68 lines
1.6 KiB
Python
68 lines
1.6 KiB
Python
|
# Test the esp32 NVS class - access to esp-idf's Non-Volatile-Storage
|
||
|
|
|
||
|
|
from esp32 import NVS
|
||
|
|
|
||
|
|
nvs = NVS("mp-test")
|
||
|
|
|
||
|
|
# test setting and gettin an integer kv
|
||
|
|
nvs.set_i32("key1", 1234)
|
||
|
|
print(nvs.get_i32("key1"))
|
||
|
|
nvs.set_i32("key2", -503)
|
||
|
|
print(nvs.get_i32("key2"))
|
||
|
|
print(nvs.get_i32("key1"))
|
||
|
|
|
||
|
|
# test setting and getting a blob kv using a bytearray
|
||
|
|
blob1 = "testing a string as a blob"
|
||
|
|
nvs.set_blob("blob1", blob1)
|
||
|
|
buf1 = bytearray(len(blob1))
|
||
|
|
len1 = nvs.get_blob("blob1", buf1)
|
||
|
|
print(buf1)
|
||
|
|
print(len(blob1), len1)
|
||
|
|
|
||
|
|
# test setting and getting a blob kv using a string
|
||
|
|
blob2 = b"testing a bytearray"
|
||
|
|
nvs.set_blob("blob2", blob2)
|
||
|
|
buf2 = bytearray(len(blob2))
|
||
|
|
len2 = nvs.get_blob("blob2", buf2)
|
||
|
|
print(buf2)
|
||
|
|
print(len(blob2), len2)
|
||
|
|
|
||
|
|
# test raising of error exceptions
|
||
|
|
nvs.erase_key("key1")
|
||
|
|
try:
|
||
|
|
nvs.erase_key("key1") # not found
|
||
|
|
except OSError as e:
|
||
|
|
print(e)
|
||
|
|
try:
|
||
|
|
nvs.get_i32("key1") # not found
|
||
|
|
except OSError as e:
|
||
|
|
print(e)
|
||
|
|
try:
|
||
|
|
nvs.get_i32("blob1") # not found (blob1 exists but diff type)
|
||
|
|
except OSError as e:
|
||
|
|
print(e)
|
||
|
|
try:
|
||
|
|
buf3 = bytearray(10)
|
||
|
|
nvs.get_blob("blob1", buf3) # invalid length (too short)
|
||
|
|
except OSError as e:
|
||
|
|
print(e)
|
||
|
|
|
||
|
|
nvs.commit() # we're not verifying that this does anything, just doesn't error
|
||
|
|
|
||
|
|
# test using a second namespace and that it doesn't interfere with first
|
||
|
|
nvs2 = NVS("mp-test2")
|
||
|
|
try:
|
||
|
|
print(nvs2.get_i32("key2"))
|
||
|
|
except OSError as e:
|
||
|
|
print(e)
|
||
|
|
nvs2.set_i32("key2", 7654)
|
||
|
|
print(nvs.get_i32("key2"))
|
||
|
|
print(nvs2.get_i32("key2"))
|
||
|
|
|
||
|
|
# clean-up (the namespaces will remain)
|
||
|
|
nvs.erase_key("key2")
|
||
|
|
nvs.erase_key("blob1")
|
||
|
|
nvs.erase_key("blob2")
|
||
|
|
nvs2.erase_key("key2")
|
||
|
|
nvs.commit()
|