import numpy as np
# imports
import pytest  # used for our unit tests
from keras.src.saving.saving_lib import NpzIOStore

# unit tests

# --- Basic Test Cases ---

def test_make_creates_empty_dict_with_path():
    # Test that make creates an empty dict at the given path
    store = NpzIOStore("dummy.npz", mode="w")
    codeflash_output = store.make("foo"); result = codeflash_output

def test_make_returns_same_dict_reference():
    # Test that repeated calls to make with the same path overwrite and return new dict
    store = NpzIOStore("dummy.npz", mode="w")
    codeflash_output = store.make("bar"); d1 = codeflash_output
    d1["x"] = 1
    codeflash_output = store.make("bar"); d2 = codeflash_output

def test_make_with_empty_path_creates_root():
    # Test that make with empty path creates __root__ key
    store = NpzIOStore("dummy.npz", mode="w")
    codeflash_output = store.make(""); result = codeflash_output

def test_make_with_none_path_creates_root():
    # Test that make with None path creates __root__ key
    store = NpzIOStore("dummy.npz", mode="w")
    codeflash_output = store.make(None); result = codeflash_output

def test_make_with_metadata_argument_ignored():
    # Test that metadata argument is ignored and does not affect result
    store = NpzIOStore("dummy.npz", mode="w")
    codeflash_output = store.make("baz", metadata={"foo": "bar"}); result = codeflash_output

# --- Edge Test Cases ---

def test_make_with_existing_key_overwrites():
    # Test that make overwrites existing key with new empty dict
    store = NpzIOStore("dummy.npz", mode="w")
    store.contents["dup"] = {"a": 1}
    codeflash_output = store.make("dup"); result = codeflash_output

def test_make_with_special_characters_in_path():
    # Test that make works with special characters in path
    store = NpzIOStore("dummy.npz", mode="w")
    special_path = "spécial/路径/!@#"
    codeflash_output = store.make(special_path); result = codeflash_output

def test_make_with_integer_path():
    # Test that make works with non-string path (e.g., integer)
    store = NpzIOStore("dummy.npz", mode="w")
    codeflash_output = store.make(123); result = codeflash_output

def test_make_with_tuple_path():
    # Test that make works with tuple path
    store = NpzIOStore("dummy.npz", mode="w")
    path = ("a", "b")
    codeflash_output = store.make(path); result = codeflash_output

def test_make_with_falsey_nonempty_path():
    # Test that make with path=0 creates a key "0" (since 0 is falsey but not empty string)
    store = NpzIOStore("dummy.npz", mode="w")
    codeflash_output = store.make(0); result = codeflash_output

def test_make_does_not_affect_other_keys():
    # Test that make does not modify other keys in contents
    store = NpzIOStore("dummy.npz", mode="w")
    store.contents["a"] = {"val": 1}
    store.contents["b"] = {"val": 2}
    store.make("c")

def test_make_with_large_key():
    # Test that make works with a very long string as key
    store = NpzIOStore("dummy.npz", mode="w")
    long_key = "x" * 500
    codeflash_output = store.make(long_key); result = codeflash_output

# --- Large Scale Test Cases ---

def test_make_many_unique_keys():
    # Test that make can handle many unique keys
    store = NpzIOStore("dummy.npz", mode="w")
    for i in range(1000):
        codeflash_output = store.make(f"key_{i}"); result = codeflash_output

def test_make_overwrite_many_times():
    # Test that repeatedly overwriting the same key always yields empty dict
    store = NpzIOStore("dummy.npz", mode="w")
    for i in range(1000):
        codeflash_output = store.make("repeat"); result = codeflash_output

def test_make_with_large_keys_and_values():
    # Test that make can handle large keys and does not leak references
    store = NpzIOStore("dummy.npz", mode="w")
    # Add 500 large keys, then overwrite them
    for i in range(500):
        key = "k" * (i+1)
        store.make(key)
    for i in range(500):
        key = "k" * (i+1)
        codeflash_output = store.make(key); result = codeflash_output

def test_make_with_various_types_as_keys():
    # Test that make can handle various hashable types as keys
    store = NpzIOStore("dummy.npz", mode="w")
    keys = [
        42,
        3.14,
        (1, 2, 3),
        frozenset([1, 2]),
        True,
        b"bytes",
    ]
    for key in keys:
        codeflash_output = store.make(key); result = codeflash_output

def test_make_scalability_with_large_dict():
    # Test that make does not slow down or error with a large contents dict
    store = NpzIOStore("dummy.npz", mode="w")
    for i in range(999):
        store.contents[f"pre_{i}"] = {"dummy": i}
    codeflash_output = store.make("final_key"); result = codeflash_output
    # Ensure pre-existing keys are untouched
    for i in range(999):
        pass
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.

import io

import numpy as np
# imports
import pytest  # used for our unit tests
from keras.src.saving.saving_lib import NpzIOStore

# unit tests

# Helper to create an NpzIOStore in write mode for tests
@pytest.fixture
def store():
    # Use a dummy root_path since we won't be writing to disk
    return NpzIOStore("dummy.npz", mode="w")

