ollama/server/routes_generate_test.go

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package server
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"net/http"
"strings"
"testing"
"time"
"github.com/gin-gonic/gin"
"github.com/google/go-cmp/cmp"
"github.com/ollama/ollama/api"
"github.com/ollama/ollama/gpu"
"github.com/ollama/ollama/llm"
)
type mockRunner struct {
llm.LlamaServer
// CompletionRequest is only valid until the next call to Completion
llm.CompletionRequest
llm.CompletionResponse
}
func (m *mockRunner) Completion(_ context.Context, r llm.CompletionRequest, fn func(r llm.CompletionResponse)) error {
m.CompletionRequest = r
fn(m.CompletionResponse)
return nil
}
func (mockRunner) Tokenize(_ context.Context, s string) (tokens []int, err error) {
for range strings.Fields(s) {
tokens = append(tokens, len(tokens))
}
return
}
func newMockServer(mock *mockRunner) func(gpu.GpuInfoList, string, *llm.GGML, []string, []string, api.Options, int) (llm.LlamaServer, error) {
return func(gpus gpu.GpuInfoList, model string, ggml *llm.GGML, projectors, system []string, opts api.Options, numParallel int) (llm.LlamaServer, error) {
return mock, nil
}
}
func TestGenerateChat(t *testing.T) {
gin.SetMode(gin.TestMode)
mock := mockRunner{
CompletionResponse: llm.CompletionResponse{
Done: true,
DoneReason: "stop",
PromptEvalCount: 1,
PromptEvalDuration: 1,
EvalCount: 1,
EvalDuration: 1,
},
}
s := Server{
sched: &Scheduler{
pendingReqCh: make(chan *LlmRequest, 1),
finishedReqCh: make(chan *LlmRequest, 1),
expiredCh: make(chan *runnerRef, 1),
unloadedCh: make(chan any, 1),
loaded: make(map[string]*runnerRef),
newServerFn: newMockServer(&mock),
getGpuFn: gpu.GetGPUInfo,
getCpuFn: gpu.GetCPUInfo,
reschedDelay: 250 * time.Millisecond,
loadFn: func(req *LlmRequest, ggml *llm.GGML, gpus gpu.GpuInfoList, numParallel int) {
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// add small delay to simulate loading
time.Sleep(time.Millisecond)
req.successCh <- &runnerRef{
llama: &mock,
}
},
},
}
go s.sched.Run(context.TODO())
w := createRequest(t, s.CreateModelHandler, api.CreateRequest{
Model: "test",
Modelfile: fmt.Sprintf(`FROM %s
TEMPLATE """
{{- if .System }}System: {{ .System }} {{ end }}
{{- if .Prompt }}User: {{ .Prompt }} {{ end }}
{{- if .Response }}Assistant: {{ .Response }} {{ end }}"""
`, createBinFile(t, llm.KV{
"general.architecture": "llama",
"llama.block_count": uint32(1),
"llama.context_length": uint32(8192),
"llama.embedding_length": uint32(4096),
"llama.attention.head_count": uint32(32),
"llama.attention.head_count_kv": uint32(8),
"tokenizer.ggml.tokens": []string{""},
"tokenizer.ggml.scores": []float32{0},
"tokenizer.ggml.token_type": []int32{0},
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}, []*llm.Tensor{
{Name: "token_embd.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.attn_norm.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.ffn_down.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.ffn_gate.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.ffn_up.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.ffn_norm.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.attn_k.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.attn_output.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.attn_q.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.attn_v.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "output.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
})),
Stream: &stream,
})
if w.Code != http.StatusOK {
t.Fatalf("expected status 200, got %d", w.Code)
}
t.Run("missing body", func(t *testing.T) {
w := createRequest(t, s.ChatHandler, nil)
if w.Code != http.StatusBadRequest {
t.Errorf("expected status 400, got %d", w.Code)
}
if diff := cmp.Diff(w.Body.String(), `{"error":"model is required"}`); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
})
