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|
package llm
import (
"context"
"encoding/json"
"io"
"net/http"
"net/http/httptest"
"strings"
"testing"
)
func TestAnthropicChat_Success(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodPost {
t.Fatalf("expected POST, got %s", r.Method)
}
if !strings.HasSuffix(r.URL.Path, "/messages") {
t.Fatalf("expected /messages endpoint, got %s", r.URL.Path)
}
// Check headers
if r.Header.Get("x-api-key") != "test-key" {
t.Fatalf("expected x-api-key header")
}
if r.Header.Get("anthropic-version") != "2023-06-01" {
t.Fatalf("expected anthropic-version header")
}
// Verify request body
var req anthropicChatRequest
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
t.Fatalf("failed to decode request: %v", err)
}
if req.Model != "claude-3-5-sonnet-20241022" {
t.Fatalf("expected model claude-3-5-sonnet-20241022, got %s", req.Model)
}
if len(req.Messages) != 1 {
t.Fatalf("expected 1 message, got %d", len(req.Messages))
}
if req.Messages[0].Role != "user" {
t.Fatalf("expected user role, got %s", req.Messages[0].Role)
}
if req.Messages[0].Content != "Hello" {
t.Fatalf("expected content 'Hello', got '%s'", req.Messages[0].Content)
}
// Send response
resp := anthropicChatResponse{
ID: "msg-123",
Type: "message",
StopReason: "end_turn",
Content: []struct {
Type string `json:"type"`
Text string `json:"text"`
}{
{Type: "text", Text: "Hi there!"},
},
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(resp)
}))
defer srv.Close()
c := newAnthropic(srv.URL, "claude-3-5-sonnet-20241022", "test-key", nil).(anthropicClient)
response, err := c.Chat(context.Background(), []Message{
{Role: "user", Content: "Hello"},
})
if err != nil {
t.Fatalf("Chat failed: %v", err)
}
if response != "Hi there!" {
t.Fatalf("expected 'Hi there!', got '%s'", response)
}
}
func TestAnthropicChat_NoAPIKey(t *testing.T) {
c := newAnthropic("https://api.anthropic.com/v1", "claude-3-5-sonnet-20241022", "", nil)
_, err := c.Chat(context.Background(), []Message{
{Role: "user", Content: "Hello"},
})
if err == nil {
t.Fatalf("expected error for missing API key")
}
if !strings.Contains(err.Error(), "missing Anthropic API key") {
t.Fatalf("expected 'missing Anthropic API key', got '%s'", err.Error())
}
}
func TestAnthropicChat_APIError(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusUnauthorized)
resp := anthropicChatResponse{
Error: &struct {
Type string `json:"type"`
Message string `json:"message"`
}{
Type: "authentication_error",
Message: "Invalid API key",
},
}
json.NewEncoder(w).Encode(resp)
}))
defer srv.Close()
c := newAnthropic(srv.URL, "claude-3-5-sonnet-20241022", "invalid-key", nil).(anthropicClient)
_, err := c.Chat(context.Background(), []Message{
{Role: "user", Content: "Hello"},
})
if err == nil {
t.Fatalf("expected error for API error response")
}
if !strings.Contains(err.Error(), "Invalid API key") {
t.Fatalf("expected 'Invalid API key' in error, got '%s'", err.Error())
}
}
func TestAnthropicChat_EmptyResponse(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
resp := anthropicChatResponse{
ID: "msg-123",
Type: "message",
StopReason: "end_turn",
Content: []struct {
Type string `json:"type"`
Text string `json:"text"`
}{},
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(resp)
}))
defer srv.Close()
c := newAnthropic(srv.URL, "claude-3-5-sonnet-20241022", "test-key", nil).(anthropicClient)
_, err := c.Chat(context.Background(), []Message{
{Role: "user", Content: "Hello"},
})
if err == nil {
t.Fatalf("expected error for empty content")
}
if !strings.Contains(err.Error(), "no content returned") {
t.Fatalf("expected 'no content returned', got '%s'", err.Error())
}
}
