Adding tests for the parselmouth.praat.run interface

tests/test_praat.py

@@ -0,0 +1,41 @@
+import pytest
+
+import parselmouth
+
+
+def test_run_script(resources):
+	script = """
+	Read from file: "{}"
+	To Intensity: 100.0, 0.0, "yes"
+	selectObject: 1
+	selectObject: "Intensity the_north_wind_and_the_sun"
+	""".format(resources["the_north_wind_and_the_sun.wav"])
+
+	assert parselmouth.praat.run(script)[0] == parselmouth.Sound(resources["the_north_wind_and_the_sun.wav"]).to_intensity()
+
+	with pytest.raises(parselmouth.PraatError, match="Found 3 arguments but expected only 0."):
+		parselmouth.praat.run(script, 42, "some_argument", True)
+
+
+def test_run_script_with_parameters(resources):
+	script = """
+	form Test
+		positive minPitch 100.0
+		real timeStep 0.0
+		boolean subtractMean "yes"
+	endform
+	
+	Read from file: "{}"
+	To Intensity: minPitch, timeStep, subtractMean
+	selectObject: 1
+	selectObject: "Intensity the_north_wind_and_the_sun"
+	""".format(resources["the_north_wind_and_the_sun.wav"])
+
+	min_pitch = 75.0
+	time_step = 0.05
+	subtract_mean = False
+
+	assert parselmouth.praat.run(script, min_pitch, time_step, subtract_mean)[0] == parselmouth.Sound(resources["the_north_wind_and_the_sun.wav"]).to_intensity(min_pitch, time_step, subtract_mean)
+
+	with pytest.raises(parselmouth.PraatError, match="Found 0 arguments but expected more."):
+		parselmouth.praat.run(script)