1 files changed, 42 insertions, 0 deletions
diff --git a/apps/couch/test/etap/065-kt-stemming.t b/apps/couch/test/etap/065-kt-stemming.t
new file mode 100755
index 00000000..6e781c1d
--- /dev/null
+++ b/apps/couch/test/etap/065-kt-stemming.t
@@ -0,0 +1,42 @@
+#!/usr/bin/env escript
+%% -*- erlang -*-
+
+% Licensed under the Apache License, Version 2.0 (the "License"); you may not
+% use this file except in compliance with the License. You may obtain a copy of
+% the License at
+%
+%   http://www.apache.org/licenses/LICENSE-2.0
+%
+% Unless required by applicable law or agreed to in writing, software
+% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+% License for the specific language governing permissions and limitations under
+% the License.
+
+main(_) ->
+    test_util:init_code_path(),
+    etap:plan(3),
+    case (catch test()) of
+        ok ->
+            etap:end_tests();
+        Other ->
+            etap:diag(io_lib:format("Test died abnormally: ~p", [Other])),
+            etap:bail(Other)
+    end,
+    ok.
+
+test() ->
+    TwoChild = [{0, {"1","foo", [{"1a", "bar", [{"1aa", "bar", []}]}]}}],
+    Stemmed1 = [{1, {"1a", "bar", [{"1aa", "bar", []}]}}],
+    Stemmed2 = [{2, {"1aa", "bar", []}}],
+
+    etap:is(TwoChild, couch_key_tree:stem(TwoChild, 3),
+        "Stemming more levels than what exists does nothing."),
+
+    etap:is(Stemmed1, couch_key_tree:stem(TwoChild, 2),
+        "Stemming with a depth of two returns the deepest two nodes."),
+
+    etap:is(Stemmed2, couch_key_tree:stem(TwoChild, 1),
+        "Stemming to a depth of one returns the deepest node."),
+
+    ok.