diff --git a/matter/src/core.rs b/matter/src/core.rs
index 68c07f4..9f1b13b 100644
--- a/matter/src/core.rs
+++ b/matter/src/core.rs
@@ -61,12 +61,14 @@ impl Matter {
         let mdns = Mdns::get()?;
         mdns.set_values(dev_det.vid, dev_det.pid, &dev_det.device_name);
 
-        print_pairing_code_and_qr(&dev_det, &dev_comm, DiscoveryCapabilities::default());
-
         let fabric_mgr = Arc::new(FabricMgr::new()?);
+        let open_comm_window = fabric_mgr.is_empty();
+        if open_comm_window {
+            print_pairing_code_and_qr(&dev_det, &dev_comm, DiscoveryCapabilities::default());
+        }
+
         let acl_mgr = Arc::new(AclMgr::new()?);
         let mut pase = PaseMgr::new();
-        let open_comm_window = fabric_mgr.is_empty();
         let data_model =
             DataModel::new(dev_det, dev_att, fabric_mgr.clone(), acl_mgr, pase.clone())?;
         let mut matter = Box::new(Matter {
diff --git a/matter/src/data_model/cluster_basic_information.rs b/matter/src/data_model/cluster_basic_information.rs
index 3026138..4560cc5 100644
--- a/matter/src/data_model/cluster_basic_information.rs
+++ b/matter/src/data_model/cluster_basic_information.rs
@@ -22,7 +22,7 @@ use num_derive::FromPrimitive;
 pub const ID: u32 = 0x0028;
 
 #[derive(FromPrimitive)]
-enum Attributes {
+pub enum Attributes {
     DMRevision = 0,
     VendorId = 2,
     ProductId = 4,
diff --git a/matter/src/data_model/cluster_media_playback.rs b/matter/src/data_model/cluster_media_playback.rs
index c53162f..92f7b39 100644
--- a/matter/src/data_model/cluster_media_playback.rs
+++ b/matter/src/data_model/cluster_media_playback.rs
@@ -55,7 +55,7 @@ enum PlaybackState {
     Playing = 0,
     Paused = 1,
     NotPlaying = 2,
-    BUFFERING = 3,
+    Buffering = 3,
 }
 #[derive(FromPrimitive)]
 enum CommandStatus {
@@ -186,10 +186,7 @@ impl MediaPlaybackCluster {
     }
 
     pub fn add_callback(&mut self, name: Commands, callback: Box<dyn FnMut()>) {
-        self.callbacks.push(ClusterCallback {
-            name,
-            callback: callback,
-        });
+        self.callbacks.push(ClusterCallback { name, callback });
     }
 
     fn run_callback(&mut self, name: Commands) {
diff --git a/matter/src/data_model/core/read.rs b/matter/src/data_model/core/read.rs
index eb12a5b..c450073 100644
--- a/matter/src/data_model/core/read.rs
+++ b/matter/src/data_model/core/read.rs
@@ -221,7 +221,7 @@ impl DataModel {
         //
         // This is the amount of space we reserve for other things to be attached towards
         // the end
-        const RESERVE_SIZE: usize = 18;
+        const RESERVE_SIZE: usize = 24;
         let mut new_wb = wb_shrink!(old_wb, RESERVE_SIZE);
         let mut tw = TLVWriter::new(&mut new_wb);
 
diff --git a/matter/src/data_model/objects/encoder.rs b/matter/src/data_model/objects/encoder.rs
index 24a81aa..d565316 100644
--- a/matter/src/data_model/objects/encoder.rs
+++ b/matter/src/data_model/objects/encoder.rs
@@ -42,7 +42,7 @@ pub enum EncodeValue<'a> {
     Tlv(TLVElement<'a>),
     /// This indicates a static value. This variant is typically used in the transmit/
     /// to-tlv path
-    Value(&'a (dyn ToTLV)),
+    Value(&'a dyn ToTLV),
 }
 
 impl<'a> EncodeValue<'a> {
diff --git a/matter/src/data_model/sdm/noc.rs b/matter/src/data_model/sdm/noc.rs
index b8c5e94..7785fbd 100644
--- a/matter/src/data_model/sdm/noc.rs
+++ b/matter/src/data_model/sdm/noc.rs
@@ -81,7 +81,7 @@ pub enum Commands {
 }
 
