[FEAT] Feedback loop for unmatched test results #945
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| x = prev[index1] | ||
| y = prev[index1 + 1] | ||
| z = curr[index1] | ||
| min_xy = min(x, y) | ||
| min_xyz = min(z, min_xy) | ||
| curr[index1 + 1] = 1 + min_xyz |
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⚡️Codeflash found 73% (0.73x) speedup for levenshtein_distance in codeflash/discovery/functions_to_optimize.py
⏱️ Runtime : 2.04 seconds → 1.18 seconds (best of 8 runs)
📝 Explanation and details
The optimized version achieves a 73% speedup by eliminating Python's built-in min() function calls and replacing them with direct comparisons. This is a targeted micro-optimization that addresses one of the most expensive operations in the Levenshtein distance algorithm.
Key optimization:
- Replaced
min()calls with direct comparisons: The original code usedmin(x, y)andmin(z, min_xy)which create temporary tuples and invoke Python's generic minimum function. The optimized version uses nestedifstatements to find the minimum value directly, avoiding function call overhead and tuple creation.
Why this provides a speedup:
- The
min()function in Python has significant overhead for small numbers of arguments, especially when called millions of times in nested loops - Direct comparisons (
if x < y) are primitive operations that execute much faster than function calls - Eliminates temporary tuple creation that
min()uses internally - Reduces the call stack depth in the inner loop
Performance impact by test case type:
- Identical/similar strings: 55-65% faster - benefits from reduced overhead in character matching paths
- Completely different strings: 109-121% faster - maximizes benefit since every character comparison triggers the
min()replacement logic - Large strings with many differences: 83-93% faster - compounds the per-operation savings across many iterations
- Small strings: 15-50% faster - still benefits but overhead reduction is less pronounced
The optimization is particularly effective for the Levenshtein algorithm because the min() operation occurs in the innermost loop that executes O(n×m) times, making even small per-call improvements significant when multiplied across all iterations.
✅ Correctness verification report:
| Test | Status |
|---|---|
| ⚙️ Existing Unit Tests | 🔘 None Found |
| 🌀 Generated Regression Tests | ✅ 148 Passed |
| ⏪ Replay Tests | 🔘 None Found |
| 🔎 Concolic Coverage Tests | 🔘 None Found |
| 📊 Tests Coverage | 96.6% |
🌀 Generated Regression Tests and Runtime
from __future__ import annotations
# imports
import pytest # used for our unit tests
from codeflash.discovery.functions_to_optimize import levenshtein_distance
# unit tests
# 1. Basic Test Cases
def test_identical_strings():
# Levenshtein distance between identical strings should be 0
codeflash_output = levenshtein_distance("kitten", "kitten") # 15.8μs -> 9.90μs (60.0% faster)
codeflash_output = levenshtein_distance("", "") # 480ns -> 441ns (8.84% faster)
codeflash_output = levenshtein_distance("a", "a") # 2.09μs -> 1.95μs (7.22% faster)
def test_single_insertion():
# Inserting one character
codeflash_output = levenshtein_distance("kitten", "kitte") # 13.0μs -> 8.69μs (49.4% faster)
codeflash_output = levenshtein_distance("kitte", "kitten") # 10.1μs -> 6.12μs (65.6% faster)
codeflash_output = levenshtein_distance("", "a") # 421ns -> 421ns (0.000% faster)
codeflash_output = levenshtein_distance("a", "") # 360ns -> 361ns (0.277% slower)
def test_single_deletion():
# Deleting one character
codeflash_output = levenshtein_distance("kitten", "kittn") # 12.6μs -> 8.52μs (48.5% faster)
codeflash_output = levenshtein_distance("kittn", "kitten") # 10.0μs -> 5.96μs (67.9% faster)
def test_single_substitution():
# Substituting one character
codeflash_output = levenshtein_distance("kitten", "sitten") # 14.8μs -> 9.26μs (60.2% faster)
codeflash_output = levenshtein_distance("kitten", "kitteb") # 11.7μs -> 6.81μs (72.4% faster)
