diff --git a/.gitignore b/.gitignore
index 4cdc4dc..0f7b727 100644
--- a/.gitignore
+++ b/.gitignore
@@ -74,17 +74,7 @@
 
 # /skeletons/tests/
 /skeletons/tests/Makefile
-/skeletons/tests/check-OCTET_STRING
-/skeletons/tests/check-UTCTime
-/skeletons/tests/check-length
-/skeletons/tests/check-REAL
-/skeletons/tests/check-GeneralizedTime
-/skeletons/tests/check-UTF8String
-/skeletons/tests/check-PER
-/skeletons/tests/check-ber_tlv_tag
-/skeletons/tests/check-INTEGER
-/skeletons/tests/check-OIDs
-/skeletons/tests/check-XER
+/skeletons/tests/check-*
 
 # /tests/
 /tests/Makefile
diff --git a/skeletons/tests/Makefile.am b/skeletons/tests/Makefile.am
index fc53663..f58ef08 100644
--- a/skeletons/tests/Makefile.am
+++ b/skeletons/tests/Makefile.am
@@ -11,7 +11,8 @@
 	check-INTEGER		\
 	check-REAL		\
 	check-XER		\
-	check-PER
+	check-PER		\
+	check-PER-INTEGER
 
 AM_LDFLAGS = $(top_srcdir)/skeletons/libasn1cskeletons.la
 LDADD = -lm
diff --git a/skeletons/tests/Makefile.in b/skeletons/tests/Makefile.in
index 14bea02..483011e 100644
--- a/skeletons/tests/Makefile.in
+++ b/skeletons/tests/Makefile.in
@@ -37,7 +37,8 @@
 	check-OIDs$(EXEEXT) check-GeneralizedTime$(EXEEXT) \
 	check-OCTET_STRING$(EXEEXT) check-UTF8String$(EXEEXT) \
 	check-UTCTime$(EXEEXT) check-INTEGER$(EXEEXT) \
-	check-REAL$(EXEEXT) check-XER$(EXEEXT) check-PER$(EXEEXT)
+	check-REAL$(EXEEXT) check-XER$(EXEEXT) check-PER$(EXEEXT) \
+	check-PER-INTEGER$(EXEEXT)
 subdir = skeletons/tests
 DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
@@ -71,6 +72,10 @@
 check_PER_OBJECTS = check-PER.$(OBJEXT)
 check_PER_LDADD = $(LDADD)
 check_PER_DEPENDENCIES =
+check_PER_INTEGER_SOURCES = check-PER-INTEGER.c
+check_PER_INTEGER_OBJECTS = check-PER-INTEGER.$(OBJEXT)
+check_PER_INTEGER_LDADD = $(LDADD)
+check_PER_INTEGER_DEPENDENCIES =
 check_REAL_SOURCES = check-REAL.c
 check_REAL_OBJECTS = check-REAL.$(OBJEXT)
 check_REAL_LDADD = $(LDADD)
@@ -109,13 +114,14 @@
 	--mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
 	$(LDFLAGS) -o $@
 SOURCES = check-GeneralizedTime.c check-INTEGER.c check-OCTET_STRING.c \
-	check-OIDs.c check-PER.c check-REAL.c check-UTCTime.c \
-	check-UTF8String.c check-XER.c check-ber_tlv_tag.c \
-	check-length.c
-DIST_SOURCES = check-GeneralizedTime.c check-INTEGER.c \
-	check-OCTET_STRING.c check-OIDs.c check-PER.c check-REAL.c \
+	check-OIDs.c check-PER.c check-PER-INTEGER.c check-REAL.c \
 	check-UTCTime.c check-UTF8String.c check-XER.c \
 	check-ber_tlv_tag.c check-length.c
+DIST_SOURCES = check-GeneralizedTime.c check-INTEGER.c \
+	check-OCTET_STRING.c check-OIDs.c check-PER.c \
+	check-PER-INTEGER.c check-REAL.c check-UTCTime.c \
+	check-UTF8String.c check-XER.c check-ber_tlv_tag.c \
+	check-length.c
 ETAGS = etags
 CTAGS = ctags
 am__tty_colors = \
@@ -298,6 +304,9 @@
 check-PER$(EXEEXT): $(check_PER_OBJECTS) $(check_PER_DEPENDENCIES) 
 	@rm -f check-PER$(EXEEXT)
 	$(LINK) $(check_PER_OBJECTS) $(check_PER_LDADD) $(LIBS)
