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I've refactored several tests, using:
assertFileExists
andassertFileNotExists
instead offile_exists
function;assertArrayHasKey
andassertArrayNotHasKey
instead ofisset
andarray_key_exists
functions;assertStringEqualsFile
instead offile_get_contents
function when comparing astring
and a file;assertFileEquals
instead offile_get_contents
function when comparing two files;assertGreaterThan
andassertLessThan
for mathematical comparisons;assertFalse
andassertNotFalse
instead of strict comparisons withfalse
keyword;assertTrue
instead of strict comparisons withtrue
keyword;assertEmpty
andassertNotEmpty
instead ofempty
function;assertInternalType
instead ofis_*
functions;assertEquals
andassertNotEquals
instead of comparisons;assertSame
andassertNotSame
instead of comparisons;assertContains
instead ofin_array
andstrpos
functions;assertCount
instead ofcount
andsizeof
functions;assertInstanceOf
andassertNotInstanceOf
instead ofinstanceof
operator.