From 20106bdbcf1761f666a393e9280b4f9ffa4a2b72 Mon Sep 17 00:00:00 2001
From: lkdvos <lukas.devos@ugent.be>
Date: Thu, 13 Jun 2024 09:14:34 +0200
Subject: [PATCH] Revert "simpler tests"

This reverts commit 87acfee4e7efccb933b2f723bfff97658aa74ea8.
---
 test/algorithms.jl | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/test/algorithms.jl b/test/algorithms.jl
index cf36c024..d3d3adfa 100644
--- a/test/algorithms.jl
+++ b/test/algorithms.jl
@@ -158,7 +158,7 @@ end
 @testset "LazySum FiniteMPS groundstate" verbose = true begin
     tol = 1e-8
     D = 15
-    atol = 1e-6
+    atol = 1e-2
 
     # test using XXZ model, Δ > 1 is gapped
     local_operators = [-S_xx(), -S_yy(), -(1 + abs(rand())) * S_zz()]
@@ -179,7 +179,7 @@ end
         ψ, = find_groundstate(ψ₀, H, alg)
         ψ_lazy, envs, δ = find_groundstate(ψ₀, H_lazy, alg)
 
-        @test sum(expectation_value(ψ, H)) ≈ sum(expectation_value(ψ_lazy, H_lazy)) atol = atol
+        @test abs(dot(ψ, ψ_lazy)) ≈ 1 atol = atol
     end
 
     @testset "DMRG2" begin
@@ -195,7 +195,7 @@ end
         ψ, = find_groundstate(ψ₀, H, alg)
         ψ_lazy, envs, δ = find_groundstate(ψ₀, H_lazy, alg)
 
-        @test sum(expectation_value(ψ, H)) ≈ sum(expectation_value(ψ_lazy, H_lazy)) atol = atol
+        @test abs(dot(ψ, ψ_lazy)) ≈ 1 atol = atol
     end
 
     @testset "GradientGrassmann" begin
@@ -210,14 +210,14 @@ end
         ψ, = find_groundstate(ψ₀, H, alg)
         ψ_lazy, envs, δ = find_groundstate(ψ₀, H_lazy, alg)
 
-        @test sum(expectation_value(ψ, H)) ≈ sum(expectation_value(ψ_lazy, H_lazy)) atol = atol
+        @test abs(dot(ψ, ψ_lazy)) ≈ 1 atol = atol
     end
 end
 
 @testset "LazySum InfiniteMPS groundstate" verbose = true begin
     tol = 1e-8
     D = 15
-    atol = 1e-6
+    atol = 1e-2
 
     # test using XXZ model, Δ > 1 is gapped
     local_operators = [S_xx(), S_yy(), (1.234) * S_zz()]
@@ -237,7 +237,7 @@ end
         ψ, = find_groundstate(ψ₀, H, alg)
         ψ_lazy, envs, δ = find_groundstate(ψ₀, H_lazy, alg)
 
-        @test sum(expectation_value(ψ, H)) ≈ sum(expectation_value(ψ_lazy, H_lazy)) atol = atol
+        @test abs(dot(ψ, ψ_lazy)) ≈ 1 atol = atol
     end
 
     @testset "IDMRG1" begin
@@ -251,7 +251,7 @@ end
         ψ, = find_groundstate(ψ₀, H, alg)
         ψ_lazy, envs, δ = find_groundstate(ψ₀, H_lazy, alg)
 
-        @test sum(expectation_value(ψ, H)) ≈ sum(expectation_value(ψ_lazy, H_lazy)) atol = atol
+        @test abs(dot(ψ, ψ_lazy)) ≈ 1 atol = atol
     end
 
     @testset "IDMRG2" begin
@@ -269,7 +269,7 @@ end
         ψ_lazy, envs, δ = find_groundstate(ψ₀, H_lazy′, alg)
         ψ, = find_groundstate(ψ₀, H′, alg)
 
-        @test sum(expectation_value(ψ, H′)) ≈ sum(expectation_value(ψ_lazy, H_lazy′)) atol = atol
+        @test abs(dot(ψ, ψ_lazy)) ≈ 1 atol = atol
     end
 
     @testset "GradientGrassmann" begin
@@ -284,7 +284,7 @@ end
         ψ_lazy, envs, δ = find_groundstate(ψ₀, H_lazy, alg)
         ψ, = find_groundstate(ψ₀, H, alg)
 
-        @test sum(expectation_value(ψ, H)) ≈ sum(expectation_value(ψ_lazy, H_lazy)) atol = atol
+        @test abs(dot(ψ, ψ_lazy)) ≈ 1 atol = atol
     end
 end