fix: fix bug in the Program deser, add tests

core/src/program.rs

@@ -151,7 +151,7 @@ impl Deserializable for Program {
         let kernel = source.read()?;
         let entrypoint = MastNodeId::from_u32_safe(source.read_u32()?, &mast_forest)?;
 
-        if mast_forest.is_procedure_root(entrypoint) {
+        if !mast_forest.is_procedure_root(entrypoint) {
             return Err(DeserializationError::InvalidValue(format!(
                 "entrypoint {entrypoint} is not a procedure"
             )));

miden/tests/integration/main.rs

@@ -7,6 +7,7 @@ mod cli;
 mod exec_iters;
 mod flow_control;
 mod operations;
+mod program;
 
 // TESTS
 // ================================================================================================

miden/tests/integration/program.rs

@@ -0,0 +1,61 @@
+use alloc::vec::Vec;
+
+use assembly::Assembler;
+use miden_vm::Program;
+use test_utils::serde::{Deserializable, Serializable};
+
+// PROGRAM SERIALIZATION AND DESERIALIZATION TESTS
+// =================================================================
+
+#[test]
+fn test_program_serde_simple() {
+    let source = "
+    begin
+        push.1.2
+        add
+        drop
+    end
+    ";
+
+    let assembler = Assembler::default();
+    let original_program = assembler.assemble_program(source).unwrap();
+
+    let mut target = Vec::new();
+    original_program.write_into(&mut target);
+    let deserialized_program = Program::read_from_bytes(&target).unwrap();
+
+    assert_eq!(original_program, deserialized_program);
+}
+
+#[test]
+fn test_program_serde_with_decorators() {
+    let source = "
+    const.DEFAULT_CONST=100
+
+    proc.foo
+        push.1.2 add
+        debug.stack.8
+    end
+
+    begin
+        emit.DEFAULT_CONST
+
+        exec.foo
+
+        debug.stack.4
+
+        drop
+
+        trace.DEFAULT_CONST
+    end
+    ";
+
+    let assembler = Assembler::default().with_debug_mode(true);
+    let original_program = assembler.assemble_program(source).unwrap();
+
+    let mut target = Vec::new();
+    original_program.write_into(&mut target);
+    let deserialized_program = Program::read_from_bytes(&target).unwrap();
+
+    assert_eq!(original_program, deserialized_program);
+}