test: provide tolerances to Sundials initialization tests

Author: AayushSabharwal

test/downstream/initialization.jl

@@ -1,6 +1,7 @@
 using OrdinaryDiffEq, Sundials, SciMLBase, Test
 
 @testset "CheckInit" begin
+    abstol = 1e-10
     @testset "Sundials + ODEProblem" begin
         function rhs(u, p, t)
             return [u[1] * t, u[1]^2 - u[2]^2]
@@ -17,13 +18,13 @@ using OrdinaryDiffEq, Sundials, SciMLBase, Test
             prob = ODEProblem(f, [1.0, 1.0], (0.0, 1.0))
             integ = init(prob, Sundials.ARKODE())
             u0, _, success = SciMLBase.get_initial_values(
-                prob, integ, f, SciMLBase.CheckInit(), Val(SciMLBase.isinplace(f)))
+                prob, integ, f, SciMLBase.CheckInit(), Val(SciMLBase.isinplace(f)); abstol)
             @test success
             @test u0 == prob.u0
 
             integ.u[2] = 2.0
             @test_throws SciMLBase.CheckInitFailureError SciMLBase.get_initial_values(
-                prob, integ, f, SciMLBase.CheckInit(), Val(SciMLBase.isinplace(f)))
+                prob, integ, f, SciMLBase.CheckInit(), Val(SciMLBase.isinplace(f)); abstol)
         end
     end
 
@@ -43,18 +44,18 @@ using OrdinaryDiffEq, Sundials, SciMLBase, Test
             prob = DAEProblem(f, [1.0, 0.0], [1.0, 1.0], (0.0, 1.0), 1.0)
             integ = init(prob, Sundials.IDA())
             u0, _, success = SciMLBase.get_initial_values(
-                prob, integ, f, SciMLBase.CheckInit(), Val(SciMLBase.isinplace(f)))
+                prob, integ, f, SciMLBase.CheckInit(), Val(SciMLBase.isinplace(f)); abstol)
             @test success
             @test u0 == prob.u0
 
             integ.u[2] = 2.0
             @test_throws SciMLBase.CheckInitFailureError SciMLBase.get_initial_values(
-                prob, integ, f, SciMLBase.CheckInit(), Val(SciMLBase.isinplace(f)))
+                prob, integ, f, SciMLBase.CheckInit(), Val(SciMLBase.isinplace(f)); abstol)
 
             integ.u[2] = 1.0
             integ.du[1] = 2.0
             @test_throws SciMLBase.CheckInitFailureError SciMLBase.get_initial_values(
-                prob, integ, f, SciMLBase.CheckInit(), Val(SciMLBase.isinplace(f)))
+                prob, integ, f, SciMLBase.CheckInit(), Val(SciMLBase.isinplace(f)); abstol)
         end
     end
 end