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import (
"testing"
"github.com/router-for-me/CLIProxyAPI/v6/internal/config"
"github.com/router-for-me/CLIProxyAPI/v6/internal/registry"
)
func TestNewModelMapper(t *testing.T) {
mappings := []config.AmpModelMapping{
{From: "claude-opus-4.5", To: "claude-sonnet-4"},
{From: "gpt-5", To: "gemini-2.5-pro"},
}
mapper := NewModelMapper(mappings)
if mapper == nil {
t.Fatal("Expected non-nil mapper")
}
result := mapper.GetMappings()
if len(result) != 2 {
t.Errorf("Expected 2 mappings, got %d", len(result))
}
}
func TestNewModelMapper_Empty(t *testing.T) {
mapper := NewModelMapper(nil)
if mapper == nil {
t.Fatal("Expected non-nil mapper")
}
result := mapper.GetMappings()
if len(result) != 0 {
t.Errorf("Expected 0 mappings, got %d", len(result))
}
}
func TestModelMapper_MapModel_NoProvider(t *testing.T) {
mappings := []config.AmpModelMapping{
{From: "claude-opus-4.5", To: "claude-sonnet-4"},
}
mapper := NewModelMapper(mappings)
// Without a registered provider for the target, mapping should return empty
result := mapper.MapModel("claude-opus-4.5")
if result != "" {
t.Errorf("Expected empty result when target has no provider, got %s", result)
}
}
func TestModelMapper_MapModel_WithProvider(t *testing.T) {
// Register a mock provider for the target model
reg := registry.GetGlobalRegistry()
reg.RegisterClient("test-client", "claude", []*registry.ModelInfo{
{ID: "claude-sonnet-4", OwnedBy: "anthropic", Type: "claude"},
})
defer reg.UnregisterClient("test-client")
mappings := []config.AmpModelMapping{
{From: "claude-opus-4.5", To: "claude-sonnet-4"},
}
mapper := NewModelMapper(mappings)
// With a registered provider, mapping should work
result := mapper.MapModel("claude-opus-4.5")
if result != "claude-sonnet-4" {
t.Errorf("Expected claude-sonnet-4, got %s", result)
}
}
func TestModelMapper_MapModel_TargetWithThinkingSuffix(t *testing.T) {
reg := registry.GetGlobalRegistry()
reg.RegisterClient("test-client-thinking", "codex", []*registry.ModelInfo{
{ID: "gpt-5.2", OwnedBy: "openai", Type: "codex"},
})
defer reg.UnregisterClient("test-client-thinking")
mappings := []config.AmpModelMapping{
{From: "gpt-5.2-alias", To: "gpt-5.2(xhigh)"},
}
mapper := NewModelMapper(mappings)
result := mapper.MapModel("gpt-5.2-alias")
if result != "gpt-5.2(xhigh)" {
t.Errorf("Expected gpt-5.2(xhigh), got %s", result)
}
}
func TestModelMapper_MapModel_CaseInsensitive(t *testing.T) {
reg := registry.GetGlobalRegistry()
reg.RegisterClient("test-client2", "claude", []*registry.ModelInfo{
{ID: "claude-sonnet-4", OwnedBy: "anthropic", Type: "claude"},
})
defer reg.UnregisterClient("test-client2")
mappings := []config.AmpModelMapping{
{From: "Claude-Opus-4.5", To: "claude-sonnet-4"},
}
mapper := NewModelMapper(mappings)
// Should match case-insensitively
result := mapper.MapModel("claude-opus-4.5")
if result != "claude-sonnet-4" {
t.Errorf("Expected claude-sonnet-4, got %s", result)
}
}
func TestModelMapper_MapModel_NotFound(t *testing.T) {
mappings := []config.AmpModelMapping{
{From: "claude-opus-4.5", To: "claude-sonnet-4"},
}
mapper := NewModelMapper(mappings)
// Unknown model should return empty
result := mapper.MapModel("unknown-model")
if result != "" {
t.Errorf("Expected empty for unknown model, got %s", result)
}
}
func TestModelMapper_MapModel_EmptyInput(t *testing.T) {
mappings := []config.AmpModelMapping{
