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import unittest
import jiwer
class TestAlignmentVisualizationWords(unittest.TestCase):
def test_insertion(self):
correct_alignment = (
"sentence 1\n"
"REF: this is a ****\n"
"HYP: this is a test\n"
" I\n"
)
alignment = jiwer.visualize_alignment(
jiwer.process_words("this is a", "this is a test"), show_measures=False
)
self.assertEqual(alignment, correct_alignment)
pass
def test_deletion(self):
correct_alignment = (
"sentence 1\n"
"REF: this is a test\n"
"HYP: this is a ****\n"
" D\n"
)
alignment = jiwer.visualize_alignment(
jiwer.process_words("this is a test", "this is a"), show_measures=False
)
self.assertEqual(alignment, correct_alignment)
def test_substitution(self):
correct_alignment = (
"sentence 1\n"
"REF: this is a test\n"
"HYP: this was a test\n"
" S \n"
)
alignment = jiwer.visualize_alignment(
jiwer.process_words("this is a test", "this was a test"),
show_measures=False,
)
self.assertEqual(alignment, correct_alignment)
def test_all_three(self):
correct_alignment = (
"sentence 1\n"
"REF: this is a ***** test of skill\n"
"HYP: this was a messy test ** *****\n"
" S I D D\n"
)
alignment = jiwer.visualize_alignment(
jiwer.process_words("this is a test of skill", "this was a messy test"),
show_measures=False,
)
self.assertEqual(alignment, correct_alignment)
def test_show_measures(self):
correct_alignment = (
"sentence 1\n"
"REF: this test will have a high word error rate\n"
"HYP: no it will not * **** **** ***** ****\n"
" S S S D D D D D\n"
"\n"
"number of sentences: 1\n"
"substitutions=3 deletions=5 insertions=0 hits=1\n"
"\n"
"mer=88.89%\n"
"wil=97.22%\n"
"wip=2.78%\n"
"wer=88.89%\n"
)
alignment = jiwer.visualize_alignment(
jiwer.process_words(
"this test will have a high word error rate", "no it will not"
),
show_measures=True,
)
self.assertEqual(alignment, correct_alignment)
def test_empty_hypothesis(self):
correct_alignment = "sentence 1\n" "REF: empty\n" "HYP: *****\n" " D\n"
alignment = jiwer.visualize_alignment(
jiwer.process_words("empty", ""), show_measures=False
)
self.assertEqual(alignment, correct_alignment)
def test_multiple_sentences(self):
correct_alignment = (
"sentence 1\n"
"REF: one\n"
"HYP: 1\n"
" S\n"
"\n"
"sentence 2\n"
"REF: two\n"
"HYP: 2\n"
" S\n"
)
alignment = jiwer.visualize_alignment(
jiwer.process_words(["one", "two"], ["1", "2"]),
show_measures=False,
)
self.assertEqual(alignment, correct_alignment)
def test_skip_correct(self):
correct_alignment = (
"sentence 2\n"
"REF: one\n"
"HYP: 1\n"
" S\n"
"\n"
"sentence 3\n"
"REF: two\n"
"HYP: 2\n"
" S\n"
)
alignment = jiwer.visualize_alignment(
jiwer.process_words(
["perfect", "one", "two", "three"], ["perfect", "1", "2", "three"]
),
show_measures=False,
)
self.assertEqual(alignment, correct_alignment)
class TestAlignmentVisualizationCharacters(unittest.TestCase):
def test_insertion(self):
correct_alignment = (
"sentence 1\n"
"REF: this is a*****\n"
"HYP: this is a test\n"
" IIIII\n"
)
alignment = jiwer.visualize_alignment(
jiwer.process_characters("this is a", "this is a test"), show_measures=False
)
self.assertEqual(alignment, correct_alignment)
pass
def test_deletion(self):
correct_alignment = (
"sentence 1\n"
"REF: this is a test\n"
"HYP: this is a*****\n"
" DDDDD\n"
)
alignment = jiwer.visualize_alignment(
jiwer.process_characters("this is a test", "this is a"), show_measures=False
)
self.assertEqual(alignment, correct_alignment)
def test_substitution(self):
correct_alignment = (
"sentence 1\n"
"REF: this is a test\n"
"HYP: this iz a test\n"
" S \n"
)
alignment = jiwer.visualize_alignment(
jiwer.process_characters("this is a test", "this iz a test"),
show_measures=False,
)
self.assertEqual(alignment, correct_alignment)
def test_all_three(self):
correct_alignment = (
"sentence 1\n"
"REF: this *is a tes*t of skill\n"
"HYP: this was a messy te*st***\n"
" IS S IS SSD SDDD\n"
)
alignment = jiwer.visualize_alignment(
jiwer.process_characters(
"this is a test of skill", "this was a messy test"
),
show_measures=False,
)
self.assertEqual(alignment, correct_alignment)
def test_show_measures(self):
correct_alignment = (
"sentence 1\n"
"REF: this test will have a high word error rate\n"
"HYP: no** i**t will n*************o***********t*\n"
" SSDD SDD SDDDDDDDDDDDDD DDDDDDDDDDD D\n"
"\n"
"number of sentences: 1\n"
"substitutions=4 deletions=29 insertions=0 hits=10\n"
"\n"
"cer=76.74%\n"
)
alignment = jiwer.visualize_alignment(
jiwer.process_characters(
"this test will have a high word error rate", "no it will not"
),
show_measures=True,
)
self.assertEqual(alignment, correct_alignment)
def test_empty_hypothesis(self):
correct_alignment = "sentence 1\n" "REF: empty\n" "HYP: *****\n" " DDDDD\n"
alignment = jiwer.visualize_alignment(
jiwer.process_characters("empty", ""), show_measures=False
)
self.assertEqual(alignment, correct_alignment)
def test_multiple_sentences(self):
correct_alignment = (
"sentence 1\n"
"REF: one\n"
"HYP: 1**\n"
" SDD\n"
"\n"
"sentence 2\n"
"REF: two\n"
"HYP: 2**\n"
" SDD\n"
)
alignment = jiwer.visualize_alignment(
jiwer.process_characters(["one", "two"], ["1", "2"]),
show_measures=False,
)
self.assertEqual(alignment, correct_alignment)
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