Java Reference
In-Depth Information
A JavaScript
script
element defines the test functions for our factorial
D
and regular
expression
E
tests. As with
JU
nit 3, we define test functions with the function name
prefix
test
. The set of JsUnit
assert
functions is smaller than the set of
JU
nit
assert
methods and is listed here. Like
JU
nit, the
API
defines a version of
assert
functions
with and without a message argument. The square brackets in the following list
denote that the argument is optional.
■
assert([message,]
booleanValue)
■
assertTrue([message,]
booleanValue)
■
assertFalse([message,]
booleanValue)
■
assertEquals([message,]
expectedValue,
actualValue)
■
assertNotEquals([message,]
expectedValue,
actualValue)
■
assertNull([message,]
value)
■
assertNotNull([message,]
value)
■
assertUndefined([message,]
value)
■
assertNotUndefined([message,]
value)
■
assertNaN([message,]
value)
■
assertNotNaN([message,]
value)
■
fail(message)
Like
JU
nit, JsUnit lets you use
setUp
and
tearDown
functions. JsUnit calls your
setUp
function before each test function and your
tearDown
function after each
test function.
JsUnit supports an equivalent to
@BeforeClass
if you define a function called
set-
UpPage
. JsUnit calls
setUpPage
once after the page is loaded but before it calls any test
functions. When your
setUpPage
function ends, it must set the variable
setUpPage-
Status
to
'complete'
to indicate to JsUnit that it can proceed to execute the page.
JsUnit versus JUnit
JsUnit differs from JUnit in that JsUnit doesn't define the order of test function
invocation; in JUnit, the order of methods in the source file defines the invoca-
tion order.
In addition, although JUnit creates a new test object instance to invoke each
method, JsUnit doesn't use a corresponding action, like reloading the page, which
means that JsUnit preserves page-variable values across test function invocations.
13.4.4
Writing JsUnit test suites
As in
JU
nit, you can group JsUnit tests into a suite of related tests. Listing 13.6 wraps
our previous test page into a test suite.
