write a test for it

Sources/XMTPiOS/Client.swift

@@ -609,21 +609,20 @@ public final class Client {
 			throw ClientError.noV3Client("Error: No V3 client initialized")
 		}
 
-		if let signatureRequest = try await client.revokeAllOtherInstallations() {
-			do {
-				let signedData = try await signingKey.sign(message: signatureRequest.signatureText())
-				try await signatureRequest.addEcdsaSignature(signatureBytes: signedData.rawData)
-				try await client.registerIdentity(signatureRequest: signatureRequest)
-			} catch {
-				throw ClientError.creationError("Failed to sign the message: \(error.localizedDescription)")
-			}
+		let signatureRequest = try await client.revokeAllOtherInstallations()
+		do {
+			let signedData = try await signingKey.sign(message: signatureRequest.signatureText())
+			signatureRequest.
+			try await signatureRequest.addEcdsaSignature(signatureBytes: signedData.rawData)
+		} catch {
+			throw ClientError.creationError("Failed to sign the message: \(error.localizedDescription)")
 		}
 	}
 
 	public func inboxState(refreshFromNetwork: Bool) async throws -> InboxState {
 		guard let client = v3Client else {
 			throw ClientError.noV3Client("Error: No V3 client initialized")
 		}
-		return InboxState(ffiInboxState: client.inboxState(refreshFromNetwork: refreshFromNetwork))
+		return InboxState(ffiInboxState: try await client.inboxState(refreshFromNetwork: refreshFromNetwork))
 	}
 }

Sources/XMTPiOS/Mls/InboxState.swift

@@ -24,7 +24,7 @@ public struct InboxState {
 	}
 
 	public var installationIds: [String] {
-		ffiInboxState.installationIds.map { id in id.toHex}
+		ffiInboxState.installationIds.map { $0.toHex }
 	}
 
 	public var recoveryAddress: String {

Tests/XMTPTests/ClientTests.swift

@@ -455,4 +455,41 @@ class ClientTests: XCTestCase {
 
 		XCTAssertEqual(inboxId, alixClient.inboxID)
 	}
+
+	func testRevokesAllOtherInstallations() async throws {
+		let key = try Crypto.secureRandomBytes(count: 32)
+		let alix = try PrivateKey.generate()
+		let options = ClientOptions.init(
+			api: .init(env: .local, isSecure: false),
+			   enableV3: true,
+			   encryptionKey: key
+		   )
+
+		let alixClient = try await Client.create(
+			account: alix,
+			options: options
+		)
+		try alixClient.dropLocalDatabaseConnection()
+		try alixClient.deleteLocalDatabase()
+
+		let alixClient2 = try await Client.create(
+			account: alix,
+			options: options
+		)
+		try alixClient2.dropLocalDatabaseConnection()
+		try alixClient2.deleteLocalDatabase()
+
+		let alixClient3 = try await Client.create(
+			account: alix,
+			options: options
+		)
+
+		let state = try await alixClient3.inboxState(refreshFromNetwork: true)
+		XCTAssertEqual(state.installationIds.count, 3)
+
+		try await alixClient3.revokeAllOtherInstallations(signingKey: alix)
+
+		let newState = try await alixClient3.inboxState(refreshFromNetwork: true)
+		XCTAssertEqual(newState.installationIds.count, 1)
+	}
 }