tests: add single threaded history test (#12295)

* tests: add single threaded history test

Also tidies up some existing tests to handle more model output variation

* test: add support for testing specific architectures

integration/library_models_test.go

@@ -4,7 +4,9 @@ package integration
 
 import (
 	"context"
+	"fmt"
 	"log/slog"
+	"os"
 	"testing"
 	"time"
 
@@ -20,6 +22,7 @@ func TestLibraryModelsGenerate(t *testing.T) {
 	defer cancel()
 	client, _, cleanup := InitServerConnection(ctx, t)
 	defer cleanup()
+	targetArch := os.Getenv("OLLAMA_TEST_ARCHITECTURE")
 
 	chatModels := libraryChatModels
 	for _, model := range chatModels {
@@ -30,16 +33,26 @@ func TestLibraryModelsGenerate(t *testing.T) {
 			if err := PullIfMissing(ctx, client, model); err != nil {
 				t.Fatalf("pull failed %s", err)
 			}
+			if targetArch != "" {
+				resp, err := client.Show(ctx, &api.ShowRequest{Name: model})
+				if err != nil {
+					t.Fatalf("unable to show model: %s", err)
+				}
+				arch := resp.ModelInfo["general.architecture"].(string)
+				if arch != targetArch {
+					t.Skip(fmt.Sprintf("Skipping %s architecture %s != %s", model, arch, targetArch))
+				}
+			}
 			req := api.GenerateRequest{
 				Model:     model,
-				Prompt:    "why is the sky blue?",
+				Prompt:    blueSkyPrompt,
 				KeepAlive: &api.Duration{Duration: 10 * time.Second},
 				Options: map[string]interface{}{
 					"temperature": 0.1,
 					"seed":        123,
 				},
 			}
-			anyResp := []string{"rayleigh", "scatter", "atmosphere", "nitrogen", "oxygen", "wavelength"}
+			anyResp := blueSkyExpected
 			// Special cases
 			if model == "duckdb-nsql" {
 				anyResp = []string{"select", "from"}