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[PATCH 07/10] test-string-output-visitor: Cover "unround" number


From: Markus Armbruster
Subject: [PATCH 07/10] test-string-output-visitor: Cover "unround" number
Date: Thu, 10 Dec 2020 17:14:49 +0100

This demonstrates rounding error due to insufficient precision: double
3.1415926535897932 gets converted to JSON 3.141593.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 tests/test-string-output-visitor.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/test-string-output-visitor.c 
b/tests/test-string-output-visitor.c
index 9f6581439a..cec20848ea 100644
--- a/tests/test-string-output-visitor.c
+++ b/tests/test-string-output-visitor.c
@@ -130,13 +130,13 @@ static void test_visitor_out_bool(TestOutputVisitorData 
*data,
 static void test_visitor_out_number(TestOutputVisitorData *data,
                                     const void *unused)
 {
-    double value = 3.14;
+    double value = 3.1415926535897932;
     char *str;
 
     visit_type_number(data->ov, NULL, &value, &error_abort);
 
     str = visitor_get(data);
-    g_assert_cmpstr(str, ==, "3.140000");
+    g_assert_cmpstr(str, ==, "3.141593");
 }
 
 static void test_visitor_out_string(TestOutputVisitorData *data,
-- 
2.26.2




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