t.Run("missing model", func(t *testing.T) {
w := createRequest(t, s.ChatHandler, api.ChatRequest{})
if w.Code != http.StatusBadRequest {
t.Errorf("expected status 400, got %d", w.Code)
}
if diff := cmp.Diff(w.Body.String(), `{"error":"model is required"}`); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
})
t.Run("missing capabilities chat", func(t *testing.T) {
w := createRequest(t, s.CreateModelHandler, api.CreateRequest{
Model: "bert",
Modelfile: fmt.Sprintf("FROM %s", createBinFile(t, llm.KV{
"general.architecture": "bert",
"bert.pooling_type": uint32(0),
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}, []*llm.Tensor{})),
Stream: &stream,
})
if w.Code != http.StatusOK {
t.Fatalf("expected status 200, got %d", w.Code)
}
w = createRequest(t, s.ChatHandler, api.ChatRequest{
Model: "bert",
})
if w.Code != http.StatusBadRequest {
t.Errorf("expected status 400, got %d", w.Code)
}
if diff := cmp.Diff(w.Body.String(), `{"error":"\"bert\" does not support chat"}`); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
})
t.Run("load model", func(t *testing.T) {
w := createRequest(t, s.ChatHandler, api.ChatRequest{
Model: "test",
})
if w.Code != http.StatusOK {
t.Errorf("expected status 200, got %d", w.Code)
}
var actual api.ChatResponse
if err := json.NewDecoder(w.Body).Decode(&actual); err != nil {
t.Fatal(err)
}
if actual.Model != "test" {
t.Errorf("expected model test, got %s", actual.Model)
}
if !actual.Done {
t.Errorf("expected done true, got false")
}
if actual.DoneReason != "load" {
t.Errorf("expected done reason load, got %s", actual.DoneReason)
}
})
checkChatResponse := func(t *testing.T, body io.Reader, model, content string) {
t.Helper()
var actual api.ChatResponse
if err := json.NewDecoder(body).Decode(&actual); err != nil {
t.Fatal(err)
}
if actual.Model != model {
t.Errorf("expected model test, got %s", actual.Model)
}
if !actual.Done {
t.Errorf("expected done false, got true")
}
if actual.DoneReason != "stop" {
t.Errorf("expected done reason stop, got %s", actual.DoneReason)
}
if diff := cmp.Diff(actual.Message, api.Message{
Role: "assistant",
Content: content,
}); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
if actual.PromptEvalCount == 0 {
t.Errorf("expected prompt eval count > 0, got 0")
}
if actual.PromptEvalDuration == 0 {
t.Errorf("expected prompt eval duration > 0, got 0")
}
if actual.EvalCount == 0 {
t.Errorf("expected eval count > 0, got 0")
}
if actual.EvalDuration == 0 {
t.Errorf("expected eval duration > 0, got 0")
}
if actual.LoadDuration == 0 {
t.Errorf("expected load duration > 0, got 0")
}
if actual.TotalDuration == 0 {
t.Errorf("expected total duration > 0, got 0")
}
}
mock.CompletionResponse.Content = "Hi!"
t.Run("messages", func(t *testing.T) {
w := createRequest(t, s.ChatHandler, api.ChatRequest{
Model: "test",
Messages: []api.Message{
{Role: "user", Content: "Hello!"},
},
Stream: &stream,
})
if w.Code != http.StatusOK {
t.Errorf("expected status 200, got %d", w.Code)
}
if diff := cmp.Diff(mock.CompletionRequest.Prompt, "User: Hello! "); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
checkChatResponse(t, w.Body, "test", "Hi!")
})
w = createRequest(t, s.CreateModelHandler, api.CreateRequest{
Model: "test-system",
Modelfile: "FROM test\nSYSTEM You are a helpful assistant.",
})
if w.Code != http.StatusOK {
t.Fatalf("expected status 200, got %d", w.Code)
}
t.Run("messages with model system", func(t *testing.T) {
w := createRequest(t, s.ChatHandler, api.ChatRequest{
Model: "test-system",
Messages: []api.Message{
{Role: "user", Content: "Hello!"},
},
Stream: &stream,
})
if w.Code != http.StatusOK {
t.Errorf("expected status 200, got %d", w.Code)
}
if diff := cmp.Diff(mock.CompletionRequest.Prompt, "System: You are a helpful assistant. User: Hello! "); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
checkChatResponse(t, w.Body, "test-system", "Hi!")