codeflash_output = levenshtein_distance("a", "b") # 2.22μs -> 1.89μs (17.5% faster)
def test_multiple_operations():
# Multiple edits required
codeflash_output = levenshtein_distance("kitten", "sitting") # 16.4μs -> 10.3μs (58.8% faster)
codeflash_output = levenshtein_distance("flaw", "lawn") # 6.70μs -> 4.47μs (50.0% faster)
def test_empty_and_nonempty():
# One string empty, one non-empty
codeflash_output = levenshtein_distance("", "abc") # 751ns -> 751ns (0.000% faster)
codeflash_output = levenshtein_distance("abc", "") # 431ns -> 451ns (4.43% slower)
# 2. Edge Test Cases
def test_both_empty():
# Both strings are empty
codeflash_output = levenshtein_distance("", "") # 781ns -> 761ns (2.63% faster)
def test_one_char_vs_empty():
# One string is a single character, other is empty
codeflash_output = levenshtein_distance("a", "") # 771ns -> 781ns (1.28% slower)
codeflash_output = levenshtein_distance("", "z") # 431ns -> 441ns (2.27% slower)
def test_case_sensitivity():
# Case should matter
codeflash_output = levenshtein_distance("abc", "Abc") # 7.70μs -> 5.87μs (31.1% faster)
codeflash_output = levenshtein_distance("ABC", "abc") # 5.14μs -> 3.73μs (37.9% faster)
def test_unicode_characters():
# Unicode characters
codeflash_output = levenshtein_distance("café", "cafe") # 9.39μs -> 6.81μs (37.8% faster)
codeflash_output = levenshtein_distance("naïve", "naive") # 9.85μs -> 5.75μs (71.3% faster)
codeflash_output = levenshtein_distance("你好", "你") # 3.12μs -> 2.81μs (10.7% faster)
codeflash_output = levenshtein_distance("你好", "您好") # 3.10μs -> 2.71μs (14.5% faster)
def test_completely_different_strings():
# No characters in common
codeflash_output = levenshtein_distance("abc", "xyz") # 7.45μs -> 5.61μs (32.9% faster)
codeflash_output = levenshtein_distance("123", "abc") # 5.14μs -> 3.46μs (48.7% faster)
def test_prefix_and_suffix():
# One string is a prefix or suffix of the other
codeflash_output = levenshtein_distance("abc", "abcd") # 7.88μs -> 6.11μs (29.0% faster)
codeflash_output = levenshtein_distance("abcd", "abc") # 5.18μs -> 3.78μs (37.1% faster)
codeflash_output = levenshtein_distance("abc", "zabc") # 5.23μs -> 3.41μs (53.6% faster)
codeflash_output = levenshtein_distance("abc", "abcz") # 4.87μs -> 3.19μs (52.8% faster)
def test_repeated_characters():
# Strings with repeated characters
codeflash_output = levenshtein_distance("aaa", "aaaa") # 4.89μs -> 4.79μs (2.11% faster)
codeflash_output = levenshtein_distance("aaaa", "aaa") # 2.92μs -> 3.06μs (4.89% slower)
codeflash_output = levenshtein_distance("aaa", "bbb") # 5.54μs -> 3.56μs (55.7% faster)
def test_numbers_and_symbols():
# Strings with digits and symbols
codeflash_output = levenshtein_distance("1234", "1243") # 8.68μs -> 6.73μs (28.9% faster)
codeflash_output = levenshtein_distance("!@#$", "!@#") # 5.76μs -> 4.13μs (39.6% faster)
codeflash_output = levenshtein_distance("!@#$", "$#@!") # 6.25μs -> 4.45μs (40.5% faster)
def test_long_identical_strings():
# Long identical strings (edge, but also performance)
s = "a" * 100
codeflash_output = levenshtein_distance(s, s) # 519μs -> 535μs (2.86% slower)
def test_long_strings_one_difference():
# Long strings with one difference at the end
s1 = "a" * 999 + "b"
s2 = "a" * 1000
codeflash_output = levenshtein_distance(s1, s2) # 60.1ms -> 59.3ms (1.27% faster)
codeflash_output = levenshtein_distance(s2, s1) # 60.3ms -> 59.7ms (1.11% faster)
def test_long_strings_completely_different():
# Long completely different strings
s1 = "a" * 500
s2 = "b" * 500
codeflash_output = levenshtein_distance(s1, s2) # 67.1ms -> 30.4ms (121% faster)
# 3. Large Scale Test Cases
def test_large_equal_strings():
# Large identical strings
s = "abcde" * 200 # length 1000
codeflash_output = levenshtein_distance(s, s) # 242ms -> 114ms (111% faster)
def test_large_one_insertion():
# Large string with one insertion
s1 = "a" * 500 + "b" + "a" * 499 # length 1000
