1 files changed, 86 insertions, 0 deletions
diff --git a/tests/enum_sizes/enumsizes.proto b/tests/enum_sizes/enumsizes.proto
new file mode 100644
index 0000000..a85d416
--- /dev/null
+++ b/tests/enum_sizes/enumsizes.proto
@@ -0,0 +1,86 @@
+/* Test handling of enums with different value ranges.
+ * Depending on compiler and the packed_enum setting, the datatypes
+ * for enums can be either signed or unsigned. In past this has caused
+ * a bit of a problem for the encoder/decoder (issue #164).
+ */
+
+syntax = "proto2";
+
+import 'nanopb.proto';
+
+option (nanopb_fileopt).long_names = false;
+
+enum UnpackedUint8 {
+    option (nanopb_enumopt).packed_enum = false;
+    UU8_MIN = 0;
+    UU8_MAX = 255;
+}
+
+enum PackedUint8 {
+    option (nanopb_enumopt).packed_enum = true;
+    PU8_MIN = 0;
+    PU8_MAX = 255;
+}
+
+enum UnpackedInt8 {
+    option (nanopb_enumopt).packed_enum = false;
+    UI8_MIN = -128;
+    UI8_MAX = 127;
+}
+
+enum PackedInt8 {
+    option (nanopb_enumopt).packed_enum = true;
+    PI8_MIN = -128;
+    PI8_MAX = 127;
+}
+
+enum UnpackedUint16 {
+    option (nanopb_enumopt).packed_enum = false;
+    UU16_MIN = 0;
+    UU16_MAX = 65535;
+}
+
+enum PackedUint16 {
+    option (nanopb_enumopt).packed_enum = true;
+    PU16_MIN = 0;
+    PU16_MAX = 65535;
+}
+
+enum UnpackedInt16 {
+    option (nanopb_enumopt).packed_enum = false;
+    UI16_MIN = -32768;
+    UI16_MAX = 32767;
+}
+
+enum PackedInt16 {
+    option (nanopb_enumopt).packed_enum = true;
+    PI16_MIN = -32768;
+    PI16_MAX = 32767;
+}
+
+/* Protobuf supports enums up to 32 bits.
+ * The 32 bit case is covered by HugeEnum in the alltypes test.
+ */
+
+message PackedEnums {
+    required PackedUint8  u8_min  = 1;
+    required PackedUint8  u8_max  = 2;
+    required PackedInt8   i8_min  = 3;
+    required PackedInt8   i8_max  = 4;
+    required PackedUint16 u16_min = 5;
+    required PackedUint16 u16_max = 6;
+    required PackedInt16  i16_min = 7;
+    required PackedInt16  i16_max = 8;
+}
+
+message UnpackedEnums {
+    required UnpackedUint8  u8_min  = 1;
+    required UnpackedUint8  u8_max  = 2;
+    required UnpackedInt8   i8_min  = 3;
+    required UnpackedInt8   i8_max  = 4;
+    required UnpackedUint16 u16_min = 5;
+    required UnpackedUint16 u16_max = 6;
+    required UnpackedInt16  i16_min = 7;
+    required UnpackedInt16  i16_max = 8;
+}
+