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2026-09-13 22:18:11 +01:00
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+/*
+ * Copyright (c) 2009-2016 Petri Lehtinen <[email protected]>
+ *
+ * Jansson is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ */
+
+#include "util.h"
+#include <jansson.h>
+#include <math.h>
+
+#ifdef INFINITY
+// This test triggers "warning C4756: overflow in constant arithmetic"
+// in Visual Studio. This warning is triggered here by design, so disable it.
+// (This can only be done on function level so we keep these tests separate)
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable : 4756)
+#endif
+static void test_inifity() {
+    json_t *real = json_real(INFINITY);
+    if (real != NULL)
+        fail("could construct a real from Inf");
+
+    real = json_real(1.0);
+    if (json_real_set(real, INFINITY) != -1)
+        fail("could set a real to Inf");
+
+    if (json_real_value(real) != 1.0)
+        fail("real value changed unexpectedly");
+
+    json_decref(real);
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+}
+#endif // INFINITY
+
+static void test_bad_args(void) {
+    json_t *txt = json_string("test");
+
+    if (json_integer_value(NULL) != 0)
+        fail("json_integer_value did not return 0 for non-integer");
+    if (json_integer_value(txt) != 0)
+        fail("json_integer_value did not return 0 for non-integer");
+
+    if (!json_integer_set(NULL, 0))
+        fail("json_integer_set did not return error for non-integer");
+    if (!json_integer_set(txt, 0))
+        fail("json_integer_set did not return error for non-integer");
+
+    if (json_real_value(NULL) != 0.0)
+        fail("json_real_value did not return 0.0 for non-real");
+    if (json_real_value(txt) != 0.0)
+        fail("json_real_value did not return 0.0 for non-real");
+
+    if (!json_real_set(NULL, 0.0))
+        fail("json_real_set did not return error for non-real");
+    if (!json_real_set(txt, 0.0))
+        fail("json_real_set did not return error for non-real");
+
+    if (json_number_value(NULL) != 0.0)
+        fail("json_number_value did not return 0.0 for non-numeric");
+    if (json_number_value(txt) != 0.0)
+        fail("json_number_value did not return 0.0 for non-numeric");
+
+    if (txt->refcount != 1)
+        fail("unexpected reference count for txt");
+
+    json_decref(txt);
+}
+
+static void run_tests() {
+    json_t *integer, *real;
+    json_int_t i;
+    double d;
+
+    integer = json_integer(5);
+    real = json_real(100.1);
+
+    if (!integer)
+        fail("unable to create integer");
+    if (!real)
+        fail("unable to create real");
+
+    i = json_integer_value(integer);
+    if (i != 5)
+        fail("wrong integer value");
+
+    d = json_real_value(real);
+    if (d != 100.1)
+        fail("wrong real value");
+
+    d = json_number_value(integer);
+    if (d != 5.0)
+        fail("wrong number value");
+    d = json_number_value(real);
+    if (d != 100.1)
+        fail("wrong number value");
+
+    json_decref(integer);
+    json_decref(real);
+
+#ifdef NAN
+    real = json_real(NAN);
+    if (real != NULL)
+        fail("could construct a real from NaN");
+
+    real = json_real(1.0);
+    if (json_real_set(real, NAN) != -1)
+        fail("could set a real to NaN");
+
+    if (json_real_value(real) != 1.0)
+        fail("real value changed unexpectedly");
+
+    json_decref(real);
+#endif
+
+#ifdef INFINITY
+    test_inifity();
+#endif
+    test_bad_args();
+}