{From: "claude-opus-4.5", To: "claude-sonnet-4"},
}
mapper := NewModelMapper(mappings)
result := mapper.MapModel("")
if result != "" {
t.Errorf("Expected empty for empty input, got %s", result)
}
}
func TestModelMapper_UpdateMappings(t *testing.T) {
mapper := NewModelMapper(nil)
// Initially empty
if len(mapper.GetMappings()) != 0 {
t.Error("Expected 0 initial mappings")
}
// Update with new mappings
mapper.UpdateMappings([]config.AmpModelMapping{
{From: "model-a", To: "model-b"},
{From: "model-c", To: "model-d"},
})
result := mapper.GetMappings()
if len(result) != 2 {
t.Errorf("Expected 2 mappings after update, got %d", len(result))
}
// Update again should replace, not append
mapper.UpdateMappings([]config.AmpModelMapping{
{From: "model-x", To: "model-y"},
})
result = mapper.GetMappings()
if len(result) != 1 {
t.Errorf("Expected 1 mapping after second update, got %d", len(result))
}
}
func TestModelMapper_UpdateMappings_SkipsInvalid(t *testing.T) {
mapper := NewModelMapper(nil)
mapper.UpdateMappings([]config.AmpModelMapping{
{From: "", To: "model-b"}, // Invalid: empty from
{From: "model-a", To: ""}, // Invalid: empty to
{From: " ", To: "model-b"}, // Invalid: whitespace from
{From: "model-c", To: "model-d"}, // Valid
})
result := mapper.GetMappings()
if len(result) != 1 {
t.Errorf("Expected 1 valid mapping, got %d", len(result))
}
}
func TestModelMapper_GetMappings_ReturnsCopy(t *testing.T) {
mappings := []config.AmpModelMapping{
{From: "model-a", To: "model-b"},
}
mapper := NewModelMapper(mappings)
// Get mappings and modify the returned map
result := mapper.GetMappings()
result["new-key"] = "new-value"
// Original should be unchanged
original := mapper.GetMappings()
if len(original) != 1 {
t.Errorf("Expected original to have 1 mapping, got %d", len(original))
}
if _, exists := original["new-key"]; exists {
t.Error("Original map was modified")
}
}
func TestModelMapper_Regex_MatchBaseWithoutParens(t *testing.T) {
reg := registry.GetGlobalRegistry()
reg.RegisterClient("test-client-regex-1", "gemini", []*registry.ModelInfo{
{ID: "gemini-2.5-pro", OwnedBy: "google", Type: "gemini"},
})
defer reg.UnregisterClient("test-client-regex-1")
mappings := []config.AmpModelMapping{
{From: "^gpt-5$", To: "gemini-2.5-pro", Regex: true},
}
mapper := NewModelMapper(mappings)
// Incoming model has reasoning suffix, regex matches base, suffix is preserved
result := mapper.MapModel("gpt-5(high)")
if result != "gemini-2.5-pro(high)" {
t.Errorf("Expected gemini-2.5-pro(high), got %s", result)
}
}
func TestModelMapper_Regex_ExactPrecedence(t *testing.T) {
reg := registry.GetGlobalRegistry()
reg.RegisterClient("test-client-regex-2", "claude", []*registry.ModelInfo{
{ID: "claude-sonnet-4", OwnedBy: "anthropic", Type: "claude"},
})
reg.RegisterClient("test-client-regex-3", "gemini", []*registry.ModelInfo{
{ID: "gemini-2.5-pro", OwnedBy: "google", Type: "gemini"},
})
defer reg.UnregisterClient("test-client-regex-2")
defer reg.UnregisterClient("test-client-regex-3")
mappings := []config.AmpModelMapping{
{From: "gpt-5", To: "claude-sonnet-4"}, // exact
{From: "^gpt-5.*$", To: "gemini-2.5-pro", Regex: true}, // regex
}
mapper := NewModelMapper(mappings)
// Exact match should win over regex
result := mapper.MapModel("gpt-5")
if result != "claude-sonnet-4" {
t.Errorf("Expected claude-sonnet-4, got %s", result)
}
}
func TestModelMapper_Regex_InvalidPattern_Skipped(t *testing.T) {
