The event in Tokyo is seen as valuable preparation for the upcoming Oceania Cup in Rockhampton - a best of three match series against New Zealand, which doubles as the qualifiers for next year's Olympics.

While the majority of the team Gaudoin selected have been familiar faces in the Hockeyroos setup this year, there are two players from outside of the squad's base in Perth, with 17-year-old Victorian Institute of Sport product Amy Lawton and Newcastle defender Kate Jenner, who trains at the NSW Institute of Sport, receiving call-ups.

"We have full faith in our development squad players to come in and perform a role and push for a spot in the Olympic qualifiers in Rockhampton in September," Gaudoin said.

Highly regarded with huge potential, Lawton returns to the Hockeyroos fold after making her debut and solitary international appearance in a 2019 FIH Pro League match against New Zealand in April.

"We've been aware of Amy for quite some time," Gaudoin said.

"She performed really well in her one match with the Hockeyroos and was one of the standouts at the national under 21 championships recently, so we've seen good progression from her and she deserves her opportunity."

Gaudoin echoed similar sentiments about Jenner.

Having taken time away from the game, the 29-year-old is back in the Hockeyroos mix after an impressive 12 months.

"Kate played for Australia at the Olympics in London in 2012 and prior to this year, played her last match with the Hockeyroos in September 2015," Gaudoin said.

" After taking a sabbatical she came back and played in the 2018 AHL and performed really well.

"She also went with the Hockeyroos squad to the United States and Argentina in the 2019 FIH Pro League this year, so she has a fair bit of experience and is a strong and smart defender."

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Gaudoin is buoyed by the current depth of talent, and reinforced that he is not closing the door on the players who missed out on selection.

"It is still wide open - by picking someone as young as Amy [Lawton] and an older more experienced player like Kate [Jenner], we're showing our hand that no one is out of the race and that's a good thing for women's hockey in Australia," he said.

"As long as they're willing to work, do the hard yards and put the team first, then they'll have the opportunity to compete.

"The upcoming Hockey One League will also form an important part for selection for the Olympic squad selected at the end of the year, but prior to that we need to make sure we qualify first."

For the Olympic test event, the world number two ranked Hockeyroos will fly out for Tokyo on August 13 to face China (ranked 11), India (ranked 10) and hosts Japan (ranked 14).

The matches will be the first played since the completion of the 2020 Olympic hockey venue.

"This event gives us a chance to get a gauge on what it will be like at the Olympics in the hot and humid environment over there," Gaudoin said.

"It also allows us to work on some of our combinations in the lead up to the Oceania Cup and experience a little bit of what we hope to expect at this time next year.

"But primarily, it's an opportunity to fine tune our team ahead of the Olympic qualifiers against New Zealand in Rockhampton next month."

The test event, which is part of the 'Ready Steady Tokyo' series and is a dress rehearsal to ensure a successful operation during the Olympic Games, is organised by the Tokyo Organising Committee in conjunction with FIH.

The Hockeyroos' first match will be against China on August 17, followed by clashes with India (August 18) and Japan (August 20) - with the final to be played on August 21.

Joining the South Coast duo in the squad are Kristina Bates, Edwina Bone, Emily Chalker, Savannah Fitzpatrick, Kate Jenner, Amy Lawton, Rachael Lynch, Ambrosia Malone, Georgina Morgan, Kaitlin Nobbs, Brooke Peris, Renee Taylor, Sophie Taylor and Georgia Wilson.