+check-PER-INTEGER$(EXEEXT): $(check_PER_INTEGER_OBJECTS) $(check_PER_INTEGER_DEPENDENCIES) 
+	@rm -f check-PER-INTEGER$(EXEEXT)
+	$(LINK) $(check_PER_INTEGER_OBJECTS) $(check_PER_INTEGER_LDADD) $(LIBS)
 check-REAL$(EXEEXT): $(check_REAL_OBJECTS) $(check_REAL_DEPENDENCIES) 
 	@rm -f check-REAL$(EXEEXT)
 	$(LINK) $(check_REAL_OBJECTS) $(check_REAL_LDADD) $(LIBS)
@@ -327,6 +336,7 @@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/check-INTEGER.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/check-OCTET_STRING.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/check-OIDs.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/check-PER-INTEGER.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/check-PER.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/check-REAL.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/check-UTCTime.Po@am__quote@
diff --git a/skeletons/tests/check-PER-INTEGER.c b/skeletons/tests/check-PER-INTEGER.c
new file mode 100644
index 0000000..b44974c
--- /dev/null
+++ b/skeletons/tests/check-PER-INTEGER.c
@@ -0,0 +1,163 @@
+#include <stdio.h>
+#include <assert.h>
+
+#define	EMIT_ASN_DEBUG	1
+#include <INTEGER.h>
+#include <INTEGER.c>
+#include <per_support.c>
+#include <per_support.h>
+
+static int FailOut(const void *data, size_t size, void *op_key) {
+	assert(!"UNREACHABLE");
+	return 0;
+}
+
+static void normalize(asn_per_outp_t *po) {
+	if(po->nboff >= 8) {
+		po->buffer += (po->nboff >> 3);
+		po->nbits  -= (po->nboff & ~0x07);
+		po->nboff  &= 0x07;
+	}
+}
+
+static void
+check_per_encode_constrained(int lineno, int unsigned_, long value, long lbound, unsigned long ubound, int bit_range) {
+	INTEGER_t st;
+	INTEGER_t *reconstructed_st = 0;
+	asn_INTEGER_specifics_t specs;
+	asn_per_constraints_t cts;
+	asn_enc_rval_t enc_rval;
+	asn_dec_rval_t dec_rval;
+	asn_per_outp_t po;
+	asn_per_data_t pd;
+	long reconstructed_value;
+
+	printf("%d: Recoding %s %ld [%ld..%lu]\n", lineno,
+		unsigned_ ? "unsigned" : "signed", value, lbound, ubound);
+
+	memset(&st, 0, sizeof(st));
+	memset(&po, 0, sizeof(po));
+	memset(&pd, 0, sizeof(pd));
+	memset(&cts, 0, sizeof(cts));
+	memset(&specs, 0, sizeof(specs));
+
+	cts.value.flags = APC_CONSTRAINED;
+	cts.value.range_bits = bit_range;
+	cts.value.effective_bits = bit_range;
+	cts.value.lower_bound = lbound;
+	cts.value.upper_bound = ubound;
+
+	asn_long2INTEGER(&st, value);
+
+	po.buffer = po.tmpspace;
+	po.nboff = 0;
+	po.nbits = 8 * sizeof(po.tmpspace);
+	po.outper = FailOut;
+
+	specs.field_width = sizeof(long);
+	specs.field_unsigned = unsigned_;
+
+	asn_DEF_INTEGER.specifics = &specs;
+	enc_rval = INTEGER_encode_uper(&asn_DEF_INTEGER, &cts, &st, &po);
+	assert(enc_rval.encoded == 0);
+
+	normalize(&po);
+
+	assert(po.buffer == &po.tmpspace[bit_range / 8]);
+	long recovered_value =
+		  ((uint32_t)po.tmpspace[0] << 24)
+		| ((uint32_t)po.tmpspace[1] << 16)
+		| ((uint32_t)po.tmpspace[2] << 8)
+		| ((uint32_t)po.tmpspace[3] << 0);
+	recovered_value >>= (32 - bit_range);
