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#!/usr/bin/env python3
import os
from pocketsphinx import Decoder, Config, get_model_path
import unittest
import tempfile
MODELDIR = os.path.join(os.path.dirname(__file__), "../../model")
DATADIR = os.path.join(os.path.dirname(__file__), "../../test/data")
class TestConfig(unittest.TestCase):
def test_bogus_old_config(self):
"""Test backward-compatibility. DO NOT USE Config THIS WAY!"""
config = Decoder.default_config()
intval = 256
floatval = 0.025
stringval = "~/pocketsphinx"
boolval = True
# Check values that was previously set.
s = config.get_float("-wlen")
print("Float:", floatval, " ", s)
self.assertEqual(s, 0.025625)
config.set_float("-wlen", floatval)
s = config.get_float("-wlen")
self.assertEqual(s, floatval)
s = config.get_int("-nfft")
print("Int:", intval, " ", s)
config.set_int("-nfft", intval)
s = config.get_int("-nfft")
self.assertEqual(s, intval)
s = config.get_string("-rawlogdir")
print("String:", stringval, " ", s)
config.set_string("-rawlogdir", stringval)
s = config.get_string("-rawlogdir")
self.assertEqual(s, stringval)
s = config.get_boolean("-backtrace")
print("Boolean:", boolval, " ", s)
config.set_boolean("-backtrace", boolval)
s = config.get_boolean("-backtrace")
self.assertEqual(s, boolval)
config.set_string_extra("-something12321", "abc")
s = config.get_string("-something12321")
self.assertEqual(s, "abc")
def test_config_file(self):
config = Config.parse_file(
os.path.join(MODELDIR, "en-us", "en-us", "feat.params")
)
self.assertEqual(config["lowerf"], 130)
self.assertEqual(config["upperf"], 6800)
self.assertEqual(config["nfilt"], 25)
self.assertEqual(config["transform"], "dct")
self.assertEqual(config["lifter"], 22)
self.assertEqual(config["feat"], "1s_c_d_dd")
self.assertEqual(config["svspec"], "0-12/13-25/26-38")
self.assertEqual(config["agc"], "none")
self.assertEqual(config["cmn"], "batch")
self.assertEqual(config["varnorm"], False)
# not an actual config parameter, it seems!
with self.assertRaises(KeyError):
self.assertEqual(config["model"], "ptm")
self.assertEqual(config["remove_noise"], True)
class TestConfigHash(unittest.TestCase):
def test_config__getitem(self):
config = Config()
self.assertEqual(config["samprate"], 16000)
self.assertEqual(config["nfft"], 0)
self.assertEqual(config["fsg"], None)
self.assertEqual(config["backtrace"], False)
self.assertEqual(config["feat"], "1s_c_d_dd")
def test_config_easyinit(self):
config = Config(samprate=11025, fsg=None, backtrace=False, feat="1s_c_d_dd")
self.assertEqual(config["samprate"], 11025)
self.assertEqual(config.get_int("-samprate"), 11025)
self.assertEqual(config["nfft"], 0)
self.assertEqual(config["fsg"], None)
self.assertEqual(config["backtrace"], False)
self.assertEqual(config["feat"], "1s_c_d_dd")
def test_config_coercion(self):
config = Config()
config["samprate"] = 48000.0
self.assertEqual(config["samprate"], 48000)
config["nfft"] = "1024"
self.assertEqual(config["nfft"], 1024)
def test_config_defaults(self):
# System-wide defaults
config = Config()
self.assertEqual(config["hmm"], get_model_path("en-us/en-us"))
self.assertEqual(config["lm"], get_model_path("en-us/en-us.lm.bin"))
self.assertEqual(config["dict"], get_model_path("en-us/cmudict-en-us.dict"))
# Override them
config = Config(hmm=None, lm=None, dict=None)
self.assertEqual(config["hmm"], None)
self.assertEqual(config["lm"], None)
self.assertEqual(config["dict"], None)
# Legacy method of overriding
config = Config(lm=False)
self.assertEqual(config["hmm"], get_model_path("en-us/en-us"))
self.assertEqual(config["lm"], None)
self.assertEqual(config["dict"], get_model_path("en-us/cmudict-en-us.dict"))
# Check that POCKETSPHINX_PATH is respected
os.environ["POCKETSPHINX_PATH"] = MODELDIR
config = Config()
self.assertEqual(config["hmm"], os.path.join(MODELDIR, "en-us/en-us"))
def test_stupid_config_hacks(self):
"""Test various backward-compatibility special cases."""
