Prior to this commit, inlined properties could only be supplied as an
array of Strings as follows.
@TestPropertySource(properties = {
"key1 = value1",
"key2 = value2"
})
Although a user could supply a text block, it was previously rejected
due to a "single key-value pair per string" check in
TestPropertySourceUtils.convertInlinedPropertiesToMap(String...).
This commit removes that restriction and allows the above example to be
refactored to use a text block as follows.
@TestPropertySource(properties = """
key1 = value1
key2 = value2
"""
)
Closes gh-31053
a2f52db452