From 255227789a55e73b7d150228f7c66d72038c3b0d Mon Sep 17 00:00:00 2001
From: youdongguo <1010705897@qq.com>
Date: Tue, 15 Aug 2023 14:01:35 -0500
Subject: [PATCH] equal comparison between NMF.Results and hash of NMF.Results

---
 src/common.jl | 5 +++++
 test/utils.jl | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/src/common.jl b/src/common.jl
index 819fc1c..bbabbf6 100644
--- a/src/common.jl
+++ b/src/common.jl
@@ -33,6 +33,11 @@ struct Result{T}
     end
 end
 
+
+Base.:(==)(A::Result, B::Result) = A.W == B.W && A.H == B.H && A.niters == B.niters && A.converged == B.converged && A.objvalue == B.objvalue
+Base.hash(s::Result, h::UInt) = hash(s.objvalue, hash(s.converged, hash(s.niters, hash(s.H, hash(s.W, h + (0x09c9f08cfcba6de3 % UInt))))))
+
+
 # common algorithmic skeleton for iterative updating methods
 
 abstract type NMFUpdater{T} end
diff --git a/test/utils.jl b/test/utils.jl
index f69aabb..632b839 100644
--- a/test/utils.jl
+++ b/test/utils.jl
@@ -61,4 +61,10 @@
     Xr = zeros(4, 5)
     NMF.pdrsolve!(Y, B, Xr)
     @test Xr ≈ X
+
+    X, Wg, Hg = laurberg6x3(0.3)  
+    Xnmf = NMF.solve!(NMF.CoordinateDescent{Float64}(α=0.0, maxiter=1000, tol=1e-9), X, Wg, Hg)
+    Xnmf1 = deepcopy(Xnmf)
+    @test Xnmf == Xnmf1
+    @test hash(Xnmf) == hash(Xnmf1)
 end