config = Config()
self.assertEqual(config["lm"], get_model_path("en-us/en-us.lm.bin"))
config = Config(jsgf="spam_eggs_and_spam.gram")
self.assertIsNone(config["lm"])
self.assertEqual(config["jsgf"], "spam_eggs_and_spam.gram")
with self.assertRaises(RuntimeError):
config = Config()
config["jsgf"] = os.path.join(DATADIR, "goforward.gram")
_ = Decoder(config)
with self.assertRaises(RuntimeError):
_ = Decoder(kws=os.path.join(DATADIR, "goforward.kws"),
jsgf=os.path.join(DATADIR, "goforward.gram"))
_ = Decoder(jsgf=os.path.join(DATADIR, "goforward.gram"))
class TestConfigIter(unittest.TestCase):
def test_config__iter(self):
config = Config()
default_len = len(config)
for key in config:
self.assertTrue(key in config)
for key, value in config.items():
self.assertTrue(key in config)
self.assertEqual(config[key], value)
config = Config()
self.assertEqual(default_len, len(config))
config["lm"] = None
config["hmm"] = os.path.join(MODELDIR, "en-us", "en-us")
config["fsg"] = os.path.join(DATADIR, "goforward.fsg")
config["lm"] = None # It won't do this automatically
config["dict"] = os.path.join(DATADIR, "turtle.dic")
self.assertEqual(default_len, len(config))
for key in config:
self.assertTrue(key in config)
for key, value in config.items():
self.assertTrue(key in config)
self.assertEqual(config[key], value)
self.assertIsNone(config["mdef"])
# Now check weird extra value stuff. Length should never change
_ = Decoder(config)
# But mdef, etc, should be filled in
default_mdef = config["mdef"]
self.assertIsNotNone(default_mdef)
# And we should get them for dash and underscore versions too
self.assertEqual(default_mdef, config["-mdef"])
self.assertEqual(default_mdef, config["_mdef"])
self.assertEqual(default_len, len(config))
for key in config:
self.assertTrue(key in config)
for key, value in config.items():
self.assertTrue(key in config)
self.assertEqual(config[key], value)
class TestConfigDefn(unittest.TestCase):
def test_config_describe(self):
config = Config()
for defn in config.describe():
if defn.name == "hmm":
self.assertTrue(defn.required)
class TestConfigJSON(unittest.TestCase):
def assert_parsed(self, config):
self.assertEqual(config["hmm"], "/path/to/some/stuff")
self.assertEqual(config["samprate"], 11025)
self.assertAlmostEqual(config["beam"], 1e-69)
def test_config_parse(self):
config = Config.parse_json("""
{
"hmm": "/path/to/some/stuff",
"samprate": 11025,
"beam": 1e-69
}
""")
self.assert_parsed(config)
with tempfile.TemporaryFile(mode="w+t") as tf:
tf.write(config.dumps())
tf.flush()
tf.seek(0, 0)
json = tf.read()
config2 = Config.parse_json(json)
self.assert_parsed(config2)
for k in config:
self.assertAlmostEqual(config[k], config2[k], 2)
config3 = Config.parse_json(
"hmm: /path/to/some/stuff, samprate: 11025, beam: 1e-69")
self.assert_parsed(config3)
for k in config:
self.assertAlmostEqual(config[k], config3[k], 2)
if __name__ == "__main__":
unittest.main()
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