NAME

Net::DBus::Test::MockIterator - Iterator over a mock message

SYNOPSIS

Creating a new message

my $msg = new Net::DBus::Test::MockMessage my $iterator = $msg->iterator; $iterator->append_boolean(1); $iterator->append_byte(123);

Reading from a message

my $msg = ...get it from somewhere... my $iter = $msg->iterator(); my $i = 0; while ($iter->has_next()) { $iter->next(); $i++; if ($i == 1) { my $val = $iter->get_boolean(); } elsif ($i == 2) { my $val = $iter->get_byte(); } }

DESCRIPTION

This module provides a mock counterpart to the Net::DBus::Binding::Iterator object which is capable of iterating over mock message objects. Instances of this module are not created directly, instead they are obtained via the iterator method on the Net::DBus::Test::MockMessage module.

METHODS

$res = $iter->has_next(): Determines if there are any more fields in the message itertor to be read. Returns a positive value if there are more fields, zero otherwise.
$success = $iter->next(): Skips the iterator onto the next field in the message. Returns a positive value if the current field pointer was successfully advanced, zero otherwise.
my $val = $iter->get_boolean()

$iter->append_boolean($val);

Read or write a boolean value from/to the message iterator

my $val = $iter->get_byte()

$iter->append_byte($val);

Read or write a single byte value from/to the message iterator.

my $val = $iter->get_string()

$iter->append_string($val);

Read or write a UTF-8 string value from/to the message iterator

my $val = $iter->get_object_path()

$iter->append_object_path($val);

Read or write a UTF-8 string value, whose contents is a valid object path, from/to the message iterator

my $val = $iter->get_signature()

$iter->append_signature($val);

Read or write a UTF-8 string, whose contents is a valid type signature, value from/to the message iterator

my $val = $iter->get_int16()

$iter->append_int16($val);

Read or write a signed 16 bit value from/to the message iterator

my $val = $iter->get_uint16()

$iter->append_uint16($val);

Read or write an unsigned 16 bit value from/to the message iterator

my $val = $iter->get_int32()

$iter->append_int32($val);

Read or write a signed 32 bit value from/to the message iterator

my $val = $iter->get_uint32()

$iter->append_uint32($val);

Read or write an unsigned 32 bit value from/to the message iterator

my $val = $iter->get_int64()

$iter->append_int64($val);

Read or write a signed 64 bit value from/to the message iterator. An error will be raised if this build of Perl does not support 64 bit integers

my $val = $iter->get_uint64()

$iter->append_uint64($val);

Read or write an unsigned 64 bit value from/to the message iterator. An error will be raised if this build of Perl does not support 64 bit integers

my $val = $iter->get_double()

$iter->append_double($val);

Read or write a double precision floating point value from/to the message iterator

my $val = $iter->get_unix_fd()

$iter->append_unix_fd($val);

Read or write a unix_fd value from/to the message iterator

my $value = $iter->get()

my $value = $iter->get($type);

Get the current value pointed to by this iterator. If the optional $type parameter is supplied, the wire type will be compared with the desired type & a warning output if their differ. The $type value must be one of the Net::DBus::Binding::Message::TYPE* constants.

my $hashref = $iter->get_dict(): If the iterator currently points to a dictionary value, unmarshalls and returns the value as a hash reference.
my $hashref = $iter->get_array(): If the iterator currently points to an array value, unmarshalls and returns the value as a array reference.
my $hashref = $iter->get_variant(): If the iterator currently points to a variant value, unmarshalls and returns the value contained in the variant.
my $hashref = $iter->get_struct(): If the iterator currently points to an struct value, unmarshalls and returns the value as a array reference. The values in the array correspond to members of the struct.
$iter->append($value)

$iter->append($value, $type)

Appends a value to the message associated with this iterator. The value is marshalled into wire format, according to the following rules. If the $value is an instance of Net::DBus::Binding::Value, the embedded data type is used. If the $type parameter is supplied, that is taken to represent the data type. The type must be one of the Net::DBus::Binding::Message::TYPE_* constants. Otherwise, the data type is chosen to be a string, dict or array according to the perl data types SCALAR, HASH or ARRAY.

my $type = $iter->guess_type($value): Make a best guess at the on the wire data type to use for marshalling $value. If the value is a hash reference, the dictionary type is returned; if the value is an array reference the array type is returned; otherwise the string type is returned.
my $sig = $iter->format_signature($type): Given a data type representation, construct a corresponding signature string
$iter->append_array($value, $type): Append an array of values to the message. The $value parameter must be an array reference, whose elements all have the same data type specified by the $type parameter.
$iter->append_struct($value, $type): Append a struct to the message. The $value parameter must be an array reference, whose elements correspond to members of the structure. The $type parameter encodes the type of each member of the struct.
$iter->append_dict($value, $type): Append a dictionary to the message. The $value parameter must be an hash reference.The $type parameter encodes the type of the key and value of the hash.
$iter->append_variant($value): Append a value to the message, encoded as a variant type. The $value can be of any type, however, the variant will be encoded as either a string, dictionary or array according to the rules of the guess_type method.
my $type = $iter->get_arg_type: Retrieves the type code of the value pointing to by this iterator. The returned code will correspond to one of the constants Net::DBus::Binding::Message::TYPE_*
my $type = $iter->get_element_type: If the iterator points to an array, retrieves the type code of array elements. The returned code will correspond to one of the constants Net::DBus::Binding::Message::TYPE_*

BUGS

It doesn't completely replicate the API of Net::DBus::Binding::Iterator, merely enough to make the high level bindings work in a test scenario.

AUTHOR

Daniel P. Berrange