diff --git a/testing/btest/bifs/bloomfilter.bro b/testing/btest/bifs/bloomfilter.bro
new file mode 100644
index 0000000000..6abbdd69f7
--- /dev/null
+++ b/testing/btest/bifs/bloomfilter.bro
@@ -0,0 +1,38 @@
+# @TEST-EXEC: bro -b %INPUT >output
+# @TEST-EXEC: btest-diff output
+
+event bro_init()
+  {
+  # Basic usage with counts.
+  local bf_cnt = bloomfilter_init(0.1, 1000);
+  bloomfilter_add(bf_cnt, 42);
+  bloomfilter_add(bf_cnt, 84);
+  bloomfilter_add(bf_cnt, 168);
+  print bloomfilter_lookup(bf_cnt, 0);
+  print bloomfilter_lookup(bf_cnt, 42);
+  print bloomfilter_lookup(bf_cnt, 168);
+  print bloomfilter_lookup(bf_cnt, 336);
+  bloomfilter_add(bf_cnt, 0.5); # Type mismatch
+  bloomfilter_add(bf_cnt, "foo"); # Type mismatch
+
+  # Basic usage with strings.
+  local bf_str = bloomfilter_init(0.9, 10);
+  bloomfilter_add(bf_str, "foo");
+  bloomfilter_add(bf_str, "bar");
+  print bloomfilter_lookup(bf_str, "foo");
+  print bloomfilter_lookup(bf_str, "bar");
+  print bloomfilter_lookup(bf_str, "baz");
+  print bloomfilter_lookup(bf_str, "qux");
+  bloomfilter_add(bf_str, 0.5); # Type mismatch
+  bloomfilter_add(bf_str, 100); # Type mismatch
+
+  # Edge cases.
+  local bf_edge0 = bloomfilter_init(0.000000000001, 1);
+  local bf_edge1 = bloomfilter_init(0.00000001, 100000000);
+  local bf_edge2 = bloomfilter_init(0.9999999, 1);
+  local bf_edge3 = bloomfilter_init(0.9999999, 100000000000);
+
+  # Invalid parameters.
+  local bf_bug0 = bloomfilter_init(-0.5, 42);
+  local bf_bug1 = bloomfilter_init(1.1, 42);
+  }