 #[derive(FromPrimitive)]
-enum Attributes {
+pub enum Attributes {
     NOCs = 0,
     Fabrics = 1,
     SupportedFabrics = 2,
diff --git a/matter/src/data_model/system_model/descriptor.rs b/matter/src/data_model/system_model/descriptor.rs
index ac778bb..010ed0a 100644
--- a/matter/src/data_model/system_model/descriptor.rs
+++ b/matter/src/data_model/system_model/descriptor.rs
@@ -28,7 +28,7 @@ pub const ID: u32 = 0x001D;
 
 #[derive(FromPrimitive)]
 #[allow(clippy::enum_variant_names)]
-enum Attributes {
+pub enum Attributes {
     DeviceTypeList = 0,
     ServerList = 1,
     ClientList = 2,
diff --git a/matter/src/interaction_model/messages.rs b/matter/src/interaction_model/messages.rs
index 3c164ae..d1de33f 100644
--- a/matter/src/interaction_model/messages.rs
+++ b/matter/src/interaction_model/messages.rs
@@ -76,7 +76,7 @@ pub mod msg {
         EventPath,
     };
 
-    #[derive(FromTLV)]
+    #[derive(Default, FromTLV, ToTLV)]
     #[tlvargs(lifetime = "'a")]
     pub struct SubscribeReq<'a> {
         pub keep_subs: bool,
@@ -92,6 +92,20 @@ pub mod msg {
     }
 
     impl<'a> SubscribeReq<'a> {
+        pub fn new(fabric_filtered: bool, min_int_floor: u16, max_int_ceil: u16) -> Self {
+            Self {
+                fabric_filtered,
+                min_int_floor,
+                max_int_ceil,
+                ..Default::default()
+            }
+        }
+
+        pub fn set_attr_requests(mut self, requests: &'a [AttrPath]) -> Self {
+            self.attr_requests = Some(TLVArray::new(requests));
+            self
+        }
+
         pub fn to_read_req(&self) -> ReadReq<'a> {
             ReadReq {
                 attr_requests: self.attr_requests,
@@ -103,7 +117,7 @@ pub mod msg {
         }
     }
 
-    #[derive(ToTLV)]
+    #[derive(Debug, FromTLV, ToTLV)]
     pub struct SubscribeResp {
         pub subs_id: u32,
         // The Context Tags are discontiguous for some reason
diff --git a/matter/tests/common/attributes.rs b/matter/tests/common/attributes.rs
index 1131c27..1879adf 100644
--- a/matter/tests/common/attributes.rs
+++ b/matter/tests/common/attributes.rs
@@ -15,10 +15,14 @@
  *    limitations under the License.
  */
 
-use matter::interaction_model::{messages::ib::AttrResp, messages::msg::ReportDataMsg};
+use matter::{
+    interaction_model::{messages::ib::AttrResp, messages::msg::ReportDataMsg},
+    tlv::{TLVElement, TLVList, TLVWriter, TagType, ToTLV},
+    utils::writebuf::WriteBuf,
+};
 
 /// Assert that the data received in the outbuf matches our expectations
-pub fn assert_attr_report(received: &ReportDataMsg, expected: &[AttrResp]) {
+pub fn __assert_attr_report(received: &ReportDataMsg, expected: &[AttrResp], skip_data: bool) {
     let mut index = 0;
 
     // We can't use assert_eq because it will also try to match data-version
@@ -29,7 +33,9 @@ pub fn assert_attr_report(received: &ReportDataMsg, expected: &[AttrResp]) {
                 AttrResp::Data(d) => {
                     // We don't match the data-version
                     assert_eq!(e_d.path, d.path);
-                    assert_eq!(e_d.data, d.data);
+                    if !skip_data {
+                        assert_eq!(e_d.data, d.data);
+                    }
                 }
                 _ => {
                     panic!("Invalid response, expected AttrRespIn::Data");
@@ -43,12 +49,36 @@ pub fn assert_attr_report(received: &ReportDataMsg, expected: &[AttrResp]) {
     assert_eq!(index, expected.len());
 }
 
