diff --git a/Package.swift b/Package.swift
index e6421c2..c724a58 100644
--- a/Package.swift
+++ b/Package.swift
@@ -44,6 +44,7 @@ let package = Package(
         ),
         .testTarget(name: "WebPushTests", dependencies: [
             .product(name: "AsyncHTTPClient", package: "async-http-client"),
+            .product(name: "Crypto", package: "swift-crypto"),
             .product(name: "Logging", package: "swift-log"),
             .product(name: "NIOCore", package: "swift-nio"),
             .product(name: "ServiceLifecycle", package: "swift-service-lifecycle"),
diff --git a/README.md b/README.md
index fbf476a..222be0f 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ Please check the [releases](https://github.com/mochidev/swift-webpush/releases)
 dependencies: [
     .package(
         url: "https://github.com/mochidev/swift-webPush.git", 
-        .upToNextMinor(from: "0.1.4")
+        .upToNextMinor(from: "0.2.0")
     ),
 ],
 ...
@@ -37,13 +37,15 @@ targets: [
     .target(
         name: "MyPackage",
         dependencies: [
-            "WebPush",
+            .product(name: "WebPush", package: "swift-webpush"),
+            ...
         ]
     ),
     .testTarget(
         name: "MyPackageTests",
         dependencies: [
-            "WebPushTesting",
+            .product(name: "WebPushTesting", package: "swift-webpush"),
+            ...
         ]
     ),
 ]
diff --git a/Tests/WebPushTests/VAPIDConfiguration+Testing.swift b/Tests/WebPushTests/VAPIDConfiguration+Testing.swift
index be19adf..3426ea4 100644
--- a/Tests/WebPushTests/VAPIDConfiguration+Testing.swift
+++ b/Tests/WebPushTests/VAPIDConfiguration+Testing.swift
@@ -10,6 +10,7 @@ import Foundation
 import WebPush
 
 extension VAPID.Configuration {
+    /// Make a new configuration useful for testing against.
     static func makeTesting() -> VAPID.Configuration {
         VAPID.Configuration(
             key: VAPID.Key(),
diff --git a/Tests/WebPushTests/VAPIDConfigurationTests.swift b/Tests/WebPushTests/VAPIDConfigurationTests.swift
index 0244c2d..32342b8 100644
--- a/Tests/WebPushTests/VAPIDConfigurationTests.swift
+++ b/Tests/WebPushTests/VAPIDConfigurationTests.swift
@@ -260,6 +260,54 @@ struct VAPIDConfigurationTests {
                 """
             )
         }
+        
+        @Test func decodesIncompleteConfiguration() throws {
+            #expect(
+                try JSONDecoder().decode(VAPID.Configuration.self, from: Data(
+                    """
+                    {
+                      "contactInformation" : "mailto:test@example.com",
+                      "expirationDuration" : 79200,
+                      "primaryKey" : "FniTgSrf0l+BdfeC6LiblKXBbY4LQm0S+4STNCoJI+0=",
+                      "validityDuration" : 72000
+                    }
+                    """.utf8
+                )) ==
+                VAPID.Configuration(
+                    key: key1,
+                    contactInformation: .email("test@example.com")
+                )
+            )
+        }
+        
+        @Test func decodesWholeConfiguration() throws {
+            #expect(
+                try JSONDecoder().decode(VAPID.Configuration.self, from: Data(
+                    """
+                    {
+                      "contactInformation" : "mailto:test@example.com",
+                      "deprecatedKeys" : [
+                        "bcZgo/p2WFqXaKFzmYaDKO/gARjWvGi3oXyHM2QNlfE="
+                      ],
+                      "expirationDuration" : 3600,
+                      "keys" : [
+                        "wyQaGWNwvXKzVmPIhkqVQvQ+FKx1SNqHJ+re8n2ORrk="
+                      ],
+                      "primaryKey" : "FniTgSrf0l+BdfeC6LiblKXBbY4LQm0S+4STNCoJI+0=",
+                      "validityDuration" : 36000
+                    }
+                    """.utf8
+                )) ==
+                VAPID.Configuration(
+                    primaryKey: key1,
+                    keys: [key2],
+                    deprecatedKeys: [key1, key2, key3],
+                    contactInformation: .email("test@example.com"),
+                    expirationDuration: .hours(1),
+                    validityDuration: .hours(10)
+                )
+            )
+        }
     }
     
