Added support for multiple calls of the same function with different args

[michalbundyra]

Fixes #6

@rjmackay would you be able to have a look on this solution and test it with your project? Thanks!

[rjmackay]

That seems to work for me.

Here's some of the code I have testing an IMAP email integration just to give you an idea:

$mockFetchStructure = PHPMockery::mock("Ushahidi\App\DataSource\Email", "imap_fetchstructure");
        // Call for first email
        $mockFetchStructure
            ->with('notreallyaconnection', 1, FT_UID)
            ->once()
            ->andReturn(
                (object)[
                    'parts' => [
                        11 => (object)[
                            'subtype' => 'HTML'
                        ],
                        111 => (object)[
                            'subtype' => 'PLAIN'
                        ]
                    ]
                ]
            );
        // Handle call for 2nd message
        $mockFetchStructure
            ->once()
            ->with('notreallyaconnection', 5, FT_UID)
            ->andReturn(
                (object)[
                    'parts' => [
                        55 => (object)[
                            'subtype' => 'HTML'
                        ]
                    ]
                ]
            );
        // Handle call for 3rd message
        $mockFetchStructure
            ->once()
            ->with('notreallyaconnection', 7, FT_UID)
            ->andReturn(
                (object)[
                    'parts' => [
                        77 => (object)[
                            'subtype' => 'PLAIN'
                        ]
                    ]
                ]
            );

[michalbundyra]

@rjmackay Thanks for your feedback! I'm going to release it shortly :)