 2022 17:25:30 +0100
Subject: [PATCH] triu and tril tests

---
 test/runtests.jl | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/test/runtests.jl b/test/runtests.jl
index 329d2b0..5f40f41 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -349,6 +349,15 @@ end
     for T in (TU, TL)
         @test inv(T)::TriangularToeplitz ≈ inv(Matrix(T))
     end
+    T = Toeplitz(A)
+    TU = triu(T)
+    @test TU isa TriangularToeplitz
+    @test istriu(TU)
+    @test TU == Toeplitz(triu(A))
+    TL = tril(T)
+    @test TL isa TriangularToeplitz
+    @test istril(TL)
+    @test TL == Toeplitz(tril(A))
     for n in (65, 128)
         A = randn(n, n)
         TU = TriangularToeplitz(A, :U)