s2 = "a" * 1000
codeflash_output = levenshtein_distance(s1, s2) # 58.2ms -> 56.2ms (3.59% faster)
def test_large_one_substitution():
# Large string with one substitution in the middle
s1 = "a" * 499 + "b" + "a" * 500
s2 = "a" * 1000
codeflash_output = levenshtein_distance(s1, s2) # 57.9ms -> 57.2ms (1.16% faster)
def test_large_completely_different():
# Large strings, all substitutions
s1 = "a" * 1000
s2 = "b" * 1000
codeflash_output = levenshtein_distance(s1, s2) # 274ms -> 129ms (112% faster)
def test_large_half_and_half():
# Half the string is the same, half is different
s1 = "a" * 500 + "b" * 500
s2 = "a" * 1000
codeflash_output = levenshtein_distance(s1, s2) # 171ms -> 93.5ms (83.5% faster)
def test_large_with_unicode():
# Large string with unicode characters
s1 = "你" * 500 + "好" * 500
s2 = "你" * 1000
codeflash_output = levenshtein_distance(s1, s2) # 174ms -> 96.3ms (81.0% faster)
# 4. Additional Robustness Cases
@pytest.mark.parametrize(
"s1,s2,expected",
[
("", "", 0),
("", "abc", 3),
("abc", "", 3),
("abc", "abc", 0),
("abc", "ab", 1),
("a", "b", 1),
("", "a", 1),
("a", "", 1),
("kitten", "sitting", 3),
("flaw", "lawn", 2),
("intention", "execution", 5),
("distance", "difference", 5),
("abcdef", "azced", 3),
("short", "ports", 3),
],
)
def test_various_cases(s1, s2, expected):
# Parametrized test for various scenarios
codeflash_output = levenshtein_distance(s1, s2) # 130μs -> 85.5μs (52.5% faster)
# 5. Commutativity property (Levenshtein distance is symmetric)
def test_commutativity():
pairs = [
("kitten", "sitting"),
("flaw", "lawn"),
("abc", "xyz"),
("", "abc"),
("a" * 500, "b" * 500),
("abcde" * 100, "edcba" * 100),
]
for s1, s2 in pairs:
codeflash_output = levenshtein_distance(s1, s2)
d1 = codeflash_output # 126ms -> 58.6ms (116% faster)
codeflash_output = levenshtein_distance(s2, s1)
d2 = codeflash_output # 126ms -> 58.8ms (115% faster)
# 6. Triangle inequality property
def test_triangle_inequality():
# For Levenshtein distance, d(x,z) <= d(x,y) + d(y,z)
triples = [("kitten", "sitting", "sittin"), ("abc", "abd", "ab"), ("a" * 100, "a" * 99 + "b", "a" * 99 + "c")]
for x, y, z in triples:
codeflash_output = levenshtein_distance(x, z)
d_xz = codeflash_output # 557μs -> 537μs (3.89% faster)
codeflash_output = levenshtein_distance(x, y)
d_xy = codeflash_output # 553μs -> 532μs (3.98% faster)
codeflash_output = levenshtein_distance(y, z)
d_yz = codeflash_output
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.from __future__ import annotations
# imports
import pytest # used for our unit tests
from codeflash.discovery.functions_to_optimize import levenshtein_distance
# unit tests
# 1. Basic Test Cases
def test_identical_strings():
# Identical strings should have distance 0
codeflash_output = levenshtein_distance("kitten", "kitten") # 14.4μs -> 9.29μs (55.1% faster)
codeflash_output = levenshtein_distance("", "") # 611ns -> 521ns (17.3% faster)
codeflash_output = levenshtein_distance("a", "a") # 2.03μs -> 1.98μs (2.52% faster)
def test_single_insertion():
# One insertion required
codeflash_output = levenshtein_distance("kitten", "kittena") # 16.1μs -> 9.74μs (65.7% faster)
codeflash_output = levenshtein_distance("abc", "abcd") # 5.73μs -> 3.86μs (48.6% faster)
def test_single_deletion():
# One deletion required
codeflash_output = levenshtein_distance("kitten", "kittn") # 12.9μs -> 8.69μs (49.0% faster)
codeflash_output = levenshtein_distance("abcd", "abc") # 5.71μs -> 4.03μs (41.8% faster)
def test_single_substitution():
# One substitution required
codeflash_output = levenshtein_distance("kitten", "kittan") # 14.5μs -> 9.22μs (57.3% faster)
codeflash_output = levenshtein_distance("abc", "adc") # 4.67μs -> 3.47μs (34.7% faster)
def test_multiple_operations():
# Multiple operations needed
codeflash_output = levenshtein_distance("kitten", "sitting") # 16.6μs -> 10.1μs (65.1% faster)
codeflash_output = levenshtein_distance("flaw", "lawn") # 6.70μs -> 4.50μs (49.0% faster)
