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Code Issues Releases Activity

allow parser to deal with null input

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Kelly Brazil
2024-12-20 16:31:38 -08:00
parent 8995ac686a
commit 7fda79d841
2 changed files with 56 additions and 44 deletions
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94
jc/parsers/amixer.py
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@ -90,6 +90,7 @@ from typing import Dict
import jc.utils
from jc.utils import convert_to_int
from jc.exceptions import ParseError
class info():
"""Provides parser metadata (version, author, etc.)"""
@ -115,6 +116,9 @@ def _process(proc_data: Dict) -> Dict:
Returns:
(dict) processed structured data adhering to the schema
"""
if not proc_data:
return {}
# Initialize the processed dictionary
processed = {
"control_name": proc_data.get("control_name", ""),
@ -209,53 +213,55 @@ def parse(
# starts the parsing from here
mapping: Dict = {}
# split lines and than work on each line
lines = data.splitlines()
first_line = lines[0].strip()
# Extract the control name from the first line
if first_line.startswith("Simple mixer control"):
control_name = first_line.split("'")[1]
else:
raise ValueError("Invalid amixer output format: missing control name.")
# map the control name
mapping["control_name"] = control_name
if jc.utils.has_data(data):
# split lines and than work on each line
lines = data.splitlines()
first_line = lines[0].strip()
# Process subsequent lines for capabilities, channels, limits, and channel-specific mapping.
# gets the lines from the next line - because we already took care the first line.
for line in lines[1:]:
# strip the line (maybe there are white spaces in the begin&end)
line = line.strip()
# Extract the control name from the first line
if first_line.startswith("Simple mixer control"):
control_name = first_line.split("'")[1]
else:
raise ParseError("Invalid amixer output format: missing control name.")
# map the control name
mapping["control_name"] = control_name
if line.startswith("Capabilities:"):
mapping["capabilities"] = line.split(":")[1].strip().split()
elif line.startswith("Playback channels:"):
mapping["playback_channels"] = line.split(":")[1].strip().split(" - ")
elif line.startswith("Limits:"):
limits = line.split(":")[1].strip().split(" - ")
mapping["limits"] = {
"playback_min": limits[0].split()[1],
"playback_max": limits[1]
}
elif line.startswith("Mono:") or line.startswith("Front Left:") or line.startswith("Front Right:"):
# Identify the channel name and parse its information
channel_name = line.split(":")[0].strip().lower().replace(" ", "_")
channel_info = line.split(":")[1].strip()
# Example: "Playback 255 [100%] [0.00db] [on]"
channel_data = channel_info.split(" ")
if channel_data[0] == "":
continue
playback_value = channel_data[1]
percentage = channel_data[2].strip("[]") # Extract percentage e.g., "100%"
db_value = channel_data[3].strip("[]") # Extract db value e.g., "0.00db"
status = channel_data[4].strip("[]") # Extract status e.g., "on" or "off"
# Process subsequent lines for capabilities, channels, limits, and channel-specific mapping.
# gets the lines from the next line - because we already took care the first line.
for line in lines[1:]:
# strip the line (maybe there are white spaces in the begin&end)
line = line.strip()
# Store channel mapping in the dictionary
mapping[channel_name] = {
"playback_value": playback_value,
"percentage": percentage,
"db": db_value.lower(),
"status": status
}
if line.startswith("Capabilities:"):
mapping["capabilities"] = line.split(":")[1].strip().split()
elif line.startswith("Playback channels:"):
mapping["playback_channels"] = line.split(":")[1].strip().split(" - ")
elif line.startswith("Limits:"):
limits = line.split(":")[1].strip().split(" - ")
mapping["limits"] = {
"playback_min": limits[0].split()[1],
"playback_max": limits[1]
}
elif line.startswith("Mono:") or line.startswith("Front Left:") or line.startswith("Front Right:"):
# Identify the channel name and parse its information
channel_name = line.split(":")[0].strip().lower().replace(" ", "_")
channel_info = line.split(":")[1].strip()
# Example: "Playback 255 [100%] [0.00db] [on]"
channel_data = channel_info.split(" ")
if channel_data[0] == "":
continue
playback_value = channel_data[1]
percentage = channel_data[2].strip("[]") # Extract percentage e.g., "100%"
db_value = channel_data[3].strip("[]") # Extract db value e.g., "0.00db"
status = channel_data[4].strip("[]") # Extract status e.g., "on" or "off"
# Store channel mapping in the dictionary
mapping[channel_name] = {
"playback_value": playback_value,
"percentage": percentage,
"db": db_value.lower(),
"status": status
}
return mapping if raw else _process(mapping)

6
tests/test_amixer.py
View File

@ -22,6 +22,12 @@ class AmixerTests(unittest.TestCase):
self.test_files_json = [f'{file}.json' for file in self.TEST_FILES_NAME]
self.test_files_processed_json = [f'{file}-processed.json' for file in self.TEST_FILES_NAME]
def test_amixer_sget_nodata(self):
"""
Test 'amixer' with no data
"""
self.assertEqual(jc.parsers.amixer.parse('', quiet=True), {})
def test_amixer_sget(self):
for file_out, file_json, file_processed_json in zip(self.test_files_out, self.test_files_json,
self.test_files_processed_json):