     @Suite
@@ -303,6 +351,11 @@ struct VAPIDConfigurationTests {
             #expect(VAPID.Configuration.Duration.seconds(175) > VAPID.Configuration.Duration.minutes(2))
         }
         
+        @Test func addingToDates() {
+            let now = Date()
+            #expect(now.adding(.seconds(5)) == now.addingTimeInterval(5))
+        }
+        
         @Test func coding() throws {
             #expect(String(decoding: try JSONEncoder().encode(VAPID.Configuration.Duration(60)), as: UTF8.self) == "60")
             
diff --git a/Tests/WebPushTests/WebPushTests.swift b/Tests/WebPushTests/WebPushTests.swift
index 9a25d46..89024cb 100644
--- a/Tests/WebPushTests/WebPushTests.swift
+++ b/Tests/WebPushTests/WebPushTests.swift
@@ -6,6 +6,8 @@
 //  Copyright © 2024 Mochi Development, Inc. All rights reserved.
 //
 
+import AsyncHTTPClient
+@preconcurrency import Crypto
 import Foundation
 import Logging
 import ServiceLifecycle
@@ -14,27 +16,60 @@ import Testing
 
 @Suite("WebPush Manager")
 struct WebPushManagerTests {
-    @Test func webPushManagerInitializesOnItsOwn() async throws {
-        let manager = WebPushManager(vapidConfiguration: .makeTesting())
-        await withThrowingTaskGroup(of: Void.self) { group in
-            group.addTask {
-                try await manager.run()
+    @Suite
+    struct Initialization {
+        @Test func managerInitializesOnItsOwn() async throws {
+            let manager = WebPushManager(vapidConfiguration: .makeTesting())
+            await withThrowingTaskGroup(of: Void.self) { group in
+                group.addTask {
+                    try await manager.run()
+                }
+                group.cancelAll()
+            }
+        }
+        
+        @Test func managerInitializesAsService() async throws {
+            let logger = Logger(label: "ServiceLogger", factory: { PrintLogHandler(label: $0, metadataProvider: $1) })
+            let manager = WebPushManager(
+                vapidConfiguration: .makeTesting(),
+                logger: logger
+            )
+            await withThrowingTaskGroup(of: Void.self) { group in
+                group.addTask {
+                    try await ServiceGroup(services: [manager], logger: logger).run()
+                }
+                group.cancelAll()
             }
-            group.cancelAll()
         }
     }
     
-    @Test func webPushManagerInitializesAsService() async throws {
-        let logger = Logger(label: "ServiceLogger", factory: { PrintLogHandler(label: $0, metadataProvider: $1) })
-        let manager = WebPushManager(
-            vapidConfiguration: .makeTesting(),
-            logger: logger
-        )
-        await withThrowingTaskGroup(of: Void.self) { group in
-            group.addTask {
-                try await ServiceGroup(services: [manager], logger: logger).run()
+    @Suite("Sending Messages")
+    struct SendingMessages {
+        @Test func sendSuccessfulTextMessage() async throws {
+            try await confirmation { requestWasMade in
+                let vapidConfiguration = VAPID.Configuration.makeTesting()
+                
+                let subscriberPrivateKey = P256.KeyAgreement.PrivateKey(compactRepresentable: false)
+                var authenticationSecret: [UInt8] = Array(repeating: 0, count: 16)
+                for index in authenticationSecret.indices { authenticationSecret[index] = .random(in: .min ... .max) }
+                
+                let subscriber = Subscriber(
+                    endpoint: URL(string: "https://example.com/subscriber")!,
+                    userAgentKeyMaterial: UserAgentKeyMaterial(publicKey: subscriberPrivateKey.publicKey, authenticationSecret: Data(authenticationSecret)),
+                    vapidKeyID: vapidConfiguration.primaryKey!.id
+                )
+                
+                let manager = WebPushManager(
+                    vapidConfiguration: vapidConfiguration,
+                    logger: Logger(label: "WebPushManagerTests", factory: { PrintLogHandler(label: $0, metadataProvider: $1) }),
+                    executor: .httpClient(MockHTTPClient({ request in
+                        requestWasMade()
+                        return HTTPClientResponse(status: .created)
+                    }))
+                )
+                
+                try await manager.send(string: "hello", to: subscriber)
             }
-            group.cancelAll()
         }
     }