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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package ai.vespa.llm.clients;
import ai.vespa.llm.InferenceParameters;
import ai.vespa.llm.completion.Completion;
import ai.vespa.llm.completion.Prompt;
import ai.vespa.llm.completion.StringPrompt;
import com.yahoo.container.di.componentgraph.Provider;
import com.yahoo.container.jdisc.SecretStoreProvider;
import com.yahoo.container.jdisc.secretstore.SecretStore;
import org.junit.jupiter.api.Test;
import java.util.Arrays;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.function.BiFunction;
import java.util.stream.Collectors;
import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
public class ConfigurableLanguageModelTest {
@Test
public void testSyncGeneration() {
var prompt = StringPrompt.from("Why are ducks better than cats?");
var result = createLLM().complete(prompt, inferenceParamsWithDefaultKey());
assertEquals(1, result.size());
assertEquals("Ducks have adorable waddling walks.", result.get(0).text());
}
@Test
public void testAsyncGeneration() {
var executor = Executors.newFixedThreadPool(1);
var prompt = StringPrompt.from("Why are ducks better than cats?");
var sb = new StringBuilder();
try {
var future = createLLM(executor).completeAsync(prompt, inferenceParamsWithDefaultKey(), completion -> {
sb.append(completion.text());
}).exceptionally(exception -> Completion.FinishReason.error);
var reason = future.join();
assertTrue(future.isDone());
assertNotEquals(reason, Completion.FinishReason.error);
} finally {
executor.shutdownNow();
}
assertEquals("Ducks have adorable waddling walks.", sb.toString());
}
@Test
public void testInferenceParameters() {
var prompt = StringPrompt.from("Why are ducks better than cats?");
var params = inferenceParams(Map.of("temperature", "1.0", "maxTokens", "4"));
var result = createLLM().complete(prompt, params);
assertEquals("Random text about ducks", result.get(0).text());
}
@Test
public void testNoApiKey() {
var prompt = StringPrompt.from("");
var config = modelParams("api-key", null);
var secrets = createSecretStore(Map.of());
assertThrows(IllegalArgumentException.class, () -> {
createLLM(config, createGenerator(), secrets).complete(prompt, inferenceParams());
});
}
@Test
public void testApiKeyFromSecretStore() {
var prompt = StringPrompt.from("");
var config = modelParams("api-key-in-secret-store", null);
var secrets = createSecretStore(Map.of("api-key-in-secret-store", MockLLMClient.ACCEPTED_API_KEY));
assertDoesNotThrow(() -> { createLLM(config, createGenerator(), secrets).complete(prompt, inferenceParams()); });
}
private static String lookupParameter(String parameter, Map<String, String> params) {
return params.get(parameter);
}
private static InferenceParameters inferenceParams() {
return new InferenceParameters(s -> lookupParameter(s, Map.of()));
}
private static InferenceParameters inferenceParams(Map<String, String> params) {
return new InferenceParameters(MockLLMClient.ACCEPTED_API_KEY, s -> lookupParameter(s, params));
}
private static InferenceParameters inferenceParamsWithDefaultKey() {
return new InferenceParameters(MockLLMClient.ACCEPTED_API_KEY, s -> lookupParameter(s, Map.of()));
}
private LlmClientConfig modelParams(String apiKeySecretName, String endpoint) {
var config = new LlmClientConfig.Builder();
if (apiKeySecretName != null) {
config.apiKeySecretName(apiKeySecretName);
}
if (endpoint != null) {
config.endpoint(endpoint);
}
return config.build();
}
public static SecretStore createSecretStore(Map<String, String> secrets) {
Provider<SecretStore> secretStore = new Provider<>() {
public SecretStore get() {
return new SecretStore() {
public String getSecret(String key) {
return secrets.get(key);
}
public String getSecret(String key, int version) {
return secrets.get(key);
}
};
}
public void deconstruct() {
}
};
return secretStore.get();
}
public static BiFunction<Prompt, InferenceParameters, String> createGenerator() {
return (prompt, options) -> {
String answer = "I have no opinion on the matter";
if (prompt.asString().contains("ducks")) {
answer = "Ducks have adorable waddling walks.";
var temperature = options.getDouble("temperature");
if (temperature.isPresent() && temperature.get() > 0.5) {
answer = "Random text about ducks vs cats that makes no sense whatsoever.";
}
}
var maxTokens = options.getInt("maxTokens");
if (maxTokens.isPresent()) {
return Arrays.stream(answer.split(" ")).limit(maxTokens.get()).collect(Collectors.joining(" "));
}
return answer;
};
}
private static MockLLMClient createLLM() {
LlmClientConfig config = new LlmClientConfig.Builder().build();
return createLLM(config, null);
}
private static MockLLMClient createLLM(ExecutorService executor) {
LlmClientConfig config = new LlmClientConfig.Builder().build();
return createLLM(config, executor);
}
private static MockLLMClient createLLM(LlmClientConfig config, ExecutorService executor) {
var generator = createGenerator();
var secretStore = new SecretStoreProvider(); // throws exception on use
return createLLM(config, generator, secretStore.get(), executor);
}
private static MockLLMClient createLLM(LlmClientConfig config,
BiFunction<Prompt, InferenceParameters, String> generator,
SecretStore secretStore) {
return createLLM(config, generator, secretStore, null);
}
private static MockLLMClient createLLM(LlmClientConfig config,
BiFunction<Prompt, InferenceParameters, String> generator,
SecretStore secretStore,
ExecutorService executor) {
return new MockLLMClient(config, secretStore, generator, executor);
}
}
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