Fix regression in generating message size defines (issue #172).

This bug was triggered when:
1. A .proto file included another .proto from a different directory.
2. The another .proto has an associated .options file.

Added regression test for the same.

5 files changed, 36 insertions, 0 deletions

diff --git a/tests/regression/issue_172/SConscript b/tests/regression/issue_172/SConscript
new file mode 100644
index 00000000..49c919e8
--- /dev/null
+++ b/tests/regression/issue_172/SConscript
@@ -0,0 +1,16 @@
+# Verify that _size define is generated for messages that have
+# includes from another directory.
+
+Import('env')
+
+incpath = env.Clone()
+incpath.Append(PROTOCPATH="#regression/issue_172/submessage")
+incpath.Append(CPPPATH="$BUILD/regression/issue_172/submessage")
+incpath.NanopbProto('test')
+incpath.NanopbProto(['submessage/submessage', 'submessage/submessage.options'])
+
+p = incpath.Program(["msg_size.c",
+                     "test.pb.c",
+                     "submessage/submessage.pb.c"])
+
+
diff --git a/tests/regression/issue_172/msg_size.c b/tests/regression/issue_172/msg_size.c
new file mode 100644
index 00000000..be45acb4
--- /dev/null
+++ b/tests/regression/issue_172/msg_size.c
@@ -0,0 +1,9 @@
+#include "test.pb.h"
+
+PB_STATIC_ASSERT(testmessage_size >= 1+1+1+1+16, TESTMESSAGE_SIZE_IS_WRONG)
+
+int main()
+{
+    return 0;
+}
+
diff --git a/tests/regression/issue_172/submessage/submessage.options b/tests/regression/issue_172/submessage/submessage.options
new file mode 100644
index 00000000..12fb1984
--- /dev/null
+++ b/tests/regression/issue_172/submessage/submessage.options
@@ -0,0 +1 @@
+submessage.data max_size: 16
diff --git a/tests/regression/issue_172/submessage/submessage.proto b/tests/regression/issue_172/submessage/submessage.proto
new file mode 100644
index 00000000..ce6804af
--- /dev/null
+++ b/tests/regression/issue_172/submessage/submessage.proto
@@ -0,0 +1,4 @@
+syntax = "proto2";
+message submessage {
+    required bytes data = 1;
+}
diff --git a/tests/regression/issue_172/test.proto b/tests/regression/issue_172/test.proto
new file mode 100644
index 00000000..fbd97be5
--- /dev/null
+++ b/tests/regression/issue_172/test.proto
@@ -0,0 +1,6 @@
+syntax = "proto2";
+import "submessage.proto";
+
+message testmessage {
+ optional submessage sub = 1;
+}