diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 896e8c7..94e2a09 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -14,8 +14,13 @@ jobs:
       matrix:
         julia-version: ['~1.7.0-beta4', 'nightly']
         nthreads: ['1', '2']
+        assertion: ['false']
+        include:
+          - julia-version: '~1.7.0-beta4'
+            nthreads: '2'
+            assertion: 'true'
       fail-fast: false
-    name: Test Julia ${{ matrix.julia-version }} nthreads=${{ matrix.nthreads }}
+    name: Test Julia ${{ matrix.julia-version }} nthreads=${{ matrix.nthreads }} assertion=${{ matrix.assertion }}
     steps:
       - uses: actions/checkout@v2
       - name: Setup julia
@@ -27,6 +32,7 @@ jobs:
       - uses: julia-actions/julia-runtest@v1
         env:
           JULIA_NUM_THREADS: ${{ matrix.nthreads }}
+          CONCURRENTCOLLECTIONS_JL_ASSERTION: ${{ matrix.assertion }}
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v1
         with:
diff --git a/src/utils.jl b/src/utils.jl
index 68206ec..4e6f61b 100644
--- a/src/utils.jl
+++ b/src/utils.jl
@@ -4,6 +4,12 @@
 assertion_enabled() = false
 # assertion_enabled() = true
 
+function enable_assertion()
+    prev = assertion_enabled()
+    @eval assertion_enabled() = true
+    return prev
+end
+
 @noinline unreachable() = error("unreachable reached")
 
 @noinline unexpected(x) = error("unexpected value: $x")
diff --git a/test/runtests.jl b/test/runtests.jl
index 777fab0..f5a2dba 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -1,2 +1,11 @@
+if lowercase(get(ENV, "CONCURRENTCOLLECTIONS_JL_ASSERTION", "false")) == "true"
+    import ConcurrentCollections
+    ConcurrentCollections.Implementations.enable_assertion()
+    @assert ConcurrentCollections.Implementations.assertion_enabled()
+    @info "ConcurrentCollections: Assertion enabled"
+else
+    @info "ConcurrentCollections: Assertion disenabled (default)"
+end
+
 using TestFunctionRunner
 TestFunctionRunner.@run(paths = ["../benchmark/ConcurrentCollectionsBenchmarks"])