+	recovered_value += cts.value.lower_bound;
+	assert(recovered_value == value);
+	assert(po.nboff == ((bit_range == 32) ? 0 : (8 - (32 - bit_range))));
+	assert(po.nbits ==  8 * (sizeof(po.tmpspace) - (po.buffer-po.tmpspace)));
+	assert(po.flushed_bytes == 0);
+
+	pd.buffer = po.tmpspace;
+	pd.nboff = 0;
+	pd.nbits = 8 * (po.buffer - po.tmpspace) + po.nboff;
+	pd.moved = 0;
+	dec_rval = INTEGER_decode_uper(0, &asn_DEF_INTEGER, &cts,
+					(void **)&reconstructed_st, &pd);
+	reconstructed_value = 0;
+	asn_INTEGER2long(reconstructed_st, &reconstructed_value);
+	assert(reconstructed_value == value);
+}
+
+#define	CHECK(u, v, l, r, b)	\
+	check_per_encode_constrained(__LINE__, u, v, l, r, b)
+
+int
+main() {
+  int unsigned_;
+  for(unsigned_ = 0; unsigned_ < 2; unsigned_++) {
+	int u = unsigned_;
+
+	/* Encode a signed 0x8babab into a range constrained by 0..2^29-1 */
+	CHECK(u, 0x8babab, 0, 536870911UL, 29);
+	CHECK(u, 0x8babab, 0, 1073741823UL, 30);
+	CHECK(u, 0x8babab, 0, 2147483647UL, 31);
+	CHECK(u, 0x8babab, 0, 4294967295UL, 32);
+
+	CHECK(u, 0x8babab, 10, 536870901UL, 29);
+	CHECK(u, 0x8babab, 10, 1073741803UL, 30);
+	CHECK(u, 0x8babab, 10, 2147483607UL, 31);
+	CHECK(u, 0x8babab, 10, 4294967205UL, 32);
+
+	CHECK(0, 0x8babab, -10, 536870901UL, 29);
+	CHECK(0, 0x8babab, -10, 1073741803UL, 30);
+	CHECK(0, 0x8babab, -10, 2147483607UL, 31);
+	CHECK(0, 0x8babab, -10, 4294967205UL, 32);
+
+	CHECK(u, 11, 10, 536870901UL, 29);
+	CHECK(u, 11, 10, 1073741803UL, 30);
+	CHECK(u, 11, 10, 2147483607UL, 31);
+	CHECK(u, 11, 10, 4294967205UL, 32);
+
+	CHECK(0, 1, -10, 536870901UL, 29);
+	CHECK(0, 1, -10, 1073741803UL, 30);
+	CHECK(0, 1, -10, 2147483607UL, 31);
+	CHECK(0, 1, -10, 4294967205UL, 32);
+
+	CHECK(u, 10, 10, 536870901UL, 29);
+	CHECK(u, 10, 10, 1073741803UL, 30);
+	CHECK(u, 10, 10, 2147483607UL, 31);
+	CHECK(u, 10, 10, 4294967205UL, 32);
+
+	CHECK(0, 0, -10, 536870901UL, 29);
+	CHECK(0, 0, -10, 1073741803UL, 30);
+	CHECK(0, 0, -10, 2147483607UL, 31);
+	CHECK(0, 0, -10, 4294967205UL, 32);
+
+	CHECK(0, -1, -10, 536870901UL, 29);
+	CHECK(0, -1, -10, 1073741803UL, 30);
+	CHECK(0, -1, -10, 2147483607UL, 31);
+	CHECK(0, -1, -10, 4294967205UL, 32);
+
+	CHECK(0, -10, -10, 536870901UL, 29);
+	CHECK(0, -10, -10, 1073741803UL, 30);
+	CHECK(0, -10, -10, 2147483607UL, 31);
+	CHECK(0, -10, -10, 4294967205UL, 32);
+
+	CHECK(u, 536870901UL, 10, 536870901UL, 29);
+	CHECK(u, 1073741803UL, 10, 1073741803UL, 30);
+	CHECK(u, 2147483607UL, 10, 2147483607UL, 31);
+	CHECK(u, 4294967205UL, 10, 4294967205UL, 32);
+
+	CHECK(0, 536870901UL, -10, 536870901UL, 29);
+	CHECK(0, 1073741803UL, -10, 1073741803UL, 30);
+	CHECK(0, 2147483607UL, -10, 2147483607UL, 31);
+	CHECK(0, 4294967205UL, -10, 4294967205UL, 32);
+
+	CHECK(u, 2000000000, 0, 4294967295UL, 32);
+	CHECK(u, 2147483647, 0, 4294967295UL, 32);
+	CHECK(u, 2147483648, 0, 4294967295UL, 32);
+	CHECK(u, 4000000000, 0, 4294967295UL, 32);
+	CHECK(u, 4294967295UL, 1, 4294967295UL, 32);
+ }
+
+  return 0;
+}