Redis Publically Read-Only (#6018)

* multiplexed database

* ReadOnly Mode enabled

* adding in the requested changes

ivy_tests/conftest.py

@@ -1,27 +1,99 @@
+# global
 import os
 import redis
 from hypothesis import settings, HealthCheck
+from hypothesis.database import (
+    MultiplexedDatabase,
+    ReadOnlyDatabase,
+    DirectoryBasedExampleDatabase,
+)
 from hypothesis.extra.redis import RedisExampleDatabase
 from pytest import mark
 from pathlib import Path
 
-if os.getenv("REDIS_URL", default=False) and os.environ["REDIS_URL"]:
-    r = redis.Redis.from_url(
-        os.environ["REDIS_URL"], password=os.environ["REDIS_PASSWD"]
+
+hypothesis_cache = os.getcwd() + "/.hypothesis/examples/"
+redis_connect = None
+try:
+    os.makedirs(hypothesis_cache)
+except FileExistsError:
+    pass
+
+
+def is_db_available():
+    global redis_connect
+    redis_connect = redis.Redis.from_url(
+        url="redis://redis-17011.c259.us-central1-2.gce.cloud.redislabs.com:17011",
+        username="general_use",
+        password="Hypothesiscache@123",
+        max_connections=2,
+    )
+    try:
+        redis_connect.get("b")
+    except redis.exceptions.ConnectionError:
+        print("Fallback to DirectoryBasedExamples")
+        return False
+    return True
+
+
+def pytest_addoption(parser):
+    parser.addoption(
+        "--num-examples",
+        action="store",
+        default=5,
+        type=int,
+        help="set max examples generated by Hypothesis",
     )
+    parser.addoption(
+        "--deadline",
+        action="store",
+        default=500000,
+        type=int,
+        help="set deadline for testing one example",
+    )
+
+
+def pytest_configure(config):
+    profile_settings = {}
+    getopt = config.getoption
+    max_examples = getopt("--num-examples")
+    deadline = getopt("--deadline")
+    if os.getenv("REDIS_URL", default=False) and os.environ["REDIS_URL"]:
+        print("Update Database with examples !")
+        db = redis.Redis.from_url(
+            os.environ["REDIS_URL"], password=os.environ["REDIS_PASSWD"]
+        )
+        profile_settings["database"] = RedisExampleDatabase(
+            db, key_prefix=b"hypothesis-example:"
+        )
+
+    elif is_db_available():
+        print("Use Database in ReadOnly Mode with local caching !")
+        shared = RedisExampleDatabase(redis_connect, key_prefix=b"hypothesis-example:")
+        profile_settings["database"] = MultiplexedDatabase(
+            DirectoryBasedExampleDatabase(path=hypothesis_cache),
+            ReadOnlyDatabase(shared),
+        )
+
+    else:
+        print("Database unavailable, local caching only !")
+        profile_settings["database"] = DirectoryBasedExampleDatabase(
+            path=hypothesis_cache
+        )
+
+    if max_examples:
+        profile_settings["max_examples"] = max_examples
+    if deadline:
+        profile_settings["deadline"] = deadline
+
     settings.register_profile(
-        "ci_with_db",
-        database=RedisExampleDatabase(r, key_prefix=b"hypothesis-example:"),
+        "ivy_profile",
+        **profile_settings,
         suppress_health_check=(HealthCheck(3), HealthCheck(2)),
         print_blob=True,
     )
-    settings.load_profile("ci_with_db")
+    settings.load_profile("ivy_profile")
 
-else:
-    settings.register_profile(
-        "ci", suppress_health_check=(HealthCheck(3), HealthCheck(2)), print_blob=True
-    )
-    settings.load_profile("ci")
 
 skip_ids = []
 skips_path = Path(__file__).parent / "skips.txt"

ivy_tests/test_ivy/conftest.py

@@ -2,7 +2,6 @@
 import os
 import pytest
 from typing import Dict, Union, Tuple
-from hypothesis import settings
 
 # local
 from ivy import clear_backend_stack, DefaultDevice
@@ -36,17 +35,6 @@
 
 
 def pytest_configure(config):
-    num_examples = config.getoption("--num-examples")
-    deadline = config.getoption("--deadline")
-    profile_settings = {}
-    if num_examples:
-        profile_settings["max_examples"] = num_examples
-    if deadline:
-        profile_settings["deadline"] = deadline
-
-    settings.register_profile("test-profile", **profile_settings, print_blob=True)
-    settings.load_profile("test-profile")
-
     # device
     raw_value = config.getoption("--device")
     if raw_value == "all":
@@ -191,20 +179,6 @@ def pytest_addoption(parser):
     parser.addoption("--with-gradient-testing", action="store_true")
 
     parser.addoption("--no-extra-testing", action="store_true")
-    parser.addoption(
-        "--num-examples",
-        action="store",
-        default=5,
-        type=int,
-        help="set max examples generated by Hypothesis",
-    )
-    parser.addoption(
-        "--deadline",
-        action="store",
-        default=500000,
-        type=int,
-        help="set deadline for testing one example",
-    )
     parser.addoption(
         "--my_test_dump",
         action="store",