Usage demo for Context

Leads to #94

src/bin/anise/main.rs

@@ -6,6 +6,7 @@ use anise::cli::inspect::{BpcRow, SpkRow};
 use anise::cli::CliErrors;
 use anise::file_mmap;
 use anise::naif::daf::{FileRecord, NAIFRecord, NAIFSummaryRecord};
+#[cfg(feature = "std")]
 use anise::naif::kpl::parser::convert_tpc;
 use anise::prelude::*;
 use anise::structure::dataset::{DataSet, DataSetType};

src/context/mod.rs

@@ -41,6 +41,18 @@ pub struct Context<'a> {
 
 impl<'a> fmt::Display for Context<'a> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        write!(f, "Context: #SPK = {}", self.num_loaded_spk())
+        write!(
+            f,
+            "Context: #SPK = {}\t#BPC = {}",
+            self.num_loaded_spk(),
+            self.num_loaded_bpc()
+        )?;
+        if !self.planetary_data.lut.by_id.is_empty() {
+            write!(f, "\t{}", self.planetary_data)?;
+        }
+        if !self.spacecraft_data.lut.by_id.is_empty() {
+            write!(f, "\t{}", self.spacecraft_data)?;
+        }
+        Ok(())
     }
 }

src/naif/kpl/tpc.rs

@@ -136,9 +136,23 @@ fn test_parse_gm() {
 
 #[test]
 fn test_anise_conversion() {
+    use crate::errors::AniseError;
     use crate::naif::kpl::parser::convert_tpc;
+    use crate::{file_mmap, structure::dataset::DataSet};
+    use std::fs::File;
 
     let dataset = convert_tpc("data/pck00008.tpc", "data/gm_de431.tpc").unwrap();
 
     assert_eq!(dataset.lut.by_id.len(), 47);
+
+    let path = "target/gm_pck_08.anise";
+
+    // Test saving
+    dataset.save_as(path.into(), true).unwrap();
+
+    // Test reloading
+    let bytes = file_mmap!(path).unwrap();
+    let reloaded = DataSet::from_bytes(&bytes);
+
+    assert_eq!(reloaded, dataset);
 }

tests/context/mod.rs

@@ -0,0 +1,23 @@
+#[cfg(feature = "std")]
+#[test]
+fn test_load_ctx() {
+    // Start bycreating the ANISE planetary data
+    use anise::{
+        naif::kpl::parser::convert_tpc,
+        prelude::{Context, BPC, SPK},
+    };
+
+    let dataset = convert_tpc("data/pck00008.tpc", "data/gm_de431.tpc").unwrap();
+
+    // Load BSP and BPC
+    let ctx = Context::default();
+
+    let spk = SPK::load("data/de440.bsp").unwrap();
+    let bpc = BPC::load("data/earth_latest_high_prec.bpc").unwrap();
+
+    let mut loaded_ctx = ctx.load_spk(&spk).unwrap().load_bpc(&bpc).unwrap();
+
+    loaded_ctx.planetary_data = dataset;
+
+    println!("{loaded_ctx}");
+}

tests/lib.rs

@@ -11,5 +11,6 @@
 #[macro_use]
 extern crate approx;
 mod astro;
+mod context;
 mod ephemerides;
 mod frames;