move unit tests into 'testing' directories
diff --git a/pagination/testing/linked_test.go b/pagination/testing/linked_test.go
new file mode 100644
index 0000000..3533e44
--- /dev/null
+++ b/pagination/testing/linked_test.go
@@ -0,0 +1,112 @@
+package testing
+
+import (
+	"fmt"
+	"net/http"
+	"reflect"
+	"testing"
+
+	"github.com/gophercloud/gophercloud/pagination"
+	"github.com/gophercloud/gophercloud/testhelper"
+)
+
+// LinkedPager sample and test cases.
+
+type LinkedPageResult struct {
+	pagination.LinkedPageBase
+}
+
+func (r LinkedPageResult) IsEmpty() (bool, error) {
+	is, err := ExtractLinkedInts(r)
+	return len(is) == 0, err
+}
+
+func ExtractLinkedInts(r pagination.Page) ([]int, error) {
+	var s struct {
+		Ints []int `json:"ints"`
+	}
+	err := (r.(LinkedPageResult)).ExtractInto(&s)
+	return s.Ints, err
+}
+
+func createLinked(t *testing.T) pagination.Pager {
+	testhelper.SetupHTTP()
+
+	testhelper.Mux.HandleFunc("/page1", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Add("Content-Type", "application/json")
+		fmt.Fprintf(w, `{ "ints": [1, 2, 3], "links": { "next": "%s/page2" } }`, testhelper.Server.URL)
+	})
+
+	testhelper.Mux.HandleFunc("/page2", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Add("Content-Type", "application/json")
+		fmt.Fprintf(w, `{ "ints": [4, 5, 6], "links": { "next": "%s/page3" } }`, testhelper.Server.URL)
+	})
+
+	testhelper.Mux.HandleFunc("/page3", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Add("Content-Type", "application/json")
+		fmt.Fprintf(w, `{ "ints": [7, 8, 9], "links": { "next": null } }`)
+	})
+
+	client := createClient()
+
+	createPage := func(r pagination.PageResult) pagination.Page {
+		return LinkedPageResult{pagination.LinkedPageBase{PageResult: r}}
+	}
+
+	return pagination.NewPager(client, testhelper.Server.URL+"/page1", createPage)
+}
+
+func TestEnumerateLinked(t *testing.T) {
+	pager := createLinked(t)
+	defer testhelper.TeardownHTTP()
+
+	callCount := 0
+	err := pager.EachPage(func(page pagination.Page) (bool, error) {
+		actual, err := ExtractLinkedInts(page)
+		if err != nil {
+			return false, err
+		}
+
+		t.Logf("Handler invoked with %v", actual)
+
+		var expected []int
+		switch callCount {
+		case 0:
+			expected = []int{1, 2, 3}
+		case 1:
+			expected = []int{4, 5, 6}
+		case 2:
+			expected = []int{7, 8, 9}
+		default:
+			t.Fatalf("Unexpected call count: %d", callCount)
+			return false, nil
+		}
+
+		if !reflect.DeepEqual(expected, actual) {
+			t.Errorf("Call %d: Expected %#v, but was %#v", callCount, expected, actual)
+		}
+
+		callCount++
+		return true, nil
+	})
+	if err != nil {
+		t.Errorf("Unexpected error for page iteration: %v", err)
+	}
+
+	if callCount != 3 {
+		t.Errorf("Expected 3 calls, but was %d", callCount)
+	}
+}
+
+func TestAllPagesLinked(t *testing.T) {
+	pager := createLinked(t)
+	defer testhelper.TeardownHTTP()
+
+	page, err := pager.AllPages()
+	testhelper.AssertNoErr(t, err)
+
+	expected := []int{1, 2, 3, 4, 5, 6, 7, 8, 9}
+	actual, err := ExtractLinkedInts(page)
+	testhelper.AssertNoErr(t, err)
+	testhelper.CheckDeepEquals(t, expected, actual)
+}