2 files changed, 25 insertions, 0 deletions
diff --git a/pkg/compiler/testdata/all.txt b/pkg/compiler/testdata/all.txt
index a5a097de3..573fb6412 100644
--- a/pkg/compiler/testdata/all.txt
+++ b/pkg/compiler/testdata/all.txt
@@ -213,3 +213,16 @@ u0 [
 ]
 
 foo$u0(a ptr[in, u0])
+
+# fmt
+
+foo$fmt0(a ptr[in, fmt[dec, int32[1:10]]])
+foo$fmt1(a ptr[in, fmt[hex, flags[int_flags]]])
+foo$fmt2(a ptr[in, fmt[oct, len[b]]], b ptr[in, array[int8]])
+foo$fmt3(a ptr[in, fmt[dec, proc[10, 20]]])
+foo$fmt4(a ptr[in, fmt[dec, r0]])
+foo$fmt5(a ptr[in, struct$fmt0])
+
+struct$fmt0 {
+	f0	fmt[dec, int8]
+}
diff --git a/pkg/compiler/testdata/errors.txt b/pkg/compiler/testdata/errors.txt
index 750916a83..cbfebbfd7 100644
--- a/pkg/compiler/testdata/errors.txt
+++ b/pkg/compiler/testdata/errors.txt
@@ -318,3 +318,15 @@ foo$203(a type0[42])		### type type0 is not a template
 foo$204(a ptr[in, templ_struct0[42, int8]])
 foo$205(a ptr[in, templ_struct0[int8, int8]])
 foo$207(a ptr[in, templ_struct2[1]])
+
+# fmt
+
+foo$fmt0(a fmt)					### wrong number of arguments for type fmt, expect format, value
+foo$fmt1(a fmt[dec, int8])			### fmt can't be syscall argument
+foo$fmt2(a ptr[in, fmt[dec, ptr[in, int8]]])	### bad fmt value ptr, expect an integer
+foo$fmt3(a ptr[in, fmt[foo, int8]])		### unexpected value foo for format argument of fmt type, expect [dec hex oct]
+foo$fmt4(a ptr[in, fmt[dec, int8:3]])		### unexpected ':', only struct fields can be bitfields
+
+struct$fmt0 {
+	f0	fmt[dec, int8:3]		### unexpected ':', only struct fields can be bitfields
+}