reltimefloat(): allow negative result #10544

For "backwards" duration, reltimefloat() should return negative value
like its counterpart reltimestr().

ref bab24a88ab48
ref 06af88cd72ea
ref #10521
fix #10452

1 files changed, 10 insertions, 7 deletions

diff --git a/test/functional/eval/reltime_spec.lua b/test/functional/eval/reltime_spec.lua
index d78d858fb7..d87943e485 100644
--- a/test/functional/eval/reltime_spec.lua
+++ b/test/functional/eval/reltime_spec.lua
@@ -6,7 +6,7 @@ local reltime, reltimestr, reltimefloat = funcs.reltime, funcs.reltimestr, funcs
 describe('reltimestr(), reltimefloat()', function()
   before_each(clear)
 
-  it('Checks', function()
+  it('acceptance', function()
     local now = reltime()
     command('sleep 10m')
     local later = reltime()
@@ -31,20 +31,23 @@ describe('reltimestr(), reltimefloat()', function()
     -- original vim test for < 0.1, but easily fails on travis
     ok(nil ~= string.match(reltimestr(differs), "0%."))
     ok(reltimefloat(differs) < 1.0)
-
   end)
 
-  it('reltime() allows negative result #10452', function()
+  it('(start - end) returns negative #10452', function()
     local older_time = reltime()
     command('sleep 1m')
     local newer_time = reltime()
 
     -- Start/end swapped: should be something like -0.002123.
-    local rv = tonumber(reltimestr(reltime(newer_time, older_time)))
-    ok(rv < 0 and rv > -10)
+    local tm_s = tonumber(reltimestr(reltime(newer_time, older_time)))
+    local tm_f = reltimefloat(reltime(newer_time, older_time))
+    ok(tm_s < 0 and tm_s > -10)
+    ok(tm_f < 0 and tm_f > -10)
 
     -- Not swapped: should be something like 0.002123.
-    rv = tonumber(reltimestr(reltime(older_time, newer_time)))
-    ok(rv > 0 and rv < 10)
+    tm_s = tonumber(reltimestr(reltime(older_time, newer_time)))
+    tm_f = reltimefloat(reltime(older_time, newer_time))
+    ok(tm_s > 0 and tm_s < 10)
+    ok(tm_f > 0 and tm_f < 10)
   end)
 end)