From 495eb07a2d8aa7f19b775b4508466fecb1b3ce50 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Mon, 9 May 2022 11:07:06 +0200
Subject: [PATCH] fuzz-json: also do sorting and normalizing and other easy
 calls

(cherry picked from commit a2c5735dd80e19d2d525f9be322395530096cbe2)
Related: #2087652
---
 src/fuzz/fuzz-json.c | 75 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)

diff --git a/src/fuzz/fuzz-json.c b/src/fuzz/fuzz-json.c
index 648a6d441d..995a0265ba 100644
--- a/src/fuzz/fuzz-json.c
+++ b/src/fuzz/fuzz-json.c
@@ -32,5 +32,80 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
         json_variant_dump(v, 0, g ?: stdout, NULL);
         json_variant_dump(v, JSON_FORMAT_PRETTY|JSON_FORMAT_COLOR|JSON_FORMAT_SOURCE, g ?: stdout, NULL);
 
+        bool sorted = json_variant_is_sorted(v);
+        log_debug("json_variant_is_sorted: %s", yes_no(sorted));
+
+        r = json_variant_sort(&v);
+        log_debug_errno(r, "json_variant_sort: %d/%m", r);
+
+        sorted = json_variant_is_sorted(v);
+        log_debug("json_variant_is_sorted: %s", yes_no(sorted));
+        assert_se(r < 0 || sorted);
+
+        bool normalized = json_variant_is_normalized(v);
+        log_debug("json_variant_is_normalized: %s", yes_no(normalized));
+
+        r = json_variant_normalize(&v);
+        log_debug_errno(r, "json_variant_normalize: %d/%m", r);
+
+        normalized = json_variant_is_normalized(v);
+        log_debug("json_variant_is_normalized: %s", yes_no(normalized));
+        assert_se(r < 0 || normalized);
+
+        double real = json_variant_real(v);
+        log_debug("json_variant_real: %lf", real);
+
+        bool negative = json_variant_is_negative(v);
+        log_debug("json_variant_is_negative: %s", yes_no(negative));
+
+        bool blank = json_variant_is_blank_object(v);
+        log_debug("json_variant_is_blank_object: %s", yes_no(blank));
+
+        blank = json_variant_is_blank_array(v);
+        log_debug("json_variant_is_blank_array: %s", yes_no(blank));
+
+        size_t elements = json_variant_elements(v);
+        log_debug("json_variant_elements: %zu", elements);
+
+        for (size_t i = 0; i <= elements + 2; i++)
+                (void) json_variant_by_index(v, i);
+
+        assert_se(json_variant_equal(v, v));
+        assert_se(!json_variant_equal(v, NULL));
+        assert_se(!json_variant_equal(NULL, v));
+
+        bool sensitive = json_variant_is_sensitive(v);
+        log_debug("json_variant_is_sensitive: %s", yes_no(sensitive));
+
+        json_variant_sensitive(v);
+
+        sensitive = json_variant_is_sensitive(v);
+        log_debug("json_variant_is_sensitive: %s", yes_no(sensitive));
+
+        const char *source;
+        unsigned line, column;
+        assert_se(json_variant_get_source(v, &source, &line, &column) == 0);
+        log_debug("json_variant_get_source: %s:%u:%u", source ?: "-", line, column);
+
+        r = json_variant_set_field_string(&v, "a", "string-a");
+        log_debug_errno(r, "json_set_field_string: %d/%m", r);
+
+        r = json_variant_set_field_integer(&v, "b", -12345);
+        log_debug_errno(r, "json_set_field_integer: %d/%m", r);
+
+        r = json_variant_set_field_unsigned(&v, "c", 12345);
+        log_debug_errno(r, "json_set_field_unsigned: %d/%m", r);
+
+        r = json_variant_set_field_boolean(&v, "d", false);
+        log_debug_errno(r, "json_set_field_boolean: %d/%m", r);
+
+        r = json_variant_set_field_strv(&v, "e", STRV_MAKE("e-1", "e-2", "e-3"));
+        log_debug_errno(r, "json_set_field_strv: %d/%m", r);
+
+        r = json_variant_filter(&v, STRV_MAKE("a", "b", "c", "d", "e"));
+        log_debug_errno(r, "json_variant_filter: %d/%m", r);
+
+        // TODO: json_variant_merge(&v, …);
+        // TODO: json_variant_append_array(&v, …);
         return 0;
 }