// Invalid regex should be skipped and not cause panic
mappings := []config.AmpModelMapping{
{From: "(", To: "target", Regex: true},
}
mapper := NewModelMapper(mappings)
result := mapper.MapModel("anything")
if result != "" {
t.Errorf("Expected empty result due to invalid regex, got %s", result)
}
}
func TestModelMapper_Regex_CaseInsensitive(t *testing.T) {
reg := registry.GetGlobalRegistry()
reg.RegisterClient("test-client-regex-4", "claude", []*registry.ModelInfo{
{ID: "claude-sonnet-4", OwnedBy: "anthropic", Type: "claude"},
})
defer reg.UnregisterClient("test-client-regex-4")
mappings := []config.AmpModelMapping{
{From: "^CLAUDE-OPUS-.*$", To: "claude-sonnet-4", Regex: true},
}
mapper := NewModelMapper(mappings)
result := mapper.MapModel("claude-opus-4.5")
if result != "claude-sonnet-4" {
t.Errorf("Expected claude-sonnet-4, got %s", result)
}
}
func TestModelMapper_SuffixPreservation(t *testing.T) {
reg := registry.GetGlobalRegistry()
// Register test models
reg.RegisterClient("test-client-suffix", "gemini", []*registry.ModelInfo{
{ID: "gemini-2.5-pro", OwnedBy: "google", Type: "gemini"},
})
reg.RegisterClient("test-client-suffix-2", "claude", []*registry.ModelInfo{
{ID: "claude-sonnet-4", OwnedBy: "anthropic", Type: "claude"},
})
defer reg.UnregisterClient("test-client-suffix")
defer reg.UnregisterClient("test-client-suffix-2")
tests := []struct {
name string
mappings []config.AmpModelMapping
input string
want string
}{
{
name: "numeric suffix preserved",
mappings: []config.AmpModelMapping{{From: "g25p", To: "gemini-2.5-pro"}},
input: "g25p(8192)",
want: "gemini-2.5-pro(8192)",
},
{
name: "level suffix preserved",
mappings: []config.AmpModelMapping{{From: "g25p", To: "gemini-2.5-pro"}},
input: "g25p(high)",
want: "gemini-2.5-pro(high)",
},
{
name: "no suffix unchanged",
mappings: []config.AmpModelMapping{{From: "g25p", To: "gemini-2.5-pro"}},
input: "g25p",
want: "gemini-2.5-pro",
},
{
name: "config suffix takes priority",
mappings: []config.AmpModelMapping{{From: "alias", To: "gemini-2.5-pro(medium)"}},
input: "alias(high)",
want: "gemini-2.5-pro(medium)",
},
{
name: "regex with suffix preserved",
mappings: []config.AmpModelMapping{{From: "^g25.*", To: "gemini-2.5-pro", Regex: true}},
input: "g25p(8192)",
want: "gemini-2.5-pro(8192)",
},
{
name: "auto suffix preserved",
mappings: []config.AmpModelMapping{{From: "g25p", To: "gemini-2.5-pro"}},
input: "g25p(auto)",
want: "gemini-2.5-pro(auto)",
},
{
name: "none suffix preserved",
mappings: []config.AmpModelMapping{{From: "g25p", To: "gemini-2.5-pro"}},
input: "g25p(none)",
want: "gemini-2.5-pro(none)",
},
{
name: "case insensitive base lookup with suffix",
mappings: []config.AmpModelMapping{{From: "G25P", To: "gemini-2.5-pro"}},
input: "g25p(high)",
want: "gemini-2.5-pro(high)",
},
{
name: "empty suffix filtered out",
mappings: []config.AmpModelMapping{{From: "g25p", To: "gemini-2.5-pro"}},
input: "g25p()",
want: "gemini-2.5-pro",
},
{
name: "incomplete suffix treated as no suffix",
mappings: []config.AmpModelMapping{{From: "g25p(high", To: "gemini-2.5-pro"}},
input: "g25p(high",
want: "gemini-2.5-pro",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
mapper := NewModelMapper(tt.mappings)
got := mapper.MapModel(tt.input)
if got != tt.want {
t.Errorf("MapModel(%q) = %q, want %q", tt.input, got, tt.want)
}
})
}
}
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