Add support for source_mandate_notification in the library

src/Stripe.Tests.XUnit/Stripe.Tests.XUnit.csproj

@@ -14,6 +14,7 @@
 
   <ItemGroup>
     <EmbeddedResource Include="events\event.json" />
+    <EmbeddedResource Include="source_mandate_notifications\source_mandate_notification.json" />
   </ItemGroup>
 
   <ItemGroup>

src/Stripe.Tests.XUnit/source_mandate_notifications/_fixture.cs

@@ -0,0 +1,19 @@
+using System.IO;
+using System.Reflection;
+using System.Text;
+
+namespace Stripe.Tests.Xunit
+{
+    public class source_mandate_notifications_fixture
+    {
+        internal string StripeJson { get; set; }
+
+        public source_mandate_notifications_fixture()
+        {
+            StripeJson = new StreamReader(
+                typeof(when_constructing_a_source_mandate_notification).GetTypeInfo().Assembly.GetManifestResourceStream("Stripe.Tests.XUnit.source_mandate_notifications.source_mandate_notification.json"),
+                Encoding.UTF8
+            ).ReadToEnd();
+        }
+    }
+}

src/Stripe.Tests.XUnit/source_mandate_notifications/source_mandate_notification.json

@@ -0,0 +1,69 @@
+{
+  "id": "srcmn_1234",
+  "object": "source_mandate_notification",
+  "amount": 1000,
+  "created": 1516981090,
+  "livemode": false,
+  "reason": "debit_initiated",
+  "source": {
+    "id": "src_123",
+    "object": "source",
+    "amount": null,
+    "client_secret": "src_client_secret_123",
+    "created": 1516981089,
+    "currency": "eur",
+    "customer": "cus_123",
+    "flow": "none",
+    "livemode": false,
+    "mandate": {
+      "acceptance": {
+        "date": null,
+        "ip": null,
+        "status": "pending",
+        "user_agent": null
+      },
+      "notification_method": "manual",
+      "reference": "OAAAAAAAAAAAAAAO",
+      "url": "https://hooks.stripe.com/adapter/sepa_debit/file/src_123/src_client_secret_123"
+    },
+    "metadata": {
+    },
+    "owner": {
+      "address": {
+        "city": "City",
+        "country": "DE",
+        "line1": "line1",
+        "line2": null,
+        "postal_code": "11111",
+        "state": null
+      },
+      "email": null,
+      "name": "Jenny Rosen",
+      "phone": null,
+      "verified_address": null,
+      "verified_email": null,
+      "verified_name": null,
+      "verified_phone": null
+    },
+    "statement_descriptor": null,
+    "status": "chargeable",
+    "type": "sepa_debit",
+    "usage": "reusable",
+    "sepa_debit": {
+      "bank_code": "11111111",
+      "country": "DE",
+      "fingerprint": "123",
+      "last4": "3000",
+      "mandate_reference": "OAAAAAAAAAAAAAAO",
+      "mandate_url": "https://hooks.stripe.com/adapter/sepa_debit/file/src_123/src_client_secret_123",
+      "branch_code": null
+    }
+  },
+  "status": "pending",
+  "type": "sepa_debit",
+  "sepa_debit": {
+    "creditor_identifier": "TEST111111111111111",
+    "last4": "3000",
+    "mandate_reference": "OAAAAAAAAAAAAAAO"
+  }
+}

src/Stripe.Tests.XUnit/source_mandate_notifications/when_constructing_a_source_mandate_notification.cs

@@ -0,0 +1,37 @@
+using System;
+using FluentAssertions;
+using Xunit;
+
+namespace Stripe.Tests.Xunit
+{
+    public class when_constructing_a_source_mandate_notification : IClassFixture<source_mandate_notifications_fixture>
+    {
+        private readonly source_mandate_notifications_fixture fixture;
+        public StripeSourceMandateNotification Notification { get; set; }
+
+        public when_constructing_a_source_mandate_notification(source_mandate_notifications_fixture fixture)
+        {
+            this.fixture = fixture;
+        }
+
+        [Fact]
+        public void it_should_load_the_right_data()
+        {
+            Notification = Mapper<StripeSourceMandateNotification>.MapFromJson(fixture.StripeJson);
+
+            Notification.Should().NotBeNull();
+            Notification.Id.Should().Be("srcmn_1234");
+            Notification.Object.Should().Be("source_mandate_notification");
+            Notification.Amount.Should().Be(1000);
+            Notification.LiveMode.Should().Be(false);
+            Notification.Reason.Should().Be("debit_initiated");
+            Notification.Status.Should().Be("pending");
+            Notification.Type.Should().Be("sepa_debit");
+            Notification.Source.Id.Should().Be("src_123");
+            Notification.Source.Type.Should().Be("sepa_debit");
+            Notification.SepaDebit.CreditorIdentifier.Should().Be("TEST111111111111111");
+            Notification.SepaDebit.MandateReference.Should().Be("OAAAAAAAAAAAAAAO");
+            Notification.SepaDebit.Last4.Should().Be("3000");
+        }
+    }
+}

src/Stripe.net/Entities/SourceMandateNotifications/StripeSourceMandateNotification.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
+using Stripe.Infrastructure;
+
+namespace Stripe
+{
+    public class StripeSourceMandateNotification : StripeEntityWithId
+    {
+        [JsonProperty("object")]
+        public string Object => "source_mandate_notification";
+
+        [JsonProperty("amount")]
+        public int? Amount { get; set; }
+
+        [JsonProperty("created")]
+        [JsonConverter(typeof(StripeDateTimeConverter))]
+        public DateTime Created { get; set; }
+
+        [JsonProperty("livemode")]
+        public bool LiveMode { get; set; }
+
+        [JsonProperty("reason")]
+        public string Reason { get; set; }
+
+        [JsonProperty("source")]
+        public StripeSource Source { get; set; }
+
+        [JsonProperty("status")]
+        public string Status { get; set; }
+
+        [JsonProperty("type")]
+        public string Type { get; set; }
+
+        [JsonProperty("sepa_debit")]
+        public StripeSourceMandateNotificationSepaDebit SepaDebit { get; set; }
+    }
+}

src/Stripe.net/Entities/SourceMandateNotifications/StripeSourceMandateNotificationSepaDebit.cs

@@ -0,0 +1,16 @@
+using Newtonsoft.Json;
+
+namespace Stripe
+{
+    public class StripeSourceMandateNotificationSepaDebit : StripeEntity
+    {
+        [JsonProperty("creditor_identifier")]
+        public string CreditorIdentifier { get; set; }
+
+        [JsonProperty("last4")]
+        public string Last4 { get; set; }
+
+        [JsonProperty("mandate_reference")]
+        public string MandateReference { get; set; }
+    }
+}