package diff import (	"testing" 	"github.com/router-for-me/CLIProxyAPI/v6/internal/config") func TestComputeOpenAICompatModelsHash_Deterministic(t *testing.T) {	models := []config.OpenAICompatibilityModel{		{Name: "gpt-4", Alias: "gpt4"},		{Name: "gpt-3.5-turbo"},	}	hash1 := ComputeOpenAICompatModelsHash(models)	hash2 := ComputeOpenAICompatModelsHash(models)	if hash1 == "" {		t.Fatal("hash should not be empty")	}	if hash1 != hash2 {		t.Fatalf("hash should be deterministic, got %s vs %s", hash1, hash2)	}	changed := ComputeOpenAICompatModelsHash([]config.OpenAICompatibilityModel{{Name: "gpt-4"}, {Name: "gpt-4.1"}})	if hash1 == changed {		t.Fatal("hash should change when model list changes")	}} func TestComputeOpenAICompatModelsHash_NormalizesAndDedups(t *testing.T) {	a := []config.OpenAICompatibilityModel{		{Name: "gpt-4", Alias: "gpt4"},		{Name: " "},		{Name: "GPT-4", Alias: "GPT4"},		{Alias: "a1"},	}	b := []config.OpenAICompatibilityModel{		{Alias: "A1"},		{Name: "gpt-4", Alias: "gpt4"},	}	h1 := ComputeOpenAICompatModelsHash(a)	h2 := ComputeOpenAICompatModelsHash(b)	if h1 == "" || h2 == "" {		t.Fatal("expected non-empty hashes for non-empty model sets")	}	if h1 != h2 {		t.Fatalf("expected normalized hashes to match, got %s / %s", h1, h2)	}} func TestComputeVertexCompatModelsHash_DifferentInputs(t *testing.T) {	models := []config.VertexCompatModel{{Name: "gemini-pro", Alias: "pro"}}	hash1 := ComputeVertexCompatModelsHash(models)	hash2 := ComputeVertexCompatModelsHash([]config.VertexCompatModel{{Name: "gemini-1.5-pro", Alias: "pro"}})	if hash1 == "" || hash2 == "" {		t.Fatal("hashes should not be empty for non-empty models")	}	if hash1 == hash2 {		t.Fatal("hash should differ when model content differs")	}} func TestComputeVertexCompatModelsHash_IgnoresBlankAndOrder(t *testing.T) {	a := []config.VertexCompatModel{		{Name: "m1", Alias: "a1"},		{Name: " "},		{Name: "M1", Alias: "A1"},	}	b := []config.VertexCompatModel{		{Name: "m1", Alias: "a1"},	}	if h1, h2 := ComputeVertexCompatModelsHash(a), ComputeVertexCompatModelsHash(b); h1 == "" || h1 != h2 {		t.Fatalf("expected same hash ignoring blanks/dupes, got %q / %q", h1, h2)	}} func TestComputeClaudeModelsHash_Empty(t *testing.T) {	if got := ComputeClaudeModelsHash(nil); got != "" {		t.Fatalf("expected empty hash for nil models, got %q", got)	}	if got := ComputeClaudeModelsHash([]config.ClaudeModel{}); got != "" {		t.Fatalf("expected empty hash for empty slice, got %q", got)	}} func TestComputeClaudeModelsHash_IgnoresBlankAndDedup(t *testing.T) {	a := []config.ClaudeModel{		{Name: "m1", Alias: "a1"},		{Name: " "},		{Name: "M1", Alias: "A1"},	}	b := []config.ClaudeModel{		{Name: "m1", Alias: "a1"},	}	if h1, h2 := ComputeClaudeModelsHash(a), ComputeClaudeModelsHash(b); h1 == "" || h1 != h2 {		t.Fatalf("expected same hash ignoring blanks/dupes, got %q / %q", h1, h2)	}} func TestComputeExcludedModelsHash_Normalizes(t *testing.T) {	hash1 := ComputeExcludedModelsHash([]string{" A ", "b", "a"})	hash2 := ComputeExcludedModelsHash([]string{"a", " b", "A"})	if hash1 == "" || hash2 == "" {		t.Fatal("hash should not be empty for non-empty input")	}	if hash1 != hash2 {		t.Fatalf("hash should be order/space insensitive for same multiset, got %s vs %s", hash1, hash2)	}	hash3 := ComputeExcludedModelsHash([]string{"c"})	if hash1 == hash3 {		t.Fatal("hash should differ for different normalized sets")	}} func TestComputeOpenAICompatModelsHash_Empty(t *testing.T) {	if got := ComputeOpenAICompatModelsHash(nil); got != "" {		t.Fatalf("expected empty hash for nil input, got %q", got)	}	if got := ComputeOpenAICompatModelsHash([]config.OpenAICompatibilityModel{}); got != "" {		t.Fatalf("expected empty hash for empty slice, got %q", got)	}	if got := ComputeOpenAICompatModelsHash([]config.OpenAICompatibilityModel{{Name: " "}, {Alias: ""}}); got != "" {		t.Fatalf("expected empty hash for blank models, got %q", got)	}} func TestComputeVertexCompatModelsHash_Empty(t *testing.T) {	if got := ComputeVertexCompatModelsHash(nil); got != "" {		t.Fatalf("expected empty hash for nil input, got %q", got)	}	if got := ComputeVertexCompatModelsHash([]config.VertexCompatModel{}); got != "" {		t.Fatalf("expected empty hash for empty slice, got %q", got)	}	if got := ComputeVertexCompatModelsHash([]config.VertexCompatModel{{Name: " "}}); got != "" {		t.Fatalf("expected empty hash for blank models, got %q", got)	}} func TestComputeExcludedModelsHash_Empty(t *testing.T) {	if got := ComputeExcludedModelsHash(nil); got != "" {		t.Fatalf("expected empty hash for nil input, got %q", got)	}	if got := ComputeExcludedModelsHash([]string{}); got != "" {		t.Fatalf("expected empty hash for empty slice, got %q", got)	}	if got := ComputeExcludedModelsHash([]string{"  ", ""}); got != "" {		t.Fatalf("expected empty hash for whitespace-only entries, got %q", got)	}} func TestComputeClaudeModelsHash_Deterministic(t *testing.T) {	models := []config.ClaudeModel{{Name: "a", Alias: "A"}, {Name: "b"}}	h1 := ComputeClaudeModelsHash(models)	h2 := ComputeClaudeModelsHash(models)	if h1 == "" || h1 != h2 {		t.Fatalf("expected deterministic hash, got %s / %s", h1, h2)	}	if h3 := ComputeClaudeModelsHash([]config.ClaudeModel{{Name: "a"}}); h3 == h1 {		t.Fatalf("expected different hash when models change, got %s", h3)	}}