The phrase "is put to the test" is correct and commonly used in written English.
Example: "The new product is put to the test in the market to see if it will be successful."
Love is put to the test, pain not.
"In times of crisis," she said, "our commitment to fundamental freedoms is put to the test".
The theory is put to the test when Lucy gets hyperdrugged.
The close friendship that binds four women is put to the test.
This is put to the test in productions by the Donmar Warehouse and the RSC.
Whether this strategy would "work" cannot be known until it is put to the test.
Google's informal motto, 'Don't be evil', is put to the test every day.
(HarperTorch, $6.99). The close friendship that binds four women is put to the test.
Patience, never a virtue in Washington, is put to the test.
But his bravado is put to the test by the events "Broken Harbor" has in store.
The study of sustainability management and environmental policy is put to the test when applied to solving real world problems.