})
mock.CompletionResponse.Content = "Abra kadabra!"
t.Run("messages with system", func(t *testing.T) {
w := createRequest(t, s.ChatHandler, api.ChatRequest{
Model: "test-system",
Messages: []api.Message{
{Role: "system", Content: "You can perform magic tricks."},
{Role: "user", Content: "Hello!"},
},
Stream: &stream,
})
if w.Code != http.StatusOK {
t.Errorf("expected status 200, got %d", w.Code)
}
if diff := cmp.Diff(mock.CompletionRequest.Prompt, "System: You can perform magic tricks. User: Hello! "); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
checkChatResponse(t, w.Body, "test-system", "Abra kadabra!")
})
t.Run("messages with interleaved system", func(t *testing.T) {
w := createRequest(t, s.ChatHandler, api.ChatRequest{
Model: "test-system",
Messages: []api.Message{
{Role: "user", Content: "Hello!"},
{Role: "assistant", Content: "I can help you with that."},
{Role: "system", Content: "You can perform magic tricks."},
{Role: "user", Content: "Help me write tests."},
},
Stream: &stream,
})
if w.Code != http.StatusOK {
t.Errorf("expected status 200, got %d", w.Code)
}
if diff := cmp.Diff(mock.CompletionRequest.Prompt, "System: You are a helpful assistant. User: Hello! Assistant: I can help you with that. System: You can perform magic tricks. User: Help me write tests. "); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
checkChatResponse(t, w.Body, "test-system", "Abra kadabra!")
})
}
func TestGenerate(t *testing.T) {
gin.SetMode(gin.TestMode)
mock := mockRunner{
CompletionResponse: llm.CompletionResponse{
Done: true,
DoneReason: "stop",
PromptEvalCount: 1,
PromptEvalDuration: 1,
EvalCount: 1,
EvalDuration: 1,
},
}
s := Server{
sched: &Scheduler{
pendingReqCh: make(chan *LlmRequest, 1),
finishedReqCh: make(chan *LlmRequest, 1),
expiredCh: make(chan *runnerRef, 1),
unloadedCh: make(chan any, 1),
loaded: make(map[string]*runnerRef),
newServerFn: newMockServer(&mock),
getGpuFn: gpu.GetGPUInfo,
getCpuFn: gpu.GetCPUInfo,
reschedDelay: 250 * time.Millisecond,
loadFn: func(req *LlmRequest, ggml *llm.GGML, gpus gpu.GpuInfoList, numParallel int) {
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// add small delay to simulate loading
time.Sleep(time.Millisecond)
req.successCh <- &runnerRef{
llama: &mock,
}
},
},
}
go s.sched.Run(context.TODO())
w := createRequest(t, s.CreateModelHandler, api.CreateRequest{
Model: "test",
Modelfile: fmt.Sprintf(`FROM %s
TEMPLATE """
{{- if .System }}System: {{ .System }} {{ end }}
{{- if .Prompt }}User: {{ .Prompt }} {{ end }}
{{- if .Response }}Assistant: {{ .Response }} {{ end }}"""
`, createBinFile(t, llm.KV{
"general.architecture": "llama",
"llama.block_count": uint32(1),
"llama.context_length": uint32(8192),
"llama.embedding_length": uint32(4096),
"llama.attention.head_count": uint32(32),
"llama.attention.head_count_kv": uint32(8),
"tokenizer.ggml.tokens": []string{""},
"tokenizer.ggml.scores": []float32{0},
"tokenizer.ggml.token_type": []int32{0},
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}, []*llm.Tensor{
{Name: "token_embd.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.attn_norm.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.ffn_down.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.ffn_gate.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.ffn_up.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.ffn_norm.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.attn_k.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.attn_output.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.attn_q.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "blk.0.attn_v.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
{Name: "output.weight", Shape: []uint64{1}, WriterTo: bytes.NewReader(make([]byte, 4))},
})),
Stream: &stream,
})
if w.Code != http.StatusOK {
t.Fatalf("expected status 200, got %d", w.Code)
}