func TestAnthropicChat_WithTemperature(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var req anthropicChatRequest
json.NewDecoder(r.Body).Decode(&req)
if req.Temperature == nil || *req.Temperature != 0.5 {
t.Fatalf("expected temperature 0.5, got %v", req.Temperature)
}
resp := anthropicChatResponse{
ID: "msg-123",
Type: "message",
StopReason: "end_turn",
Content: []struct {
Type string `json:"type"`
Text string `json:"text"`
}{
{Type: "text", Text: "Response"},
},
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(resp)
}))
defer srv.Close()
c := newAnthropic(srv.URL, "claude-3-5-sonnet-20241022", "test-key", nil).(anthropicClient)
_, err := c.Chat(context.Background(), []Message{
{Role: "user", Content: "Hello"},
}, WithTemperature(0.5))
if err != nil {
t.Fatalf("Chat failed: %v", err)
}
}
func TestAnthropicStream_Success(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/event-stream")
// Send streaming response
streamEvents := []string{
`data: {"type":"message_start","message":{"id":"msg-123","type":"message"}}`,
`data: {"type":"content_block_start","content_block":{"type":"text"}}`,
`data: {"type":"content_block_delta","delta":{"type":"text_delta","text":"Hello"}}`,
`data: {"type":"content_block_delta","delta":{"type":"text_delta","text":" "}}`,
`data: {"type":"content_block_delta","delta":{"type":"text_delta","text":"world"}}`,
`data: {"type":"message_stop"}`,
}
for _, event := range streamEvents {
io.WriteString(w, event+"\n")
}
}))
defer srv.Close()
c := newAnthropic(srv.URL, "claude-3-5-sonnet-20241022", "test-key", nil)
streamer, ok := c.(Streamer)
if !ok {
t.Fatalf("Anthropic client does not implement Streamer interface")
}
var chunks []string
err := streamer.ChatStream(context.Background(), []Message{
{Role: "user", Content: "Say hello"},
}, func(chunk string) {
chunks = append(chunks, chunk)
})
if err != nil {
t.Fatalf("ChatStream failed: %v", err)
}
if len(chunks) != 3 {
t.Fatalf("expected 3 chunks, got %d", len(chunks))
}
if chunks[0] != "Hello" || chunks[1] != " " || chunks[2] != "world" {
t.Fatalf("unexpected chunks: %v", chunks)
}
}
func TestAnthropicStream_NoAPIKey(t *testing.T) {
c := newAnthropic("https://api.anthropic.com/v1", "claude-3-5-sonnet-20241022", "", nil)
streamer, ok := c.(Streamer)
if !ok {
t.Fatalf("Anthropic client does not implement Streamer interface")
}
err := streamer.ChatStream(context.Background(), []Message{
{Role: "user", Content: "Hello"},
}, func(chunk string) {})
if err == nil {
t.Fatalf("expected error for missing API key")
}
if !strings.Contains(err.Error(), "missing Anthropic API key") {
t.Fatalf("expected 'missing Anthropic API key', got '%s'", err.Error())
}
}
func TestAnthropicClient_Name(t *testing.T) {
c := newAnthropic("https://api.anthropic.com/v1", "claude-3-5-sonnet-20241022", "test-key", nil)
if c.Name() != "anthropic" {
t.Fatalf("expected 'anthropic', got '%s'", c.Name())
}
}
func TestAnthropicClient_DefaultModel(t *testing.T) {
model := "claude-3-opus-20250219"
c := newAnthropic("https://api.anthropic.com/v1", model, "test-key", nil).(anthropicClient)
if c.DefaultModel() != model {
t.Fatalf("expected '%s', got '%s'", model, c.DefaultModel())
}
}
func TestAnthropicClient_DefaultBaseURL(t *testing.T) {
c := newAnthropic("", "claude-3-5-sonnet-20241022", "test-key", nil).(anthropicClient)
if c.baseURL != "https://api.anthropic.com/v1" {
t.Fatalf("expected default base URL, got '%s'", c.baseURL)
}
}
func TestAnthropicClient_DefaultModel_Empty(t *testing.T) {
c := newAnthropic("https://api.anthropic.com/v1", "", "test-key", nil).(anthropicClient)
if c.defaultModel != "claude-3-5-sonnet-20241022" {
t.Fatalf("expected default model, got '%s'", c.defaultModel)
}
}
|
