circuitpython/tests/micropython/heapalloc_str.py

# String operations which don't require allocation
import micropython

micropython.heap_lock()

# Concatenating empty string returns original string
b"" + b""
b"" + b"1"
b"2" + b""

"" + ""
"" + "1"
"2" + ""

# If no replacements done, returns original string
"foo".replace(",", "_")

micropython.heap_unlock()
tests/heapalloc_str: Test for alloc-free string operations. Starts with concatenation with an empty string. 2017-01-26 16:45:30 -05:00			`# String operations which don't require allocation`
			`import micropython`

			`micropython.heap_lock()`

tests/heapalloc_str: Test no-replacement case for str.replace(). 2017-03-22 15:17:52 -04:00			`# Concatenating empty string returns original string`
tests/heapalloc_str: Test for alloc-free string operations. Starts with concatenation with an empty string. 2017-01-26 16:45:30 -05:00			`b"" + b""`
			`b"" + b"1"`
			`b"2" + b""`

			`"" + ""`
			`"" + "1"`
			`"2" + ""`

tests/heapalloc_str: Test no-replacement case for str.replace(). 2017-03-22 15:17:52 -04:00			`# If no replacements done, returns original string`
			`"foo".replace(",", "_")`

tests/heapalloc_str: Test for alloc-free string operations. Starts with concatenation with an empty string. 2017-01-26 16:45:30 -05:00			`micropython.heap_unlock()`