mirror of https://github.com/ledisdb/ledisdb.git
83 lines
2.7 KiB
Python
83 lines
2.7 KiB
Python
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from __future__ import with_statement
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import pytest
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from redis import exceptions
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from redis._compat import b
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multiply_script = """
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local value = redis.call('GET', KEYS[1])
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value = tonumber(value)
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return value * ARGV[1]"""
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class TestScripting(object):
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@pytest.fixture(autouse=True)
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def reset_scripts(self, r):
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r.script_flush()
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def test_eval(self, r):
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r.set('a', 2)
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# 2 * 3 == 6
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assert r.eval(multiply_script, 1, 'a', 3) == 6
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def test_evalsha(self, r):
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r.set('a', 2)
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sha = r.script_load(multiply_script)
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# 2 * 3 == 6
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assert r.evalsha(sha, 1, 'a', 3) == 6
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def test_evalsha_script_not_loaded(self, r):
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r.set('a', 2)
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sha = r.script_load(multiply_script)
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# remove the script from Redis's cache
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r.script_flush()
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with pytest.raises(exceptions.NoScriptError):
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r.evalsha(sha, 1, 'a', 3)
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def test_script_loading(self, r):
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# get the sha, then clear the cache
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sha = r.script_load(multiply_script)
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r.script_flush()
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assert r.script_exists(sha) == [False]
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r.script_load(multiply_script)
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assert r.script_exists(sha) == [True]
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def test_script_object(self, r):
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r.set('a', 2)
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multiply = r.register_script(multiply_script)
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assert not multiply.sha
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# test evalsha fail -> script load + retry
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assert multiply(keys=['a'], args=[3]) == 6
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assert multiply.sha
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assert r.script_exists(multiply.sha) == [True]
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# test first evalsha
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assert multiply(keys=['a'], args=[3]) == 6
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def test_script_object_in_pipeline(self, r):
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multiply = r.register_script(multiply_script)
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assert not multiply.sha
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pipe = r.pipeline()
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pipe.set('a', 2)
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pipe.get('a')
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multiply(keys=['a'], args=[3], client=pipe)
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# even though the pipeline wasn't executed yet, we made sure the
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# script was loaded and got a valid sha
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assert multiply.sha
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assert r.script_exists(multiply.sha) == [True]
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# [SET worked, GET 'a', result of multiple script]
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assert pipe.execute() == [True, b('2'), 6]
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# purge the script from redis's cache and re-run the pipeline
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# the multiply script object knows it's sha, so it shouldn't get
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# reloaded until pipe.execute()
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r.script_flush()
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pipe = r.pipeline()
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pipe.set('a', 2)
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pipe.get('a')
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assert multiply.sha
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multiply(keys=['a'], args=[3], client=pipe)
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assert r.script_exists(multiply.sha) == [False]
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# [SET worked, GET 'a', result of multiple script]
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assert pipe.execute() == [True, b('2'), 6]
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