codeflash_output = levenshtein_distance("gumbo", "gambol") # 10.7μs -> 6.22μs (72.6% faster)
def test_case_sensitivity():
# Should be case-sensitive
codeflash_output = levenshtein_distance("a", "A") # 4.12μs -> 3.55μs (16.1% faster)
codeflash_output = levenshtein_distance("Python", "python") # 13.1μs -> 7.71μs (69.8% faster)
def test_completely_different_strings():
# All characters different
codeflash_output = levenshtein_distance("abc", "xyz") # 7.57μs -> 5.60μs (35.2% faster)
codeflash_output = levenshtein_distance("aaa", "bbb") # 4.95μs -> 3.26μs (52.0% faster)
# 2. Edge Test Cases
def test_empty_strings():
# One or both strings empty
codeflash_output = levenshtein_distance("", "abc") # 822ns -> 751ns (9.45% faster)
codeflash_output = levenshtein_distance("abc", "") # 441ns -> 460ns (4.13% slower)
codeflash_output = levenshtein_distance("", "") # 290ns -> 321ns (9.66% slower)
def test_one_character_strings():
# Single character to/from empty or another char
codeflash_output = levenshtein_distance("a", "") # 742ns -> 771ns (3.76% slower)
codeflash_output = levenshtein_distance("", "a") # 431ns -> 411ns (4.87% faster)
codeflash_output = levenshtein_distance("a", "b") # 3.80μs -> 3.29μs (15.5% faster)
def test_unicode_strings():
# Unicode and multi-byte characters
codeflash_output = levenshtein_distance("café", "cafe") # 9.28μs -> 6.86μs (35.2% faster)
codeflash_output = levenshtein_distance("你好", "你们好") # 4.51μs -> 3.69μs (22.3% faster)
codeflash_output = levenshtein_distance("🙂", "🙃") # 2.33μs -> 2.08μs (12.0% faster)
codeflash_output = levenshtein_distance("a🙂b", "a🙃b") # 4.81μs -> 3.54μs (36.0% faster)
def test_whitespace_and_special_chars():
# Strings with whitespace and special characters
codeflash_output = levenshtein_distance("a b", "ab") # 6.26μs -> 5.17μs (21.1% faster)
codeflash_output = levenshtein_distance("a_b", "a-b") # 5.12μs -> 3.48μs (47.3% faster)
codeflash_output = levenshtein_distance("hello!", "hello") # 10.1μs -> 5.99μs (68.2% faster)
def test_long_repeated_chars():
# Strings with repeated characters
codeflash_output = levenshtein_distance("aaaaa", "aaaa") # 5.47μs -> 5.39μs (1.48% faster)
codeflash_output = levenshtein_distance("aaaaa", "bbbbb") # 10.9μs -> 6.39μs (71.0% faster)
def test_palindromes_and_reverses():
# Palindrome and reversed strings
codeflash_output = levenshtein_distance("abcde", "edcba") # 11.9μs -> 7.68μs (54.8% faster)
def test_large_difference_in_length():
# One string much longer than the other
codeflash_output = levenshtein_distance("a", "a" * 100) # 25.4μs -> 25.7μs (1.09% slower)
codeflash_output = levenshtein_distance("b" * 100, "b") # 23.3μs -> 23.4μs (0.474% slower)
def test_strings_with_numbers():
# Strings with numbers
codeflash_output = levenshtein_distance("abc123", "abc124") # 14.5μs -> 9.02μs (60.9% faster)
codeflash_output = levenshtein_distance("12345", "54321") # 9.13μs -> 5.82μs (56.8% faster)
# 3. Large Scale Test Cases
def test_large_identical_strings():
# Large identical strings should have distance 0
s = "a" * 500
codeflash_output = levenshtein_distance(s, s) # 13.9ms -> 13.5ms (2.37% faster)
def test_large_one_insertion():
# Large string with one insertion
s1 = "a" * 499
s2 = "a" * 250 + "b" + "a" * 249
codeflash_output = levenshtein_distance(s1, s2) # 13.8ms -> 13.6ms (1.61% faster)
def test_large_one_deletion():
# Large string with one deletion
s1 = "a" * 500
s2 = "a" * 499
codeflash_output = levenshtein_distance(s1, s2) # 13.7ms -> 13.5ms (1.69% faster)
def test_large_one_substitution():
# Large string with one substitution in the middle
s1 = "a" * 250 + "b" + "a" * 249
s2 = "a" * 500
codeflash_output = levenshtein_distance(s1, s2) # 13.9ms -> 13.5ms (2.27% faster)
def test_large_completely_different():
# Large strings, all characters different
s1 = "a" * 500
s2 = "b" * 500
codeflash_output = levenshtein_distance(s1, s2) # 67.2ms -> 30.7ms (119% faster)
def test_large_partial_overlap():