+pub fn assert_attr_report(received: &ReportDataMsg, expected: &[AttrResp]) {
+    __assert_attr_report(received, expected, false)
+}
+
+pub fn assert_attr_report_skip_data(received: &ReportDataMsg, expected: &[AttrResp]) {
+    __assert_attr_report(received, expected, true)
+}
+
 // We have to hard-code this here, and it should match the tag
 // of the 'data' part in AttrData
 pub const ATTR_DATA_TAG_DATA: u8 = 2;
 
 #[macro_export]
 macro_rules! attr_data {
+    ($endpoint:expr, $cluster:expr, $attr: expr, $data:expr) => {
+        AttrResp::Data(AttrData {
+            data_ver: None,
+            path: AttrPath {
+                endpoint: Some($endpoint),
+                cluster: Some($cluster),
+                attr: Some($attr as u16),
+                ..Default::default()
+            },
+            data: EncodeValue::Tlv(TLVElement::new(TagType::Context(ATTR_DATA_TAG_DATA), $data)),
+        })
+    };
+}
+
+#[macro_export]
+macro_rules! attr_data_path {
     ($path:expr, $data:expr) => {
         AttrResp::Data(AttrData {
             data_ver: None,
@@ -69,3 +99,37 @@ macro_rules! attr_status {
         AttrResp::Status(AttrStatus::new($path, $status, 0))
     };
 }
+
+pub struct TLVHolder {
+    buf: [u8; 100],
+    used_len: usize,
+}
+
+impl TLVHolder {
+    pub fn new_array<'a, T, I>(ctx_tag: u8, data: I) -> Self
+    where
+        T: ToTLV + 'a,
+        I: IntoIterator<Item = &'a T>,
+    {
+        let mut s = Self {
+            buf: [0; 100],
+            used_len: 0,
+        };
+        let buf_len = s.buf.len();
+        let mut wb = WriteBuf::new(&mut s.buf, buf_len);
+        let mut tw = TLVWriter::new(&mut wb);
+        let _ = tw.start_array(TagType::Context(ctx_tag));
+        for e in data {
+            let _ = e.to_tlv(&mut tw, TagType::Anonymous);
+        }
+        let _ = tw.end_container();
+
+        s.used_len = wb.as_slice().len();
+        s
+    }
+
+    pub fn to_tlv(&self) -> TLVElement {
+        let s = &self.buf[..self.used_len];
+        TLVList::new(s).iter().next().unwrap()
+    }
+}
diff --git a/matter/tests/data_model/acl_and_dataver.rs b/matter/tests/data_model/acl_and_dataver.rs
index 6627cde..493a282 100644
--- a/matter/tests/data_model/acl_and_dataver.rs
+++ b/matter/tests/data_model/acl_and_dataver.rs
@@ -34,7 +34,7 @@ use matter::{
 };
 
 use crate::{
-    attr_data, attr_status,
+    attr_data_path, attr_status,
     common::{
         attributes::*,
         echo_cluster::{self, ATTR_WRITE_DEFAULT_VALUE},
@@ -151,7 +151,7 @@ fn wc_read_attribute() {
 
     // Test2: Only Single response as only single endpoint is allowed
     let input = &[AttrPath::new(&wc_att1)];
-    let expected = &[attr_data!(ep0_att1, ElementType::U16(0x1234))];
+    let expected = &[attr_data_path!(ep0_att1, ElementType::U16(0x1234))];
     handle_read_reqs(&mut im, peer, input, expected);
 
     // Add ACL to allow our peer to only access endpoint 1
@@ -163,8 +163,8 @@ fn wc_read_attribute() {
     // Test3: Both responses are valid
     let input = &[AttrPath::new(&wc_att1)];
     let expected = &[
-        attr_data!(ep0_att1, ElementType::U16(0x1234)),
-        attr_data!(ep1_att1, ElementType::U16(0x1234)),
+        attr_data_path!(ep0_att1, ElementType::U16(0x1234)),
+        attr_data_path!(ep1_att1, ElementType::U16(0x1234)),
     ];
     handle_read_reqs(&mut im, peer, input, expected);
 }
@@ -201,7 +201,7 @@ fn exact_read_attribute() {
 
