developer_context_test.go RawHistoryFolder

1package provider
2
3import "testing"
4
5func TestSystemWithDeveloperContextSeparatesStableAndDynamicText(t *testing.T) {
6	stable, dynamic, messages := systemWithDeveloperContext(Request{
7		System:        "stable instructions",
8		SystemContext: "legacy host context",
9		Messages: []Message{
10			{Role: RoleDeveloper, Content: []Content{TextBlock{Text: "dynamic host context"}}},
11			{Role: RoleUser, Content: []Content{TextBlock{Text: "user task"}}},
12		},
13	})
14	if stable != "stable instructions" {
15		t.Fatalf("stable = %q", stable)
16	}
17	if dynamic != "legacy host context\n\ndynamic host context" {
18		t.Fatalf("dynamic = %q", dynamic)
19	}
20	if len(messages) != 1 || messages[0].Role != RoleUser {
21		t.Fatalf("messages = %#v, want only the user task", messages)
22	}
23}
24
25func TestAnthropicDeveloperContextFollowsStableCacheBoundary(t *testing.T) {
26	req, err := (&anthropicClient{}).buildRequest(Request{
27		Model:  "claude-sonnet-4-5",
28		System: "stable instructions",
29		Messages: []Message{
30			{Role: RoleDeveloper, Content: []Content{TextBlock{Text: "dynamic host context"}}},
31			{Role: RoleUser, Content: []Content{TextBlock{Text: "user task"}}},
32		},
33	})
34	if err != nil {
35		t.Fatal(err)
36	}
37	if len(req.System) != 2 || req.System[0].Text != "stable instructions" || req.System[0].CacheControl == nil || req.System[1].Text != "dynamic host context" || req.System[1].CacheControl != nil {
38		t.Fatalf("system blocks = %#v", req.System)
39	}
40}
41
42func TestBedrockDeveloperContextFollowsStableCacheBoundary(t *testing.T) {
43	req, err := (&bedrockClient{region: "us-east-1"}).buildRequest(Request{
44		Model:  "anthropic.claude-sonnet-4-5-20250929-v1:0",
45		System: "stable instructions",
46		Messages: []Message{
47			{Role: RoleDeveloper, Content: []Content{TextBlock{Text: "dynamic host context"}}},
48			{Role: RoleUser, Content: []Content{TextBlock{Text: "user task"}}},
49		},
50	})
51	if err != nil {
52		t.Fatal(err)
53	}
54	if len(req.System) != 3 || req.System[0]["text"] != "stable instructions" || req.System[1]["cachePoint"] == nil || req.System[2]["text"] != "dynamic host context" {
55		t.Fatalf("system blocks = %#v", req.System)
56	}
57}