move unit tests into 'testing' directories
diff --git a/pagination/testing/single_test.go b/pagination/testing/single_test.go
new file mode 100644
index 0000000..8d95e94
--- /dev/null
+++ b/pagination/testing/single_test.go
@@ -0,0 +1,79 @@
+package testing
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+
+	"github.com/gophercloud/gophercloud/pagination"
+	"github.com/gophercloud/gophercloud/testhelper"
+)
+
+// SinglePage sample and test cases.
+
+type SinglePageResult struct {
+	pagination.SinglePageBase
+}
+
+func (r SinglePageResult) IsEmpty() (bool, error) {
+	is, err := ExtractSingleInts(r)
+	if err != nil {
+		return true, err
+	}
+	return len(is) == 0, nil
+}
+
+func ExtractSingleInts(r pagination.Page) ([]int, error) {
+	var s struct {
+		Ints []int `json:"ints"`
+	}
+	err := (r.(SinglePageResult)).ExtractInto(&s)
+	return s.Ints, err
+}
+
+func setupSinglePaged() pagination.Pager {
+	testhelper.SetupHTTP()
+	client := createClient()
+
+	testhelper.Mux.HandleFunc("/only", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Add("Content-Type", "application/json")
+		fmt.Fprintf(w, `{ "ints": [1, 2, 3] }`)
+	})
+
+	createPage := func(r pagination.PageResult) pagination.Page {
+		return SinglePageResult{pagination.SinglePageBase(r)}
+	}
+
+	return pagination.NewPager(client, testhelper.Server.URL+"/only", createPage)
+}
+
+func TestEnumerateSinglePaged(t *testing.T) {
+	callCount := 0
+	pager := setupSinglePaged()
+	defer testhelper.TeardownHTTP()
+
+	err := pager.EachPage(func(page pagination.Page) (bool, error) {
+		callCount++
+
+		expected := []int{1, 2, 3}
+		actual, err := ExtractSingleInts(page)
+		testhelper.AssertNoErr(t, err)
+		testhelper.CheckDeepEquals(t, expected, actual)
+		return true, nil
+	})
+	testhelper.CheckNoErr(t, err)
+	testhelper.CheckEquals(t, 1, callCount)
+}
+
+func TestAllPagesSingle(t *testing.T) {
+	pager := setupSinglePaged()
+	defer testhelper.TeardownHTTP()
+
+	page, err := pager.AllPages()
+	testhelper.AssertNoErr(t, err)
+
+	expected := []int{1, 2, 3}
+	actual, err := ExtractSingleInts(page)
+	testhelper.AssertNoErr(t, err)
+	testhelper.CheckDeepEquals(t, expected, actual)
+}