     // Test2: Only Single response as only single endpoint is allowed
     let input = &[AttrPath::new(&wc_att1)];
-    let expected = &[attr_data!(ep0_att1, ElementType::U16(0x1234))];
+    let expected = &[attr_data_path!(ep0_att1, ElementType::U16(0x1234))];
     handle_read_reqs(&mut im, peer, input, expected);
 }
 
@@ -565,7 +565,7 @@ fn test_read_data_ver() {
     let input = &[AttrPath::new(&wc_ep_att1)];
 
     let expected = &[
-        attr_data!(
+        attr_data_path!(
             GenericPath::new(
                 Some(0),
                 Some(echo_cluster::ID),
@@ -573,7 +573,7 @@ fn test_read_data_ver() {
             ),
             ElementType::U16(0x1234)
         ),
-        attr_data!(
+        attr_data_path!(
             GenericPath::new(
                 Some(1),
                 Some(echo_cluster::ID),
@@ -614,7 +614,7 @@ fn test_read_data_ver() {
         Some(TLVArray::Slice(&dataver_filter)),
         &mut out_buf,
     );
-    let expected_only_one = &[attr_data!(
+    let expected_only_one = &[attr_data_path!(
         GenericPath::new(
             Some(1),
             Some(echo_cluster::ID),
diff --git a/matter/tests/data_model/attributes.rs b/matter/tests/data_model/attributes.rs
index f0a5111..091b89f 100644
--- a/matter/tests/data_model/attributes.rs
+++ b/matter/tests/data_model/attributes.rs
@@ -29,12 +29,11 @@ use matter::{
             msg::{ReadReq, ReportDataMsg, WriteReq, WriteResp},
         },
     },
-    tlv::{self, ElementType, FromTLV, TLVElement, TLVList, TLVWriter, TagType},
-    utils::writebuf::WriteBuf,
+    tlv::{self, ElementType, FromTLV, TLVElement, TLVWriter, TagType},
 };
 
 use crate::{
-    attr_data, attr_status,
+    attr_data, attr_data_path, attr_status,
     common::{attributes::*, echo_cluster, im_engine::im_engine},
 };
 
@@ -95,9 +94,9 @@ fn test_read_success() {
         AttrPath::new(&ep1_attcustom),
     ];
     let expected = &[
-        attr_data!(ep0_att1, ElementType::U16(0x1234)),
-        attr_data!(ep1_att2, ElementType::U16(0x5678)),
-        attr_data!(
+        attr_data_path!(ep0_att1, ElementType::U16(0x1234)),
+        attr_data_path!(ep1_att2, ElementType::U16(0x5678)),
+        attr_data_path!(
             ep1_attcustom,
             ElementType::U32(echo_cluster::ATTR_CUSTOM_VALUE)
         ),
@@ -168,19 +167,15 @@ fn test_read_wc_endpoint_all_have_clusters() {
 
     let expected = &[
         attr_data!(
-            GenericPath::new(
-                Some(0),
-                Some(echo_cluster::ID),
-                Some(echo_cluster::Attributes::Att1 as u32)
-            ),
+            0,
+            echo_cluster::ID,
+            echo_cluster::Attributes::Att1,
             ElementType::U16(0x1234)
         ),
         attr_data!(
-            GenericPath::new(
-                Some(1),
-                Some(echo_cluster::ID),
-                Some(echo_cluster::Attributes::Att1 as u32)
-            ),
+            1,
+            echo_cluster::ID,
+            echo_cluster::Attributes::Att1,
             ElementType::U16(0x1234)
         ),
     ];
@@ -201,7 +196,7 @@ fn test_read_wc_endpoint_only_1_has_cluster() {
     );
     let input = &[AttrPath::new(&wc_ep_onoff)];
 
-    let expected = &[attr_data!(
+    let expected = &[attr_data_path!(
         GenericPath::new(
             Some(1),
             Some(cluster_on_off::ID),
@@ -212,19 +207,6 @@ fn test_read_wc_endpoint_only_1_has_cluster() {
     handle_read_reqs(input, expected);
 }
 
