diff --git a/tests/baseline_allow_no_value.txt b/tests/baseline_allow_no_value.txt
index c26aa93..f84771d 100644
--- a/tests/baseline_allow_no_value.txt
+++ b/tests/baseline_allow_no_value.txt
@@ -69,3 +69,6 @@ duplicate_sections.ini: e=0 user=108
 ... [section1]
 ... key1=val1;
 no_value.ini: e=0 user=109
+... [_123456789_123456789_123456789_123456789_12345678]
+... name=value;
+long_section.ini: e=0 user=110
diff --git a/tests/baseline_call_handler_on_new_section.txt b/tests/baseline_call_handler_on_new_section.txt
index d8c639b..133737b 100644
--- a/tests/baseline_call_handler_on_new_section.txt
+++ b/tests/baseline_call_handler_on_new_section.txt
@@ -67,3 +67,6 @@ duplicate_sections.ini: e=0 user=108
 ... [section1]
 ... key1=val1;
 no_value.ini: e=2 user=109
+... [_123456789_123456789_123456789_123456789_12345678]
+... name=value;
+long_section.ini: e=0 user=110
diff --git a/tests/baseline_disallow_inline_comments.txt b/tests/baseline_disallow_inline_comments.txt
index bb63721..df1dc3f 100644
--- a/tests/baseline_disallow_inline_comments.txt
+++ b/tests/baseline_disallow_inline_comments.txt
@@ -65,3 +65,6 @@ duplicate_sections.ini: e=0 user=108
 ... [section1]
 ... key1=val1;
 no_value.ini: e=2 user=109
+... [_123456789_123456789_123456789_123456789_12345678]
+... name=value;
+long_section.ini: e=0 user=110
diff --git a/tests/baseline_handler_lineno.txt b/tests/baseline_handler_lineno.txt
index 40a3934..5903d79 100644
--- a/tests/baseline_handler_lineno.txt
+++ b/tests/baseline_handler_lineno.txt
@@ -64,3 +64,6 @@ duplicate_sections.ini: e=0 user=108
 ... [section1]
 ... key1=val1;  line 9
 no_value.ini: e=2 user=109
+... [_123456789_123456789_123456789_123456789_12345678]
+... name=value;  line 3
+long_section.ini: e=0 user=110
diff --git a/tests/baseline_heap.txt b/tests/baseline_heap.txt
index 04ec0ae..76f205a 100644
--- a/tests/baseline_heap.txt
+++ b/tests/baseline_heap.txt
@@ -64,3 +64,6 @@ duplicate_sections.ini: e=0 user=108
 ... [section1]
 ... key1=val1;
 no_value.ini: e=2 user=109
+... [_123456789_123456789_123456789_123456789_12345678]
+... name=value;
+long_section.ini: e=0 user=110
diff --git a/tests/baseline_heap_max_line.txt b/tests/baseline_heap_max_line.txt
index 24ee5af..265c8a6 100644
--- a/tests/baseline_heap_max_line.txt
+++ b/tests/baseline_heap_max_line.txt
@@ -68,3 +68,5 @@ duplicate_sections.ini: e=0 user=108
 ... [section1]
 ... key1=val1;
 no_value.ini: e=2 user=109
+... name=value;
+long_section.ini: e=2 user=110
diff --git a/tests/baseline_heap_realloc.txt b/tests/baseline_heap_realloc.txt
index 04ec0ae..76f205a 100644
--- a/tests/baseline_heap_realloc.txt
+++ b/tests/baseline_heap_realloc.txt
@@ -64,3 +64,6 @@ duplicate_sections.ini: e=0 user=108
 ... [section1]
 ... key1=val1;
 no_value.ini: e=2 user=109
+... [_123456789_123456789_123456789_123456789_12345678]
+... name=value;
+long_section.ini: e=0 user=110
diff --git a/tests/baseline_heap_realloc_max_line.txt b/tests/baseline_heap_realloc_max_line.txt
index 24ee5af..265c8a6 100644
--- a/tests/baseline_heap_realloc_max_line.txt
+++ b/tests/baseline_heap_realloc_max_line.txt
@@ -68,3 +68,5 @@ duplicate_sections.ini: e=0 user=108
 ... [section1]
 ... key1=val1;
 no_value.ini: e=2 user=109
+... name=value;
+long_section.ini: e=2 user=110
diff --git a/tests/baseline_multi.txt b/tests/baseline_multi.txt
index 04ec0ae..76f205a 100644
--- a/tests/baseline_multi.txt
+++ b/tests/baseline_multi.txt
@@ -64,3 +64,6 @@ duplicate_sections.ini: e=0 user=108
 ... [section1]
 ... key1=val1;
 no_value.ini: e=2 user=109
+... [_123456789_123456789_123456789_123456789_12345678]
+... name=value;
+long_section.ini: e=0 user=110
diff --git a/tests/baseline_multi_max_line.txt b/tests/baseline_multi_max_line.txt
index 24ee5af..265c8a6 100644
--- a/tests/baseline_multi_max_line.txt
+++ b/tests/baseline_multi_max_line.txt
@@ -68,3 +68,5 @@ duplicate_sections.ini: e=0 user=108
 ... [section1]
 ... key1=val1;
 no_value.ini: e=2 user=109
+... name=value;
+long_section.ini: e=2 user=110
diff --git a/tests/baseline_single.txt b/tests/baseline_single.txt
index 8123f95..d8e3e37 100644
--- a/tests/baseline_single.txt
+++ b/tests/baseline_single.txt
@@ -59,3 +59,6 @@ duplicate_sections.ini: e=0 user=108
 ... [section1]
 ... key1=val1;
 no_value.ini: e=2 user=109
+... [_123456789_123456789_123456789_123456789_12345678]
+... name=value;
+long_section.ini: e=0 user=110
diff --git a/tests/baseline_stop_on_first_error.txt b/tests/baseline_stop_on_first_error.txt
index aa91014..ecefd2b 100644
--- a/tests/baseline_stop_on_first_error.txt
+++ b/tests/baseline_stop_on_first_error.txt
@@ -58,3 +58,6 @@ bom.ini: e=0 user=107
 ... single2=qrs;
 duplicate_sections.ini: e=0 user=108
 no_value.ini: e=2 user=108
+... [_123456789_123456789_123456789_123456789_12345678]
+... name=value;
+long_section.ini: e=0 user=110
diff --git a/tests/long_section.ini b/tests/long_section.ini
new file mode 100644
index 0000000..ca6d63e
--- /dev/null
+++ b/tests/long_section.ini
@@ -0,0 +1,3 @@
+# check that section is truncated
+[_123456789_123456789_123456789_123456789_123456789_123456789]
+name = value
diff --git a/tests/unittest.c b/tests/unittest.c
index fde8e61..8ac6e27 100644
--- a/tests/unittest.c
+++ b/tests/unittest.c
@@ -72,5 +72,6 @@ int main(void)
     parse("bom.ini");
     parse("duplicate_sections.ini");
     parse("no_value.ini");
+    parse("long_section.ini");
     return 0;
 }