[dpdk-dev,v5,5/5] test/cfgfile: add new unit test

diff --git a/test/test/test_cfgfile.c b/test/test/test_cfgfile.c
index 4cc9b14..25e8539 100644
--- a/test/test/test_cfgfile.c
+++ b/test/test/test_cfgfile.c
@@ -111,6 +111,7 @@  _test_cfgfile_sample(struct rte_cfgfile *cfgfile)
 	return 0;
 }
 
+
 static int
 test_cfgfile_sample1(void)
 {
@@ -154,6 +155,43 @@  test_cfgfile_sample2(void)
 }
 
 static int
+test_cfgfile_realloc_sections(void)
+{
+	struct rte_cfgfile *cfgfile;
+	int ret;
+	const char *value;
+
+	cfgfile = rte_cfgfile_load(CFG_FILES_ETC "/realloc_sections.ini", 0);
+	TEST_ASSERT_NOT_NULL(cfgfile, "Failed to load config file");
+
+	ret = rte_cfgfile_num_sections(cfgfile, NULL, 0);
+	TEST_ASSERT(ret == 9, "Unexpected number of sections: %d", ret);
+
+	ret = rte_cfgfile_has_section(cfgfile, "section9");
+	TEST_ASSERT(ret, "section9 missing");
+
+	ret = rte_cfgfile_section_num_entries(cfgfile, "section3");
+	TEST_ASSERT(ret == 21,
+			"section3 unexpected number of entries: %d", ret);
+
+	ret = rte_cfgfile_section_num_entries(cfgfile, "section9");
+	TEST_ASSERT(ret == 8, "section9 unexpected number of entries: %d", ret);
+
+	value = rte_cfgfile_get_entry(cfgfile, "section9", "key8");
+	TEST_ASSERT(strcmp("value8_section9", value) == 0,
+		    "key unexpected value: %s", value);
+
+	ret = rte_cfgfile_save(cfgfile, "/tmp/cfgfile_save.ini");
+	TEST_ASSERT_SUCCESS(ret, "Failed to save *.ini file");
+	remove("/tmp/cfgfile_save.ini");
+
+	ret = rte_cfgfile_close(cfgfile);
+	TEST_ASSERT_SUCCESS(ret, "Failed to close cfgfile");
+
+	return 0;
+}
+
+static int
 test_cfgfile_invalid_section_header(void)
 {
 	struct rte_cfgfile *cfgfile;
@@ -292,6 +330,9 @@  test_cfgfile(void)
 	if (test_cfgfile_sample2())
 		return -1;
 
+	if (test_cfgfile_realloc_sections())
+		return -1;
+
 	if (test_cfgfile_invalid_section_header())
 		return -1;
 
diff --git a/test/test/test_cfgfiles/etc/realloc_sections.ini b/test/test/test_cfgfiles/etc/realloc_sections.ini
new file mode 100644
index 0000000..e653e40
--- /dev/null
+++ b/test/test/test_cfgfiles/etc/realloc_sections.ini
@@ -0,0 +1,128 @@ 
+[section1]
+key1=value1_section1
+key2=value2_section1
+key3=value3_section1
+key4=value4_section1
+key5=value5_section1
+key6=value6_section1
+key7=value7_section1
+key8=value8_section1
+key9=value9_section1
+key10=value10_section1
+key11=value11_section1
+key12=value12_section1
+key13=value13_section1
+key14=value14_section1
+key15=value15_section1
+key16=value16_section1
+key17=value17_section1
+key18=value18_section1
+key19=value19_section1
+key20=value20_section1
+key21=value21_section1
+
+[section2]
+key1=value1_section2
+key2=value2_section2
+key3=value3_section2
+key4=value4_section2
+key5=value5_section2
+key6=value6_section2
+key7=value7_section2
+key8=value8_section2
+key9=value9_section2
+key10=value10_section2
+key11=value11_section2
+key12=value12_section2
+key13=value13_section2
+key14=value14_section2
+key15=value15_section2
+key16=value16_section2
+key17=value17_section2
+key18=value18_section2
+key19=value19_section2
+key20=value20_section2
+key21=value21_section2
+
+[section3]
+key1=value1_section3
+key2=value2_section3
+key3=value3_section3
+key4=value4_section3
+key5=value5_section3
+key6=value6_section3
+key7=value7_section3
+key8=value8_section3
+key9=value9_section3
+key10=value10_section3
+key11=value11_section3
+key12=value12_section3
+key13=value13_section3
+key14=value14_section3
+key15=value15_section3
+key16=value16_section3
+key17=value17_section3
+key18=value18_section3
+key19=value19_section3
+key20=value20_section3
+key21=value21_section3
+
+[section4]
+key1=value1_section4
+key2=value2_section4
+key3=value3_section4
+key4=value4_section4
+key5=value5_section4
+key6=value6_section4
+key7=value7_section4
+key8=value8_section4
+
+[section5]
+key1=value1_section5
+key2=value2_section5
+key3=value3_section5
+key4=value4_section5
+key5=value5_section5
+key6=value6_section5
+key7=value7_section5
+key8=value8_section5
+
+[section6]
+key1=value1_section6
+key2=value2_section6
+key3=value3_section6
+key4=value4_section6
+key5=value5_section6
+key6=value6_section6
+key7=value7_section6
+key8=value8_section6
+
+[section7]
+key1=value1_section7
+key2=value2_section7
+key3=value3_section7
+key4=value4_section7
+key5=value5_section7
+key6=value6_section7
+key7=value7_section7
+key8=value8_section7
+
+[section8]
+key1=value1_section8
+key2=value2_section8
+key3=value3_section8
+key4=value4_section8
+key5=value5_section8
+key6=value6_section8
+key7=value7_section8
+key8=value8_section8
+
+[section9]
+key1=value1_section9
+key2=value2_section9
+key3=value3_section9
+key4=value4_section9
+key5=value5_section9
+key6=value6_section9
+key7=value7_section9
+key8=value8_section9