-fn get_tlvs<'a>(buf: &'a mut [u8], data: &[u16]) -> TLVElement<'a> {
-    let buf_len = buf.len();
-    let mut wb = WriteBuf::new(buf, buf_len);
-    let mut tw = TLVWriter::new(&mut wb);
-    let _ = tw.start_array(TagType::Context(2));
-    for e in data {
-        let _ = tw.u16(TagType::Anonymous, *e);
-    }
-    let _ = tw.end_container();
-    let tlv_array = TLVList::new(wb.as_slice()).iter().next().unwrap();
-    tlv_array
-}
-
 #[test]
 fn test_read_wc_endpoint_wc_attribute() {
     // 1 Attr Read Request
@@ -234,9 +216,8 @@ fn test_read_wc_endpoint_wc_attribute() {
     let wc_ep_wc_attr = GenericPath::new(None, Some(echo_cluster::ID), None);
     let input = &[AttrPath::new(&wc_ep_wc_attr)];
 
-    let mut buf = [0u8; 100];
-    let attr_list_tlvs = get_tlvs(
-        &mut buf,
+    let attr_list = TLVHolder::new_array(
+        2,
         &[
             GlobalElements::FeatureMap as u16,
             GlobalElements::AttributeList as u16,
@@ -246,9 +227,10 @@ fn test_read_wc_endpoint_wc_attribute() {
             echo_cluster::Attributes::AttCustom as u16,
         ],
     );
+    let attr_list_tlv = attr_list.to_tlv();
 