# ---------------------------
# 1. BASIC TEST CASES
# ---------------------------

def test_make_creates_new_key(store):
    # Should create an empty dict at the given path
    codeflash_output = store.make("foo"); result = codeflash_output

def test_make_returns_same_dict_on_repeat(store):
    # Should overwrite existing key with new empty dict each time
    codeflash_output = store.make("bar"); d1 = codeflash_output
    d1["a"] = 1
    codeflash_output = store.make("bar"); d2 = codeflash_output

def test_make_with_empty_path_creates_root(store):
    # Should create a special __root__ key for empty path
    codeflash_output = store.make(""); result = codeflash_output

def test_make_with_none_path_creates_root(store):
    # Should treat None as empty and create __root__
    codeflash_output = store.make(None); result = codeflash_output

def test_make_with_metadata_ignored(store):
    # Should ignore metadata and still create empty dict
    codeflash_output = store.make("baz", metadata={"foo": "bar"}); result = codeflash_output

def test_make_multiple_keys(store):
    # Should create multiple keys independently
    codeflash_output = store.make("a"); d1 = codeflash_output
    codeflash_output = store.make("b"); d2 = codeflash_output

# ---------------------------
# 2. EDGE TEST CASES
# ---------------------------

def test_make_with_special_characters(store):
    # Should allow keys with special characters
    key = "weird!@#$%^&*()_+-=|\\/?><,.;:'\"[]{}"
    codeflash_output = store.make(key); result = codeflash_output

def test_make_with_long_key(store):
    # Should allow long keys up to a reasonable length
    key = "x" * 255
    codeflash_output = store.make(key); result = codeflash_output

def test_make_overwrites_existing_key(store):
    # Should overwrite existing key with new empty dict
    codeflash_output = store.make("dup"); d1 = codeflash_output
    d1["foo"] = 123
    codeflash_output = store.make("dup"); d2 = codeflash_output

def test_make_with_integer_path(store):
    # Should convert integer path to string and use as key
    codeflash_output = store.make(123); result = codeflash_output

def test_make_with_tuple_path(store):
    # Should allow tuple as key
    key = (1, 2, 3)
    codeflash_output = store.make(key); result = codeflash_output

def test_make_with_falsey_nonempty_path(store):
    # Should treat 0 as a valid key, not as empty
    codeflash_output = store.make(0); result = codeflash_output

def test_make_with_path_collision_with_root(store):
    # Should allow "__root__" as a user key (distinct from empty path)
    codeflash_output = store.make("__root__"); result = codeflash_output
    # If we now call with empty path, it should overwrite __root__
    codeflash_output = store.make(""); result2 = codeflash_output

def test_make_with_path_as_bytes(store):
    # Should allow bytes as key
    key = b"byteskey"
    codeflash_output = store.make(key); result = codeflash_output

# ---------------------------
# 3. LARGE SCALE TEST CASES
# ---------------------------

def test_make_many_keys(store):
    # Should handle creating many keys (stress test)
    n = 1000
    for i in range(n):
        k = f"key_{i}"
        codeflash_output = store.make(k); result = codeflash_output

def test_make_many_keys_and_overwrite(store):
    # Should overwrite all keys and ensure all are empty dicts
    n = 500
    for i in range(n):
        k = f"key_{i}"
        codeflash_output = store.make(k); d = codeflash_output
        d["foo"] = i
    # Now overwrite all
    for i in range(n):
        k = f"key_{i}"
        codeflash_output = store.make(k); d = codeflash_output

def test_make_with_large_key_size(store):
    # Should handle a very large string as key
    key = "a" * 1000
    codeflash_output = store.make(key); result = codeflash_output

def test_make_with_large_metadata(store):
    # Should ignore large metadata and still create empty dict
    metadata = {str(i): i for i in range(1000)}
    codeflash_output = store.make("bigmeta", metadata=metadata); result = codeflash_output

def test_make_with_large_number_of_root_calls(store):
    # Should allow repeated calls to make with empty path
    for _ in range(100):
        codeflash_output = store.make(""); result = codeflash_output

# ---------------------------
# 4. NEGATIVE AND TYPE ERROR CASES
# ---------------------------

def test_make_with_unhashable_key_raises(store):
    # Should raise TypeError if key is unhashable (e.g., list)
    with pytest.raises(TypeError):
        store.make([1, 2, 3])

def test_make_with_dict_key_raises(store):
    # Should raise TypeError if key is a dict (unhashable)
    with pytest.raises(TypeError):
        store.make({"a": 1})

def test_make_with_set_key_raises(store):
    # Should raise TypeError if key is a set (unhashable)
    with pytest.raises(TypeError):
        store.make(set([1, 2, 3]))

def test_make_with_path_none_and_metadata(store):
    # Should create __root__ even if metadata is present and path is None
    codeflash_output = store.make(None, metadata={"foo": "bar"}); result = codeflash_output
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.