This method is used to compare the receiver object (this
)
with the argument object (arg0
) for equivalence
This method is used to compare the receiver object (this
)
with the argument object (arg0
) for equivalence.
The default implementations of this method is an equivalence relation:
x
of type Any
,
x.equals(x)
should return true
.x
and y
of type
Any
, x.equals(y)
should return true
if and only
if y.equals(x)
returns true
.x
, y
, and z
of type AnyRef
if x.equals(y)
returns true
and
y.equals(z)
returns
true
, then x.equals(z)
should return true
.
If you override this method, you should verify that
your implementation remains an equivalence relation.
Additionally, when overriding this method it is often necessary to
override hashCode
to ensure that objects that are
"equal" (o1.equals(o2)
returns true
)
hash to the same Int
(o1.hashCode.equals(o2.hashCode)
).
the object to compare against this object for equality.
true
if the receiver object is equivalent to the argument; false
otherwise.
Returns a hash code value for the object
Returns a hash code value for the object.
The default hashing algorithm is platform dependent.
Note that it is allowed for two objects to have identical hash
codes (o1.hashCode.equals(o2.hashCode)
) yet not be
equal (o1.equals(o2)
returns false
). A
degenerate implementation could always return 0
.
However, it is required that if two objects are equal
(o1.equals(o2)
returns true
) that they
have identical hash codes
(o1.hashCode.equals(o2.hashCode)
). Therefore, when
overriding this method, be sure to verify that the behavior is
consistent with the equals
method.
Returns the next Ordinal
in the series tracked by this Tracker
Returns the next Ordinal
in the series tracked by this Tracker
.
This method saves the current Ordinal
in a local variable, reassigns the current Ordinal
with the value returned by invoking nextOrdinal
on the saved Ordinal
, then
returns the saved Ordinal
. As a result, if this method is invoked immediately after construction,
this method will return the Ordinal
passed as firstOrdinal
.
Returns a Tracker
initialized with the first element in the tuple returned by invoking
nextNewOldPair
on the current Ordinal
, and reassigns the current Ordinal
with the second element that was returned by the nextNewOldPair
invocation
Returns a Tracker
initialized with the first element in the tuple returned by invoking
nextNewOldPair
on the current Ordinal
, and reassigns the current Ordinal
with the second element that was returned by the nextNewOldPair
invocation.
The Ordinal
series of the returned Tracker
will be placed after all the
Ordinal
s previously returned by invoking nextOrdinal
on this Tracker
and
before all the Ordinal
s subsequently returned by invoking nextOrdinal
on
this Tracker
in the future. This method is intended to be used when executing nested suites
in parallel. Each nested suite passed to the Distributor
will get its own Tracker
obtained by invoking nextTracker
on the current thread's Tracker
.
Returns a string representation of the object
Returns a string representation of the object.
The default representation is platform dependent.
Constructs a new Tracker
with a new Ordinal
initialized with a run stamp of 0
Constructs a new Tracker
with a new Ordinal
initialized with a run stamp of 0.
Class that tracks the progress of a series of
Ordinal
s produced by invokingnext
andnextNewOldPair
on the currentOrdinal
.Instances of this class are thread safe. Multiple threads can invoke
nextOrdinal
andnextTracker
concurrently. This facilitates multi-threaded tests that sendinfoProvided
reports concurrently. When using aDispatcher
to execute suites in parallel, the intention is that eachTracker
will only be used by one thread. For example, if the optionalDispatcher
passed toSuite
's implementation ofrunNestedSuites
is defined, that method will obtain a newTracker
by invokingnextTracker
for each nested suite it passes to theDispatcher
.