     let expected = &[
-        attr_data!(
+        attr_data_path!(
             GenericPath::new(
                 Some(0),
                 Some(echo_cluster::ID),
@@ -256,15 +238,15 @@ fn test_read_wc_endpoint_wc_attribute() {
             ),
             ElementType::U8(0)
         ),
-        attr_data!(
+        attr_data_path!(
             GenericPath::new(
                 Some(0),
                 Some(echo_cluster::ID),
                 Some(GlobalElements::AttributeList as u32),
             ),
-            attr_list_tlvs.get_element_type()
+            attr_list_tlv.get_element_type()
         ),
-        attr_data!(
+        attr_data_path!(
             GenericPath::new(
                 Some(0),
                 Some(echo_cluster::ID),
@@ -272,7 +254,7 @@ fn test_read_wc_endpoint_wc_attribute() {
             ),
             ElementType::U16(0x1234)
         ),
-        attr_data!(
+        attr_data_path!(
             GenericPath::new(
                 Some(0),
                 Some(echo_cluster::ID),
@@ -280,7 +262,7 @@ fn test_read_wc_endpoint_wc_attribute() {
             ),
             ElementType::U16(0x5678)
         ),
-        attr_data!(
+        attr_data_path!(
             GenericPath::new(
                 Some(0),
                 Some(echo_cluster::ID),
@@ -288,7 +270,7 @@ fn test_read_wc_endpoint_wc_attribute() {
             ),
             ElementType::U32(echo_cluster::ATTR_CUSTOM_VALUE)
         ),
-        attr_data!(
+        attr_data_path!(
             GenericPath::new(
                 Some(1),
                 Some(echo_cluster::ID),
@@ -296,15 +278,15 @@ fn test_read_wc_endpoint_wc_attribute() {
             ),
             ElementType::U8(0)
         ),
-        attr_data!(
+        attr_data_path!(
             GenericPath::new(
                 Some(1),
                 Some(echo_cluster::ID),
                 Some(GlobalElements::AttributeList as u32),
             ),
-            attr_list_tlvs.get_element_type()
+            attr_list_tlv.get_element_type()
         ),
-        attr_data!(
+        attr_data_path!(
             GenericPath::new(
                 Some(1),
                 Some(echo_cluster::ID),
@@ -312,7 +294,7 @@ fn test_read_wc_endpoint_wc_attribute() {
             ),
             ElementType::U16(0x1234)
         ),
-        attr_data!(
+        attr_data_path!(
             GenericPath::new(
                 Some(1),
                 Some(echo_cluster::ID),
@@ -320,7 +302,7 @@ fn test_read_wc_endpoint_wc_attribute() {
             ),
             ElementType::U16(0x5678)
         ),
-        attr_data!(
+        attr_data_path!(
             GenericPath::new(
                 Some(1),
                 Some(echo_cluster::ID),
diff --git a/matter/tests/data_model/long_reads.rs b/matter/tests/data_model/long_reads.rs
new file mode 100644
index 0000000..9f7957a
--- /dev/null
+++ b/matter/tests/data_model/long_reads.rs
@@ -0,0 +1,224 @@
+/*
+ *
+ *    Copyright (c) 2020-2022 Project CHIP Authors
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+use matter::{
+    data_model::{
+        cluster_basic_information as basic_info, cluster_on_off as onoff,
+        objects::{EncodeValue, GlobalElements},
+        sdm::{admin_commissioning as adm_comm, general_commissioning as gen_comm, noc},
+        system_model::{access_control as acl, descriptor},
+    },
+    interaction_model::{
+        core::{IMStatusCode, OpCode},
+        messages::{
+            ib::{AttrData, AttrPath, AttrResp},
+            msg::{ReadReq, ReportDataMsg, StatusResp, SubscribeResp},
+        },
+        messages::{msg::SubscribeReq, GenericPath},
+    },
+    tlv::{self, ElementType, FromTLV, TLVElement, TagType, ToTLV},
+    transport::{
+        exchange::{self, Exchange},
+        udp::MAX_RX_BUF_SIZE,
+    },
+};
+
+use crate::{
+    attr_data,
+    common::{
+        attributes::*,
+        echo_cluster as echo,
+        im_engine::{ImEngine, ImInput},
+    },
+};
+
+pub struct LongRead {
+    im_engine: ImEngine,
+}
+
+impl LongRead {
+    pub fn new() -> Self {
+        let mut im_engine = ImEngine::new();
+        // Use the same exchange for all parts of the transaction
+        im_engine.exch = Some(Exchange::new(1, 0, exchange::Role::Responder));
+        Self { im_engine }
+    }
+
+    pub fn process<'a>(