t.Run("missing body", func(t *testing.T) {
w := createRequest(t, s.GenerateHandler, nil)
if w.Code != http.StatusBadRequest {
t.Errorf("expected status 400, got %d", w.Code)
}
if diff := cmp.Diff(w.Body.String(), `{"error":"model is required"}`); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
})
t.Run("missing model", func(t *testing.T) {
w := createRequest(t, s.GenerateHandler, api.GenerateRequest{})
if w.Code != http.StatusBadRequest {
t.Errorf("expected status 400, got %d", w.Code)
}
if diff := cmp.Diff(w.Body.String(), `{"error":"model is required"}`); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
})
t.Run("missing capabilities generate", func(t *testing.T) {
w := createRequest(t, s.CreateModelHandler, api.CreateRequest{
Model: "bert",
Modelfile: fmt.Sprintf("FROM %s", createBinFile(t, llm.KV{
"general.architecture": "bert",
"bert.pooling_type": uint32(0),
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}, []*llm.Tensor{})),
Stream: &stream,
})
if w.Code != http.StatusOK {
t.Fatalf("expected status 200, got %d", w.Code)
}
w = createRequest(t, s.GenerateHandler, api.GenerateRequest{
Model: "bert",
})
if w.Code != http.StatusBadRequest {
t.Errorf("expected status 400, got %d", w.Code)
}
if diff := cmp.Diff(w.Body.String(), `{"error":"\"bert\" does not support generate"}`); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
})
t.Run("missing capabilities suffix", func(t *testing.T) {
w := createRequest(t, s.GenerateHandler, api.GenerateRequest{
Model: "test",
Prompt: "def add(",
Suffix: " return c",
})
if w.Code != http.StatusBadRequest {
t.Errorf("expected status 400, got %d", w.Code)
}
if diff := cmp.Diff(w.Body.String(), `{"error":"test does not support insert"}`); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
})
t.Run("load model", func(t *testing.T) {
w := createRequest(t, s.GenerateHandler, api.GenerateRequest{
Model: "test",
})
if w.Code != http.StatusOK {
t.Errorf("expected status 200, got %d", w.Code)
}
var actual api.GenerateResponse
if err := json.NewDecoder(w.Body).Decode(&actual); err != nil {
t.Fatal(err)
}
if actual.Model != "test" {
t.Errorf("expected model test, got %s", actual.Model)
}
if !actual.Done {
t.Errorf("expected done true, got false")
}
if actual.DoneReason != "load" {
t.Errorf("expected done reason load, got %s", actual.DoneReason)
}
})
checkGenerateResponse := func(t *testing.T, body io.Reader, model, content string) {
t.Helper()
var actual api.GenerateResponse
if err := json.NewDecoder(body).Decode(&actual); err != nil {
t.Fatal(err)
}
if actual.Model != model {
t.Errorf("expected model test, got %s", actual.Model)
}
if !actual.Done {
t.Errorf("expected done false, got true")
}
if actual.DoneReason != "stop" {
t.Errorf("expected done reason stop, got %s", actual.DoneReason)
}
if actual.Response != content {
t.Errorf("expected response %s, got %s", content, actual.Response)
}
if actual.Context == nil {
t.Errorf("expected context not nil")
}
if actual.PromptEvalCount == 0 {
t.Errorf("expected prompt eval count > 0, got 0")
}
if actual.PromptEvalDuration == 0 {
t.Errorf("expected prompt eval duration > 0, got 0")
}
if actual.EvalCount == 0 {
t.Errorf("expected eval count > 0, got 0")
}
if actual.EvalDuration == 0 {
t.Errorf("expected eval duration > 0, got 0")
}
if actual.LoadDuration == 0 {
t.Errorf("expected load duration > 0, got 0")
}
if actual.TotalDuration == 0 {
t.Errorf("expected total duration > 0, got 0")
}
}
mock.CompletionResponse.Content = "Hi!"
t.Run("prompt", func(t *testing.T) {
w := createRequest(t, s.GenerateHandler, api.GenerateRequest{
Model: "test",
Prompt: "Hello!",
Stream: &stream,
})
if w.Code != http.StatusOK {
t.Errorf("expected status 200, got %d", w.Code)
}
if diff := cmp.Diff(mock.CompletionRequest.Prompt, "User: Hello! "); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
checkGenerateResponse(t, w.Body, "test", "Hi!")
