v0.2.13-pre.005

crates/ksp-interface-lib/tests/public_api.rs

@@ -1,5 +1,5 @@
 // file: crates/ksp-interface-lib/tests/public_api.rs
-// version: 3
+// version: 4
 
 //! Integration canaries for the public `ksp-interface-lib` foundation.
 
@@ -53,3 +53,27 @@ fn public_pre_004_program_instruction_contract_is_available_from_crate_root() {
     assert_eq!(ksp_interface_lib::MAX_PROGRAM_INSTRUCTION_DATA_LEN, 10_240);
     return;
 }
+
+#[test]
+fn public_pre_005_limit_error_is_observable_without_private_module_access() {
+    let program_id = ksp_interface_lib::Pubkey::new_from_array([0xC1_u8; 32]);
+    let rejected = ksp_interface_lib::ProgramInstruction::try_new(
+        program_id,
+        std::vec::Vec::new(),
+        std::vec![0xC2_u8; ksp_interface_lib::MAX_PROGRAM_INSTRUCTION_DATA_LEN + 1],
+    );
+    assert!(rejected.is_err());
+    let error = match rejected {
+        std::result::Result::Err(value) => value,
+        std::result::Result::Ok(_) => return,
+    };
+    assert_eq!(error.code(), ksp_interface_lib::ERROR_CODE_PROGRAM_INSTRUCTION_LIMIT_EXCEEDED);
+    assert_eq!(error.context().len(), 3);
+    assert_eq!(error.context()[0].key(), "field");
+    assert_eq!(error.context()[0].value(), "data");
+    assert_eq!(error.context()[1].key(), "actual_len");
+    assert_eq!(error.context()[1].value(), "10241");
+    assert_eq!(error.context()[2].key(), "maximum_len");
+    assert_eq!(error.context()[2].value(), "10240");
+    return;
+}