add test run config

.idea/runConfigurations/Test.xml

@@ -0,0 +1,19 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Test" type="CargoCommandRunConfiguration" factoryName="Cargo Command" nameIsGenerated="true">
+    <option name="command" value="test" />
+    <option name="workingDirectory" value="file://$PROJECT_DIR$" />
+    <option name="emulateTerminal" value="false" />
+    <option name="channel" value="DEFAULT" />
+    <option name="requiredFeatures" value="true" />
+    <option name="allFeatures" value="true" />
+    <option name="withSudo" value="false" />
+    <option name="buildTarget" value="REMOTE" />
+    <option name="backtrace" value="SHORT" />
+    <envs />
+    <option name="isRedirectInput" value="false" />
+    <option name="redirectInputPath" value="" />
+    <method v="2">
+      <option name="CARGO.BUILD_TASK_PROVIDER" enabled="true" />
+    </method>
+  </configuration>
+</component>

src/cfdp/pdu/file_data.rs

@@ -15,6 +15,8 @@ pub enum RecordContinuationState {
     StartAndEnd = 0b11,
 }
 
+#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct SegmentMetadata<'seg_meta> {
     record_continuation_state: RecordContinuationState,
     seg_metadata_len: u8,
@@ -41,8 +43,11 @@ impl SegmentMetadata<'_> {
     }
 }
 
+#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct FileDataPdu<'seg_meta, 'file_data> {
     pdu_header: PduHeader,
+    #[cfg_attr(feature = "serde", serde(borrow))]
     segment_metadata: Option<SegmentMetadata<'seg_meta>>,
     offset: u64,
     file_data: &'file_data [u8],
@@ -101,6 +106,18 @@ impl<'seg_meta, 'file_data> FileDataPdu<'seg_meta, 'file_data> {
         len
     }
 
+    pub fn offset(&self) -> u64 {
+        self.offset
+    }
+
+    pub fn file_data(&self) -> &'file_data [u8] {
+        self.file_data
+    }
+
+    pub fn seg_metadata(&self) -> Option<&SegmentMetadata> {
+        self.segment_metadata.as_ref()
+    }
+
     pub fn write_to_bytes(&self, buf: &mut [u8]) -> Result<usize, PduError> {
         if buf.len() < self.written_len() {
             return Err(ByteConversionError::ToSliceTooSmall(SizeMissmatch {
@@ -130,8 +147,21 @@ impl<'seg_meta, 'file_data> FileDataPdu<'seg_meta, 'file_data> {
 
 #[cfg(test)]
 mod tests {
+    use crate::cfdp::pdu::file_data::FileDataPdu;
+    use crate::cfdp::pdu::{CommonPduConfig, PduHeader};
+    use crate::util::UbfU8;
+
     #[test]
     fn test_basic() {
-
+        let src_id = UbfU8::new(1);
+        let dest_id = UbfU8::new(2);
+        let transaction_seq_num = UbfU8::new(3);
+        let common_conf =
+            CommonPduConfig::new_with_defaults(src_id, dest_id, transaction_seq_num).unwrap();
+        let pdu_header = PduHeader::new_for_file_data_default(common_conf, 0);
+        let file_data: [u8; 4] = [1, 2, 3, 4];
+        let fd_pdu = FileDataPdu::new_no_seg_metadata(pdu_header, 10, &file_data);
+        assert_eq!(fd_pdu.file_data(), file_data);
+        assert_eq!(fd_pdu.offset(), 10);
     }
 }

src/cfdp/pdu/metadata.rs

@@ -47,7 +47,7 @@ pub fn build_metadata_opts_from_vec(
 
 /// Helper structure to loop through all options of a metadata PDU. It should be noted that
 /// iterators in Rust are not fallible, but the TLV creation can fail, for example if the raw TLV
-/// data in invalid for some reason. In that case, the iterator will yield [None] because there
+/// data is invalid for some reason. In that case, the iterator will yield [None] because there
 /// is no way to recover from this.
 ///
 /// The user can accumulate the length of all TLVs yielded by the iterator and compare it against

src/cfdp/pdu/mod.rs

@@ -227,8 +227,43 @@ impl PduHeader {
         seg_metadata_flag: SegmentMetadataFlag,
         seg_ctrl: SegmentationControl,
     ) -> Self {
-        PduHeader {
-            pdu_type: PduType::FileData,
+        Self::new_generic(
+            PduType::FileData,
+            pdu_conf,
+            pdu_datafield_len,
+            seg_metadata_flag,
+            seg_ctrl,
+        )
+    }
+
+    pub fn new_for_file_data_default(pdu_conf: CommonPduConfig, pdu_datafield_len: u16) -> Self {
+        Self::new_generic(
+            PduType::FileData,
+            pdu_conf,
+            pdu_datafield_len,
+            SegmentMetadataFlag::NotPresent,
+            SegmentationControl::NoRecordBoundaryPreservation,
+        )
+    }
+    pub fn new_no_file_data(pdu_conf: CommonPduConfig, pdu_datafield_len: u16) -> Self {
+        Self::new_generic(
+            PduType::FileDirective,
+            pdu_conf,
+            pdu_datafield_len,
+            SegmentMetadataFlag::NotPresent,
+            SegmentationControl::NoRecordBoundaryPreservation,
+        )
+    }
+
+    pub fn new_generic(
+        pdu_type: PduType,
+        pdu_conf: CommonPduConfig,
+        pdu_datafield_len: u16,
+        seg_metadata_flag: SegmentMetadataFlag,
+        seg_ctrl: SegmentationControl,
+    ) -> Self {
+        Self {
+            pdu_type,
             pdu_conf,
             seg_metadata_flag,
             seg_ctrl,
@@ -236,16 +271,6 @@ impl PduHeader {
         }
     }
 
-    pub fn new_no_file_data(pdu_conf: CommonPduConfig, pdu_datafield_len: u16) -> Self {
-        PduHeader {
-            pdu_type: PduType::FileDirective,
-            pdu_conf,
-            seg_metadata_flag: SegmentMetadataFlag::NotPresent,
-            seg_ctrl: SegmentationControl::NoRecordBoundaryPreservation,
-            pdu_datafield_len,
-        }
-    }
-
     /// Returns only the length of the PDU header when written to a raw buffer.
     pub fn header_len(&self) -> usize {
         FIXED_HEADER_LEN