Adding upstream version 2.5.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

search/pool_test.go

@@ -0,0 +1,70 @@
+//  Copyright (c) 2013 Couchbase, Inc.
+//
+// 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.
+
+package search
+
+import "testing"
+
+func TestDocumentMatchPool(t *testing.T) {
+
+	tooManyCalled := false
+
+	// create a pool
+	dmp := NewDocumentMatchPool(10, 0)
+	dmp.TooSmall = func(inner *DocumentMatchPool) *DocumentMatch {
+		tooManyCalled = true
+		return &DocumentMatch{}
+	}
+
+	// get 10 instances without returning
+	returned := make(DocumentMatchCollection, 10)
+
+	for i := 0; i < 10; i++ {
+		returned[i] = dmp.Get()
+		if tooManyCalled {
+			t.Fatal("too many function called before expected")
+		}
+	}
+
+	// get one more and see if too many function is called
+	extra := dmp.Get()
+	if !tooManyCalled {
+		t.Fatal("expected too many function to be called, but wasn't")
+	}
+
+	// return the first 10
+	for i := 0; i < 10; i++ {
+		dmp.Put(returned[i])
+	}
+
+	// check len and cap
+	if len(dmp.avail) != 10 {
+		t.Fatalf("expected 10 available, got %d", len(dmp.avail))
+	}
+	if cap(dmp.avail) != 10 {
+		t.Fatalf("expected avail cap still 10, got %d", cap(dmp.avail))
+	}
+
+	// return the extra
+	dmp.Put(extra)
+
+	// check len and cap grown to 11
+	if len(dmp.avail) != 11 {
+		t.Fatalf("expected 11 available, got %d", len(dmp.avail))
+	}
+	// cap grows, but not by 1 (append behavior)
+	if cap(dmp.avail) <= 10 {
+		t.Fatalf("expected avail cap mpore than 10, got %d", cap(dmp.avail))
+	}
+}