+        &mut self,
+        action: OpCode,
+        data: &dyn ToTLV,
+        data_out: &'a mut [u8],
+    ) -> (u8, &'a mut [u8]) {
+        let input = ImInput::new(action, data);
+        let (response, output) = self.im_engine.process(&input, data_out);
+        (response, output)
+    }
+}
+
+fn wildcard_read_resp(part: u8) -> Vec<AttrResp<'static>> {
+    // For brevity, we only check the AttrPath, not the actual 'data'
+    let dont_care = ElementType::U8(0);
+    let part1 = vec![
+        attr_data!(0, 29, GlobalElements::FeatureMap, dont_care),
+        attr_data!(0, 29, GlobalElements::AttributeList, dont_care),
+        attr_data!(0, 29, descriptor::Attributes::DeviceTypeList, dont_care),
+        attr_data!(0, 29, descriptor::Attributes::ServerList, dont_care),
+        attr_data!(0, 29, descriptor::Attributes::PartsList, dont_care),
+        attr_data!(0, 29, descriptor::Attributes::ClientList, dont_care),
+        attr_data!(0, 40, GlobalElements::FeatureMap, dont_care),
+        attr_data!(0, 40, GlobalElements::AttributeList, dont_care),
+        attr_data!(0, 40, basic_info::Attributes::DMRevision, dont_care),
+        attr_data!(0, 40, basic_info::Attributes::VendorId, dont_care),
+        attr_data!(0, 40, basic_info::Attributes::ProductId, dont_care),
+        attr_data!(0, 40, basic_info::Attributes::HwVer, dont_care),
+        attr_data!(0, 40, basic_info::Attributes::SwVer, dont_care),
+        attr_data!(0, 40, basic_info::Attributes::SwVerString, dont_care),
+        attr_data!(0, 40, basic_info::Attributes::SerialNo, dont_care),
+        attr_data!(0, 48, GlobalElements::FeatureMap, dont_care),
+        attr_data!(0, 48, GlobalElements::AttributeList, dont_care),
+        attr_data!(0, 48, gen_comm::Attributes::BreadCrumb, dont_care),
+        attr_data!(0, 48, gen_comm::Attributes::RegConfig, dont_care),
+        attr_data!(0, 48, gen_comm::Attributes::LocationCapability, dont_care),
+        attr_data!(
+            0,
+            48,
+            gen_comm::Attributes::BasicCommissioningInfo,
+            dont_care
+        ),
+        attr_data!(0, 49, GlobalElements::FeatureMap, dont_care),
+        attr_data!(0, 49, GlobalElements::AttributeList, dont_care),
+        attr_data!(0, 60, GlobalElements::FeatureMap, dont_care),
+        attr_data!(0, 60, GlobalElements::AttributeList, dont_care),
+        attr_data!(0, 60, adm_comm::Attributes::WindowStatus, dont_care),
+        attr_data!(0, 60, adm_comm::Attributes::AdminFabricIndex, dont_care),
+        attr_data!(0, 60, adm_comm::Attributes::AdminVendorId, dont_care),
+        attr_data!(0, 62, GlobalElements::FeatureMap, dont_care),
+        attr_data!(0, 62, GlobalElements::AttributeList, dont_care),
+        attr_data!(0, 62, noc::Attributes::CurrentFabricIndex, dont_care),
+        attr_data!(0, 62, noc::Attributes::Fabrics, dont_care),
+        attr_data!(0, 62, noc::Attributes::SupportedFabrics, dont_care),
+        attr_data!(0, 62, noc::Attributes::CommissionedFabrics, dont_care),
+        attr_data!(0, 31, GlobalElements::FeatureMap, dont_care),
+        attr_data!(0, 31, GlobalElements::AttributeList, dont_care),
+        attr_data!(0, 31, acl::Attributes::Acl, dont_care),
+        attr_data!(0, 31, acl::Attributes::Extension, dont_care),
+        attr_data!(0, 31, acl::Attributes::SubjectsPerEntry, dont_care),
+        attr_data!(0, 31, acl::Attributes::TargetsPerEntry, dont_care),
+        attr_data!(0, 31, acl::Attributes::EntriesPerFabric, dont_care),
+        attr_data!(0, echo::ID, GlobalElements::FeatureMap, dont_care),
+        attr_data!(0, echo::ID, GlobalElements::AttributeList, dont_care),
+        attr_data!(0, echo::ID, echo::Attributes::Att1, dont_care),
+        attr_data!(0, echo::ID, echo::Attributes::Att2, dont_care),
+        attr_data!(0, echo::ID, echo::Attributes::AttCustom, dont_care),
+        attr_data!(1, 29, GlobalElements::FeatureMap, dont_care),
+        attr_data!(1, 29, GlobalElements::AttributeList, dont_care),
+        attr_data!(1, 29, descriptor::Attributes::DeviceTypeList, dont_care),
+    ];
+
+    let part2 = vec![
+        attr_data!(1, 29, descriptor::Attributes::ServerList, dont_care),
+        attr_data!(1, 29, descriptor::Attributes::PartsList, dont_care),
+        attr_data!(1, 29, descriptor::Attributes::ClientList, dont_care),
