Merge pull request #287 from JuliaDiff/ox/no_scrub_bt

Monkey patch Test.scrub_backtrace

Project.toml

@@ -1,20 +1,22 @@
 name = "ChainRulesTestUtils"
 uuid = "cdddcdb0-9152-4a09-a978-84456f9df70a"
-version = "1.11.0"
+version = "1.12.0"
 
 [deps]
 ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
 Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"
 FiniteDifferences = "26cc04aa-876d-5657-8c51-4c34ba976000"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
+Suppressor = "fd094767-a336-5f1f-9728-57cf17d0bbfb"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
 ChainRulesCore = "1.11.2"
 Compat = "3, 4"
 FiniteDifferences = "0.12.12"
 MetaTesting = "0.1"
+Suppressor = "0.2.6"
 julia = "1"
 
 [extras]

src/ChainRulesTestUtils.jl

@@ -10,14 +10,29 @@ using FiniteDifferences: to_vec
 using LinearAlgebra
 using Random
 using Test
+using Suppressor
 
 export TestIterator
 export test_approx, test_scalar, test_frule, test_rrule, generate_well_conditioned_matrix
 export ⊢, rand_tangent
 export @maybe_inferred
 export test_method_tables
 
-__init__() = init_test_inferred_setting!()
+function __init__()
+    init_test_inferred_setting!()
+
+    # Try to disable backtrace scrubbing so that full failures are shown
+    try
+        isdefined(Test, :scrub_backtrace) || error("Test.scrub_backtrace not defined")
+        @suppress begin  # mute warning about monkey-patching
+            # depending on julia version or one or the other of these will be hit
+            @eval Test scrub_backtrace(bt,) = bt  # make it do nothing
+            @eval Test scrub_backtrace(bt, file_ts, file_t) = bt  # make it do nothing
+        end
+    catch err
+        @warn "Failed to monkey-patch scrub_backtrace. Code is functional but stacktraces may be less useful" exception=(err, catch_backtrace())
+    end
+end
 
 include("global_config.jl")
 
@@ -36,3 +51,4 @@ include("testers.jl")
 include("deprecated.jl")
 include("global_checks.jl")
 end # module
+