### Question:
RateLimiterCounterMapProviderImpl implements
		RateLimiterCounterProvider { public boolean cointainKeyInActiveRL(final String key) { return getActiveRLMap().containsKey(key); }  boolean cointainKeyInActiveRL(final String key); void addActiveRL(final String key,
			final RateLimiterPolicyModel rateLimiterPolicyModel); void addActiveEffect(final String key,
			final RateLimiterPolicyModel rateLimiterPolicyModel); void removeActiveEffect(final String key); RateLimiterPolicyModel getActiveRL(final String key); void incrementRLCounter(final String key); void setRLCounter(final String key, int i); void setRLTimestamp(final String key, final Date date); void setRLActive(final String key, boolean b); void setRLEffectDuration(final String key, final Long duration); void setRLEffect(final String key, final RateLimiterStatus effect); void setRLRolloverPeriod(final String key, final Long rollover); void resetEffects(); Set<String> getActiveRLKeys();  }### Answer:
@Test public void testCointainKeyInActiveRL() { providerImpl.addActiveRL(rl_key, rateLimiterPolicyModel_1); assertTrue("No element found in activeRL map", providerImpl.cointainKeyInActiveRL(rl_key)); assertFalse("An element was found with invalid key", providerImpl.cointainKeyInActiveRL(rl_key+"1")); assertFalse("An element was found with invalid key", providerImpl.cointainKeyInActiveRL("")); }