# Large strings with partial overlap
s1 = "a" * 250 + "b" * 250
s2 = "a" * 200 + "b" * 300
# 50 a's replaced with b's
codeflash_output = levenshtein_distance(s1, s2) # 41.7ms -> 21.7ms (92.6% faster)
def test_large_strings_with_unicode():
# Large strings with unicode characters
s1 = "é" * 500
s2 = "e" * 500
codeflash_output = levenshtein_distance(s1, s2) # 67.2ms -> 30.4ms (121% faster)
def test_large_strings_with_alternating_chars():
# Alternating characters
s1 = "ab" * 250
s2 = "ba" * 250
# Each position is different except for the middle if even length
codeflash_output = levenshtein_distance(s1, s2) # 41.5ms -> 21.5ms (92.9% faster)
# 4. Additional Edge Cases
def test_nonequivalent_lengths_and_content():
# Both length and content differ
codeflash_output = levenshtein_distance("abcdefg", "xyz") # 12.9μs -> 8.40μs (53.8% faster)
def test_substring():
# One string is a substring of the other
codeflash_output = levenshtein_distance("abcdef", "abc") # 9.93μs -> 7.42μs (33.7% faster)
codeflash_output = levenshtein_distance("abc", "abcdef") # 7.66μs -> 4.98μs (53.7% faster)
def test_strings_with_tabs_and_newlines():
# Special whitespace characters
codeflash_output = levenshtein_distance("abc\tdef", "abcdef") # 16.8μs -> 10.3μs (62.8% faster)
codeflash_output = levenshtein_distance("abc\ndef", "abcdef") # 13.7μs -> 7.80μs (76.0% faster)
def test_zero_length_and_long_string():
# One empty, one long
codeflash_output = levenshtein_distance("", "a" * 999) # 912ns -> 811ns (12.5% faster)
codeflash_output = levenshtein_distance("b" * 999, "") # 631ns -> 541ns (16.6% faster)
# 5. Determinism and Symmetry
@pytest.mark.parametrize(
"s1,s2",
[
("kitten", "sitting"),
("flaw", "lawn"),
("", "abc"),
("abc", ""),
("abc", "cba"),
("abc", "abc"),
("", ""),
("a", "b"),
("abc123", "abc124"),
("a" * 500, "a" * 500),
],
)
def test_symmetry(s1, s2):
# Levenshtein distance is symmetric
codeflash_output = levenshtein_distance(s1, s2) # 13.8ms -> 13.5ms (1.90% faster)
# 6. Type robustness
def test_non_string_inputs():
# Should raise TypeError if input is not string
with pytest.raises(TypeError):
levenshtein_distance(123, "abc")
with pytest.raises(TypeError):
levenshtein_distance("abc", None)
with pytest.raises(TypeError):
levenshtein_distance(["a", "b"], "ab")
with pytest.raises(TypeError):
levenshtein_distance("ab", ["a", "b"])
# 7. Stress test: Large but feasible within constraints
def test_large_strings_max_size():
# Both strings at the upper limit (1000 chars)
s1 = "a" * 1000
s2 = "b" * 1000
codeflash_output = levenshtein_distance(s1, s2) # 272ms -> 130ms (109% faster)
def test_large_strings_one_char_difference():
# 999 identical, 1 different
s1 = "a" * 999 + "b"
s2 = "a" * 1000
codeflash_output = levenshtein_distance(s1, s2) # 58.4ms -> 57.5ms (1.56% faster)
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.To test or edit this optimization locally git merge codeflash/optimize-pr945-2025-11-27T14.39.26
Click to see suggested changes
Suggested change
| x = prev[index1] | |
| y = prev[index1 + 1] | |
| z = curr[index1] | |
| min_xy = min(x, y) | |
| min_xyz = min(z, min_xy) | |
| curr[index1 + 1] = 1 + min_xyz | |
| # Avoid min() function call overhead by using direct comparisons | |
| x = prev[index1] | |
| y = prev[index1 + 1] | |
| z = curr[index1] | |
| if x < y: | |
| if x < z: | |
| curr[index1 + 1] = 1 + x | |
| else: | |
| curr[index1 + 1] = 1 + z | |
| elif y < z: | |
| curr[index1 + 1] = 1 + y | |
| else: | |
| curr[index1 + 1] = 1 + z |
The optimized code achieves a **15% speedup** through several targeted micro-optimizations that reduce computational overhead in the parsing loop:
**Key Optimizations:**
1. **Single-pass boundary search**: Instead of checking both conditions (`start_line != -1 and end_line != -1`) on every iteration, the optimized version uses `None` values and breaks immediately when both markers are found, eliminating redundant condition checks.
