Add delete phone method (#20)

Adds support for the Delete Phone API endpoint

admin/admin.go

@@ -7,7 +7,7 @@ import (
 	"net/url"
 	"strconv"
 
-	"github.com/duosecurity/duo_api_golang"
+	duoapi "github.com/duosecurity/duo_api_golang"
 )
 
 // Client provides access to Duo's admin API.
@@ -574,6 +574,24 @@ func (c *Client) GetPhone(phoneID string) (*GetPhoneResult, error) {
 	return result, nil
 }
 
+// DeletePhone calls DELETE /admin/v1/phones/:phone_id
+// See https://duo.com/docs/adminapi#delete-phone
+func (c *Client) DeletePhone(phoneID string) (*duoapi.StatResult, error) {
+	path := fmt.Sprintf("/admin/v1/phones/%s", phoneID)
+
+	_, body, err := c.SignedCall(http.MethodDelete, path, nil, duoapi.UseTimeout)
+	if err != nil {
+		return nil, err
+	}
+
+	result := &duoapi.StatResult{}
+	err = json.Unmarshal(body, result)
+	if err != nil {
+		return nil, err
+	}
+	return result, nil
+}
+
 // Token methods
 
 // GetTokensTypeAndSerial sets the optional type and serial parameters for a GetTokens request.

admin/admin_test.go

@@ -1580,6 +1580,30 @@ func TestGetPhone(t *testing.T) {
 	}
 }
 
+const deletePhoneResponse = `{
+	"stat": "OK",
+	"response": ""
+}`
+
+func TestDeletePhone(t *testing.T) {
+	ts := httptest.NewTLSServer(
+		http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			fmt.Fprintln(w, deletePhoneResponse)
+		}),
+	)
+	defer ts.Close()
+
+	duo := buildAdminClient(ts.URL, nil)
+
+	result, err := duo.DeletePhone("DPFZRS9FB0D46QFTM899")
+	if err != nil {
+		t.Errorf("Unexpected error from DeletePhone call %v", err.Error())
+	}
+	if result.Stat != "OK" {
+		t.Errorf("Expected OK, but got %s", result.Stat)
+	}
+}
+
 const getTokensResponse = `{
 	"stat": "OK",
 	"response": [{