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