2. **Fast-path string matching**: Before calling the expensive `.startswith("_______")` method, it first checks if `line[0] == "_"`, avoiding the method call for most lines that don't start with underscores.
3. **Method lookup optimization**: Pulls `current_failure_lines.append` into a local variable to avoid repeated attribute lookups in the hot loop where failure lines are processed.
4. **Memory-efficient list management**: Uses `current_failure_lines.clear()` instead of creating new list objects (`current_failure_lines = []`), reducing object allocation pressure.
**Performance Impact:**
The optimizations show the most significant gains in large-scale scenarios:
- **Large failure sets**: 14.2% faster with 500 failures, 14.0% faster with 999 failures
- **Large output**: 29.2% faster for single failures with 1000 lines of output
- **Complex scenarios**: 22.3% faster with 50 cases having 10 lines each
**Hot Path Context:**
Based on the function reference, `parse_test_failures_from_stdout` is called from `parse_test_results`, which appears to be part of a test optimization pipeline. The function processes pytest stdout to extract failure information, making it performance-critical when dealing with large test suites or verbose test outputs. The 15% improvement becomes meaningful when processing hundreds of test failures in CI/CD environments or during iterative code optimization workflows.
Contributor
⚡️ Codeflash found optimizations for this PR📄 16% (0.16x) speedup for
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…25-11-27T14.49.01 ⚡️ Speed up function `parse_test_failures_from_stdout` by 16% in PR #945 (`feat/feedback-loop-for-unmatched-test-results`)
Contributor
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This PR is now faster! 🚀 @mohammedahmed18 accepted my optimizations from: |
Contributor
⚡️ Codeflash found optimizations for this PR📄 655% (6.55x) speedup for
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Codeflash Bot seems not to be a GitHub user. You need a GitHub account to be able to sign the CLA. If you have already a GitHub account, please add the email address used for this commit to your account. You have signed the CLA already but the status is still pending? Let us recheck it. |
…b.com:codeflash-ai/codeflash into feat/feedback-loop-for-unmatched-test-results
…b.com:codeflash-ai/codeflash into feat/feedback-loop-for-unmatched-test-results
Co-authored-by: codeflash-ai[bot] <148906541+codeflash-ai[bot]@users.noreply.github.com>
Contributor
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This PR is now faster! 🚀 mohammed ahmed accepted my code suggestion above. |
…b.com:codeflash-ai/codeflash into feat/feedback-loop-for-unmatched-test-results
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PR Type
Enhancement, Tests
Description
Add structured test diff generation
Capture pytest failures from stdout
Improve Levenshtein performance optimizations
Integrate mismatch handling in optimizer
Diagram Walkthrough
File Walkthrough
functions_to_optimize.py
Optimize Levenshtein distance implementationcodeflash/discovery/functions_to_optimize.py
models.py
Enrich models with test source and failures mapcodeflash/models/models.py
function_optimizer.py
Integrate diff-aware comparison into optimizer flowcodeflash/optimization/function_optimizer.py
equivalence.py
Produce structured diffs from test result comparisoncodeflash/verification/equivalence.py
parse_test_output.py
Extract pytest failure details from stdoutcodeflash/verification/parse_test_output.py
test_codeflash_capture.py
E2E test for structured diffs and mismatch handlingtests/test_codeflash_capture.py