Re: Contribution idea: assertions that directly support Java 8's Optional

"Mark Silvis [email protected] [junit]" <[email protected]> Mon, 5 Oct 2015 00:59:01 -0400
Newsgroups gmane.comp.java.junit.user
Message-ID <[email protected]>
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Kevin,

I can understand you not wanting to require JDK 8. If I am not mistaken, yo=
u can support Java 8 classes but keep compatibility with Java 6 if you use =
JDK 8 to compile the code with JDK 6 as the target. This is from Oliver Gie=
rke=E2=80=99s comment in Stefan=E2=80=99s link here https://github.com/hamc=
rest/JavaHamcrest/issues/82#issuecomment-101392293 <https://github.com/hamc=
rest/JavaHamcrest/issues/82#issuecomment-101392293>.

Best,
Mark


> On Oct 4, 2015, at 7:04 PM, Kevin Cooney =E2=98=95 [email protected] [jun=
it] <[email protected]> wrote:
>=20
>=20
> JUnit depends on JDK5. The next major version will likely require JDK6. W=
e don't want to require JDK8.
>=20
> Have you looked at Truth?
>=20
> On Oct 4, 2015 11:39 AM, "Mark Silvis [email protected] <mailto:masilv=
[email protected]> [junit]" <[email protected] <mailto:[email protected]=
om>> wrote:
>=20=20
> I would like to contribute to JUnit, and I think I have a good idea for a=
 feature. I=E2=80=99ve found that it would be nice to have assertions that =
explicitly supported Java 8=E2=80=99s Optional class. I=E2=80=99m thinking =
something along the lines of assertEmpty() and assertPresent(). Would such =
an addition be welcomed?
>=20
> Thanks,
> Mark
>=20
>=20
>=20


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Kevin,<div class=3D""><br class=3D""></div><div class=3D"">I can understand=
 you not wanting to require JDK 8. If I am not mistaken, you can support Ja=
va 8 classes but keep compatibility with Java 6 if you use JDK 8 to compile=
 the code with JDK 6 as the target. This is from Oliver Gierke=E2=80=99s co=
mment in Stefan=E2=80=99s link here&nbsp;<a href=3D"https://github.com/hamc=
rest/JavaHamcrest/issues/82#issuecomment-101392293" class=3D"">https://gith=
ub.com/hamcrest/JavaHamcrest/issues/82#issuecomment-101392293</a>.</div><di=
v class=3D""><br class=3D""></div><div class=3D"">Best,</div><div class=3D"=
">Mark</div><div class=3D""><br class=3D""></div><div class=3D""><br class=
=3D""><div><blockquote type=3D"cite" class=3D""><div class=3D"">On Oct 4, 2=
015, at 7:04 PM, Kevin Cooney =E2=98=95 <a href=3D"mailto:[email protected]=
" class=3D"">[email protected]</a> [junit] &lt;<a href=3D"mailto:junit@yaho=
ogroups.com" class=3D"">[email protected]</a>&gt; wrote:</div><br class=
=3D"Apple-interchange-newline"><div class=3D""><div id=3D"ygrp-mlmsg" style=
=3D"font-size: 13px; font-family: Arial, helvetica, clean, sans-serif; font=
-style: normal; font-variant: normal; font-weight: normal; letter-spacing: =
normal; orphans: auto; text-align: start; text-indent: 0px; text-transform:=
 none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-s=
troke-width: 0px; background-color: rgb(255, 255, 255); position: relative;=
" class=3D""><div id=3D"ygrp-msg" style=3D"line-height: 1.22em; z-index: 1;=
" class=3D""><div id=3D"ygrp-text" style=3D"line-height: 1.22em; font-famil=
y: Georgia;" class=3D""><div style=3D"line-height: 1.22em; margin: 0px 0px =
1em;" class=3D""><br class=3D"webkit-block-placeholder"></div><p dir=3D"ltr=
" style=3D"line-height: 1.22em; margin: 0px 0px 1em;" class=3D"">JUnit depe=
nds on JDK5. The next major version will likely require JDK6. We don't want=
 to require JDK8.</p><p dir=3D"ltr" style=3D"line-height: 1.22em; margin: 0=
px 0px 1em;" class=3D"">Have you looked at Truth?</p><div class=3D"gmail_qu=
ote" style=3D"line-height: 1.22em;">On Oct 4, 2015 11:39 AM, "Mark Silvis<s=
pan class=3D"Apple-converted-space">&nbsp;</span><a href=3D"mailto:masilvis=
[email protected]" style=3D"line-height: 1.22em;" class=3D"">[email protected]=
m</a><span class=3D"Apple-converted-space">&nbsp;</span>[junit]" &lt;<a hre=
f=3D"mailto:[email protected]" style=3D"line-height: 1.22em;" class=3D"=
">[email protected]</a>&gt; wrote:<br type=3D"attribution" style=3D"lin=
e-height: 1.22em;" class=3D""><blockquote class=3D"gmail_quote" style=3D"ma=
rgin: 0px 0px 0px 4px; line-height: 1.22em; border-left-width: 1px; border-=
left-color: rgb(204, 204, 204); border-left-style: solid;"><u style=3D"line=
-height: 1.22em;" class=3D""></u><div style=3D"line-height: 1.22em; backgro=
und-color: rgb(255, 255, 255);" class=3D""><span style=3D"line-height: 1.22=
em;" class=3D"">&nbsp;</span><div style=3D"line-height: 1.22em;" class=3D""=
><div style=3D"line-height: 1.22em;" class=3D""><div style=3D"line-height: =
1.22em;" class=3D""><p style=3D"line-height: 1.22em; margin: 0px 0px 1em;" =
class=3D"">I would like to contribute to JUnit, and I think I have a good i=
dea for a feature. I=E2=80=99ve found that it would be nice to have asserti=
ons that explicitly supported Java 8=E2=80=99s Optional class. I=E2=80=99m =
thinking something along the lines of assertEmpty() and assertPresent(). Wo=
uld such an addition be welcomed?<br style=3D"line-height: 1.22em;" class=
=3D""><br style=3D"line-height: 1.22em;" class=3D"">Thanks,<br style=3D"lin=
e-height: 1.22em;" class=3D"">Mark<br style=3D"line-height: 1.22em;" class=
=3D""></p></div><div style=3D"line-height: 1.22em; color: rgb(255, 255, 255=
); min-height: 0px;" class=3D""></div></div></div></div></blockquote></div>=
<div style=3D"line-height: 1.22em; margin: 0px 0px 1em;" class=3D""><br cla=
ss=3D"webkit-block-placeholder"></div></div><div style=3D"line-height: 1.22=
em; color: rgb(255, 255, 255); height: 0px;" class=3D""></div></div></block=
quote></div><br class=3D""></div>



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