<s>
NUnit	B-Application
is	O
an	O
open-source	B-Application
unit	O
testing	O
framework	B-Architecture
for	O
the	O
.NET	B-Application
Framework	I-Application
and	O
Mono	B-Application
.	O
</s>
<s>
It	O
serves	O
the	O
same	O
purpose	O
as	O
JUnit	B-Language
does	O
in	O
the	O
Java	B-Language
world	O
,	O
and	O
is	O
one	O
of	O
many	O
programs	O
in	O
the	O
xUnit	B-Library
family	O
.	O
</s>
<s>
Supports	O
multiple	O
platforms	O
including	O
.NET	B-Application
Core	I-Application
,	O
Xamarin	B-Application
Mobile	I-Application
,	O
Compact	B-Operating_System
Framework	I-Operating_System
and	O
Silverlight	B-Application
.	O
</s>
<s>
NUnit	B-Application
provides	O
a	O
console	O
runner	O
(	O
nunit3-console.exe	O
)	O
,	O
which	O
is	O
used	O
for	O
batch	O
execution	O
of	O
tests	O
.	O
</s>
<s>
The	O
console	O
runner	O
works	O
through	O
the	O
NUnit	B-Application
Test	O
Engine	O
,	O
which	O
provides	O
it	O
with	O
the	O
ability	O
to	O
load	O
,	O
explore	O
and	O
execute	O
tests	O
.	O
</s>
<s>
When	O
tests	O
are	O
to	O
be	O
run	O
in	O
a	O
separate	O
process	O
,	O
the	O
engine	O
makes	O
use	O
of	O
the	O
nunit-agent	O
program	O
to	O
run	O
them	O
.	O
</s>
<s>
NUnit	B-Application
provides	O
a	O
rich	O
set	O
of	O
assertions	O
as	O
static	O
methods	O
of	O
the	O
Assert	O
class	O
.	O
</s>
<s>
Nunit	B-Application
3.x	O
is	O
supporting	O
multiple	O
assertions	O
.	O
</s>
<s>
Before	O
NUnit	B-Application
2.4	O
,	O
a	O
separate	O
method	O
of	O
the	O
Assert	O
class	O
was	O
used	O
for	O
each	O
different	O
assertion	O
.	O
</s>
<s>
It	O
continues	O
to	O
be	O
supported	O
in	O
NUnit	B-Application
,	O
since	O
many	O
people	O
prefer	O
it	O
.	O
</s>
<s>
Beginning	O
with	O
NUnit	B-Application
2.4	O
,	O
a	O
new	O
Constraint-based	O
model	O
was	O
introduced	O
.	O
</s>
<s>
This	O
constraint-based	O
model	O
is	O
now	O
used	O
internally	O
by	O
NUnit	B-Application
for	O
all	O
assertions	O
.	O
</s>
<s>
Example	O
of	O
an	O
NUnit	B-Application
test	O
fixture	O
:	O
</s>
<s>
The	O
NUnit	B-Application
framework	B-Architecture
discovers	O
the	O
method	O
ExampleTestOfNUnit.TestMultiplication( )	O
automatically	O
by	O
reflection	B-Language
.	O
</s>
<s>
FireBenchmarks	O
is	O
an	O
addin	B-Application
able	O
to	O
record	O
execution	O
time	O
of	O
unit	O
tests	O
and	O
generate	O
XML	B-Protocol
,	O
CSV	O
,	O
XHTML	B-Language
performances	O
reports	O
with	O
charts	O
and	O
history	O
tracking	O
.	O
</s>
<s>
Its	O
main	O
purpose	O
is	O
to	O
enable	O
a	O
developer	O
or	O
a	O
team	O
that	O
work	O
with	O
an	O
agile	O
methodology	O
to	O
integrate	O
performance	O
metrics	O
and	O
analysis	O
into	O
the	O
unit	O
testing	O
environment	O
,	O
to	O
easily	O
control	O
and	O
monitor	O
the	O
evolution	O
of	O
a	O
software	O
system	O
in	O
terms	O
of	O
algorithmic	B-General_Concept
complexity	I-General_Concept
and	O
system	O
resources	O
load	O
.	O
</s>
<s>
NUnit.Forms	B-Application
is	O
an	O
expansion	O
to	O
the	O
core	O
NUnit	B-Application
framework	B-Architecture
and	O
is	O
also	O
open	O
source	O
.	O
</s>
<s>
It	O
specifically	O
looks	O
at	O
expanding	O
NUnit	B-Application
to	O
be	O
able	O
to	O
handle	O
testing	O
user	O
interface	O
elements	O
in	O
Windows	B-Application
Forms	I-Application
.	O
</s>
<s>
As	O
of	O
January	O
2013	O
,	O
Nunit.Forms	B-Application
is	O
in	O
Alpha	O
release	O
,	O
and	O
no	O
versions	O
have	O
been	O
released	O
since	O
May	O
2006	O
.	O
</s>
<s>
NUnit.ASP	O
is	O
a	O
discontinued	O
expansion	O
to	O
the	O
core	O
NUnit	B-Application
framework	B-Architecture
and	O
is	O
also	O
open	O
source	O
.	O
</s>
<s>
It	O
specifically	O
looks	O
at	O
expanding	O
NUnit	B-Application
to	O
be	O
able	O
to	O
handle	O
testing	O
user	O
interface	O
elements	O
in	O
ASP.Net	O
.	O
</s>
