add verbosity tests

Author: jClugstor

test/verbosity.jl

@@ -0,0 +1,42 @@
+@testitem "Nonlinear Verbosity" tags=[:misc] begin
+    using IntervalNonlinearSolve
+    using NonlinearSolve
+    using NonlinearSolve: NonlinearVerbosity
+    using LinearSolve: LinearVerbosity
+    using SciMLVerbosity: SciMLVerbosity, Verbosity
+    using Test 
+    using Logging
+
+    g(u, p) = u^2 - 4
+
+    int_prob = IntervalNonlinearProblem(g, (3.0, 5.0))
+
+    @test_logs (:info,
+        "The interval is not an enclosing interval, opposite signs at the boundaries are required.") solve(
+        int_prob,
+        ITP(), verbose = NonlinearVerbosity(non_enclosing_interval = Verbosity.Info()))
+
+    @test_logs (:error,
+        "The interval is not an enclosing interval, opposite signs at the boundaries are required.") solve(
+        int_prob,
+        ITP(), verbose = NonlinearVerbosity(non_enclosing_interval = Verbosity.Error()))
+
+    # Test that the linear verbosity is passed to the linear solve
+    f(u, p) = [u[1]^2 - 2u[1] + 1, sum(u)]
+    prob = NonlinearProblem(f, [1.0, 1.0])
+
+    @test_logs (:warn,
+        "LU factorization failed, falling back to QR factorization. `A` is potentially rank-deficient.") match_mode=:any solve(
+        prob,
+        verbose = NonlinearVerbosity())
+
+    @test_logs (:info,
+        "LU factorization failed, falling back to QR factorization. `A` is potentially rank-deficient.") match_mode=:any solve(
+        prob,
+        verbose = NonlinearVerbosity(linear_verbosity = LinearVerbosity(default_lu_fallback = Verbosity.Info())))
+
+    # Test that caches get correct verbosities
+    cache = init(prob, verbose = NonlinearVerbosity(threshold_state = Verbosity.Info()))
+
+    @test cache.verbose.numerical.threshold_state == Verbosity.Info()
+end