diff --git a/trees/redblacktree/redblacktree_test.go b/trees/redblacktree/redblacktree_test.go
new file mode 100644
index 0000000..33d5ed1
--- /dev/null
+++ b/trees/redblacktree/redblacktree_test.go
@@ -0,0 +1,32 @@
+package redblacktree
+
+import (
+	"testing"
+)
+
+func TestPut(t *testing.T) {
+
+	tree := NewWithIntComparator()
+
+	tree.Put(3, "c")
+	tree.Put(4, "d")
+	tree.Put(1, "x")
+	tree.Put(2, "b")
+	tree.Put(1, "a")
+
+	// key,expectedValue,expectedFound
+	tests := [][]interface{}{
+		{1, "a", true},
+		{2, "b", true},
+		{3, "c", true},
+		{4, "d", true},
+		{5, nil, false},
+	}
+
+	for _, test := range tests {
+		actualValue, actualFound := tree.Get(test[0])
+		if actualValue != test[1] || actualFound != test[2] {
+			t.Errorf("Got %v expected %v", actualValue, test[1])
+		}
+	}
+}