})
w = createRequest(t, s.CreateModelHandler, api.CreateRequest{
Model: "test-system",
Modelfile: "FROM test\nSYSTEM You are a helpful assistant.",
})
if w.Code != http.StatusOK {
t.Fatalf("expected status 200, got %d", w.Code)
}
t.Run("prompt with model system", func(t *testing.T) {
w := createRequest(t, s.GenerateHandler, api.GenerateRequest{
Model: "test-system",
Prompt: "Hello!",
Stream: &stream,
})
if w.Code != http.StatusOK {
t.Errorf("expected status 200, got %d", w.Code)
}
if diff := cmp.Diff(mock.CompletionRequest.Prompt, "System: You are a helpful assistant. User: Hello! "); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
checkGenerateResponse(t, w.Body, "test-system", "Hi!")
})
mock.CompletionResponse.Content = "Abra kadabra!"
t.Run("prompt with system", func(t *testing.T) {
w := createRequest(t, s.GenerateHandler, api.GenerateRequest{
Model: "test-system",
Prompt: "Hello!",
System: "You can perform magic tricks.",
Stream: &stream,
})
if w.Code != http.StatusOK {
t.Errorf("expected status 200, got %d", w.Code)
}
if diff := cmp.Diff(mock.CompletionRequest.Prompt, "System: You can perform magic tricks. User: Hello! "); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
checkGenerateResponse(t, w.Body, "test-system", "Abra kadabra!")
})
t.Run("prompt with template", func(t *testing.T) {
w := createRequest(t, s.GenerateHandler, api.GenerateRequest{
Model: "test-system",
Prompt: "Help me write tests.",
System: "You can perform magic tricks.",
Template: `{{- if .System }}{{ .System }} {{ end }}
{{- if .Prompt }}### USER {{ .Prompt }} {{ end }}
{{- if .Response }}### ASSISTANT {{ .Response }} {{ end }}`,
Stream: &stream,
})
if w.Code != http.StatusOK {
t.Errorf("expected status 200, got %d", w.Code)
}
if diff := cmp.Diff(mock.CompletionRequest.Prompt, "You can perform magic tricks. ### USER Help me write tests. "); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
checkGenerateResponse(t, w.Body, "test-system", "Abra kadabra!")
})
w = createRequest(t, s.CreateModelHandler, api.CreateRequest{
Model: "test-suffix",
Modelfile: `FROM test
TEMPLATE """{{- if .Suffix }}<PRE> {{ .Prompt }} <SUF>{{ .Suffix }} <MID>
{{- else }}{{ .Prompt }}
{{- end }}"""`,
})
if w.Code != http.StatusOK {
t.Fatalf("expected status 200, got %d", w.Code)
}
t.Run("prompt with suffix", func(t *testing.T) {
w := createRequest(t, s.GenerateHandler, api.GenerateRequest{
Model: "test-suffix",
Prompt: "def add(",
Suffix: " return c",
})
if w.Code != http.StatusOK {
t.Errorf("expected status 200, got %d", w.Code)
}
if diff := cmp.Diff(mock.CompletionRequest.Prompt, "<PRE> def add( <SUF> return c <MID>"); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
})
t.Run("prompt without suffix", func(t *testing.T) {
w := createRequest(t, s.GenerateHandler, api.GenerateRequest{
Model: "test-suffix",
Prompt: "def add(",
})
if w.Code != http.StatusOK {
t.Errorf("expected status 200, got %d", w.Code)
}
if diff := cmp.Diff(mock.CompletionRequest.Prompt, "def add("); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
})
t.Run("raw", func(t *testing.T) {
w := createRequest(t, s.GenerateHandler, api.GenerateRequest{
Model: "test-system",
Prompt: "Help me write tests.",
Raw: true,
Stream: &stream,
})
if w.Code != http.StatusOK {
t.Errorf("expected status 200, got %d", w.Code)
}
if diff := cmp.Diff(mock.CompletionRequest.Prompt, "Help me write tests."); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
})
}