From 6eb76a28325ccc16d8b43fa9412702d285f5e8e2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lars=20G=C3=B6ttgens?= <lars.goettgens@rwth-aachen.de>
Date: Tue, 19 Nov 2024 11:02:03 +0100
Subject: [PATCH] Add some printing tests

---
 test/AlgAss/AlgGrp.jl | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/test/AlgAss/AlgGrp.jl b/test/AlgAss/AlgGrp.jl
index e1946d9c1a..3413ff06e0 100644
--- a/test/AlgAss/AlgGrp.jl
+++ b/test/AlgAss/AlgGrp.jl
@@ -1,7 +1,8 @@
 @testset "Group algebras" begin
   G = small_group(8, 4)
   A = GroupAlgebra(QQ, G)
-
+  @test sprint(show, MIME"text/plain"(), A) isa String
+  @test sprint(show, A) isa String
   @testset "Regular matrix algebra" begin
     B, BtoA = Hecke.regular_matrix_algebra(A)
 
@@ -92,6 +93,8 @@
     QG = Hecke._group_algebra(QQ, G; sparse = true, cached = false)
     @test dim(QG) == factorial(10)
     #@test !is_commutative(QG) # needs https://github.com/Nemocas/AbstractAlgebra.jl/pull/1907
+    @test sprint(show, MIME"text/plain"(), QG) isa String
+    @test sprint(show, QG) isa String
     for i in 1:10
       a = rand(G)
       b = rand(G)
@@ -112,6 +115,8 @@
     QG = Hecke._group_algebra(QQ, G; sparse = true, cached = false)
     @test dim(QG) == 2 * 3 * 5000
     @test is_commutative(QG)
+    @test sprint(show, MIME"text/plain"(), QG) isa String
+    @test sprint(show, QG) isa String
     for i in 1:10
       a = rand(G)
       b = rand(G)
@@ -126,4 +131,12 @@
       @test (aa + bb)^2 == QG(a)^2 + cc + dd + QG(b)^2
     end
   end
+
+  let
+    G = abelian_group([2, 3, 0])
+    QG = Hecke._group_algebra(QQ, G; sparse = true, cached = false)
+    @test is_commutative(QG)
+    @test sprint(show, MIME"text/plain"(), QG) isa String
+    @test sprint(show, QG) isa String
+  end
 end