+        attr_data!(1, 6, GlobalElements::FeatureMap, dont_care),
+        attr_data!(1, 6, GlobalElements::AttributeList, dont_care),
+        attr_data!(1, 6, onoff::Attributes::OnOff, dont_care),
+        attr_data!(1, echo::ID, GlobalElements::FeatureMap, dont_care),
+        attr_data!(1, echo::ID, GlobalElements::AttributeList, dont_care),
+        attr_data!(1, echo::ID, echo::Attributes::Att1, dont_care),
+        attr_data!(1, echo::ID, echo::Attributes::Att2, dont_care),
+        attr_data!(1, echo::ID, echo::Attributes::AttCustom, dont_care),
+    ];
+
+    if part == 1 {
+        part1
+    } else {
+        part2
+    }
+}
+
+#[test]
+fn test_long_read_success() {
+    // Read the entire attribute database, which requires 2 reads to complete
+    let _ = env_logger::try_init();
+    let mut lr = LongRead::new();
+    let mut output = [0_u8; MAX_RX_BUF_SIZE + 100];
+
+    let wc_path = GenericPath::new(None, None, None);
+
+    let read_all = [AttrPath::new(&wc_path)];
+    let read_req = ReadReq::new(true).set_attr_requests(&read_all);
+    let expected_part1 = wildcard_read_resp(1);
+    let (out_code, out_data) = lr.process(OpCode::ReadRequest, &read_req, &mut output);
+    let root = tlv::get_root_node_struct(out_data).unwrap();
+    let report_data = ReportDataMsg::from_tlv(&root).unwrap();
+    assert_attr_report_skip_data(&report_data, &expected_part1);
+    assert_eq!(report_data.more_chunks, Some(true));
+    assert_eq!(out_code, OpCode::ReportData as u8);
+
+    // Ask for the next read by sending a status report
+    let status_report = StatusResp {
+        status: IMStatusCode::Success,
+    };
+    let expected_part2 = wildcard_read_resp(2);
+    let (out_code, out_data) = lr.process(OpCode::StatusResponse, &status_report, &mut output);
+    let root = tlv::get_root_node_struct(out_data).unwrap();
+    let report_data = ReportDataMsg::from_tlv(&root).unwrap();
+    assert_attr_report_skip_data(&report_data, &expected_part2);
+    assert_eq!(report_data.more_chunks, None);
+    assert_eq!(out_code, OpCode::ReportData as u8);
+}
+
+#[test]
+fn test_long_read_subscription_success() {
+    // Subscribe to the entire attribute database, which requires 2 reads to complete
+    let _ = env_logger::try_init();
+    let mut lr = LongRead::new();
+    let mut output = [0_u8; MAX_RX_BUF_SIZE + 100];
+
+    let wc_path = GenericPath::new(None, None, None);
+
+    let read_all = [AttrPath::new(&wc_path)];
+    let subs_req = SubscribeReq::new(true, 1, 20).set_attr_requests(&read_all);
+    let expected_part1 = wildcard_read_resp(1);
+    let (out_code, out_data) = lr.process(OpCode::SubscribeRequest, &subs_req, &mut output);
+    let root = tlv::get_root_node_struct(out_data).unwrap();
+    let report_data = ReportDataMsg::from_tlv(&root).unwrap();
+    assert_attr_report_skip_data(&report_data, &expected_part1);
+    assert_eq!(report_data.more_chunks, Some(true));
+    assert_eq!(out_code, OpCode::ReportData as u8);
+
+    // Ask for the next read by sending a status report
+    let status_report = StatusResp {
+        status: IMStatusCode::Success,
+    };
+    let expected_part2 = wildcard_read_resp(2);
+    let (out_code, out_data) = lr.process(OpCode::StatusResponse, &status_report, &mut output);
+    let root = tlv::get_root_node_struct(out_data).unwrap();
+    let report_data = ReportDataMsg::from_tlv(&root).unwrap();
+    assert_attr_report_skip_data(&report_data, &expected_part2);
+    assert_eq!(report_data.more_chunks, None);
+    assert_eq!(out_code, OpCode::ReportData as u8);
+
+    // Finally confirm subscription
+    let (out_code, out_data) = lr.process(OpCode::StatusResponse, &status_report, &mut output);
+    tlv::print_tlv_list(out_data);
+    let root = tlv::get_root_node_struct(out_data).unwrap();
+    let subs_resp = SubscribeResp::from_tlv(&root).unwrap();
+    assert_eq!(out_code, OpCode::SubscriptResponse as u8);
+    assert_eq!(subs_resp.subs_id, 1);
+}
diff --git a/matter/tests/data_model_tests.rs b/matter/tests/data_model_tests.rs
index 64a6f90..392909f 100644
--- a/matter/tests/data_model_tests.rs
+++ b/matter/tests/data_model_tests.rs
@@ -22,5 +22,6 @@ mod data_model {
     mod attribute_lists;
     mod attributes;
     mod commands;
+    mod long_reads;
     mod timed_requests;
 }