Only load supported models on new engine (#11362)

* Only load supported models on new engine

Verify the model is supported before trying to load

* int: testcase for all library models

integration/library_models_test.go

@@ -0,0 +1,57 @@
+//go:build integration && library
+
+package integration
+
+import (
+	"context"
+	"log/slog"
+	"testing"
+	"time"
+
+	"github.com/ollama/ollama/api"
+)
+
+// First run of this scenario on a target system will take a long time to download
+// ~1.5TB of models.  Set a sufficiently large -timeout for your network speed
+func TestLibraryModelsGenerate(t *testing.T) {
+	softTimeout, hardTimeout := getTimeouts(t)
+	slog.Info("Setting timeouts", "soft", softTimeout, "hard", hardTimeout)
+	ctx, cancel := context.WithTimeout(context.Background(), hardTimeout)
+	defer cancel()
+	client, _, cleanup := InitServerConnection(ctx, t)
+	defer cleanup()
+
+	chatModels := libraryChatModels
+	for _, model := range chatModels {
+		t.Run(model, func(t *testing.T) {
+			if time.Now().Sub(started) > softTimeout {
+				t.Skip("skipping remaining tests to avoid excessive runtime")
+			}
+			if err := PullIfMissing(ctx, client, model); err != nil {
+				t.Fatalf("pull failed %s", err)
+			}
+			req := api.GenerateRequest{
+				Model:     model,
+				Prompt:    "why is the sky blue?",
+				KeepAlive: &api.Duration{Duration: 10 * time.Second},
+				Options: map[string]interface{}{
+					"temperature": 0.1,
+					"seed":        123,
+				},
+			}
+			anyResp := []string{"rayleigh", "scatter", "atmosphere", "nitrogen", "oxygen", "wavelength"}
+			// Special cases
+			if model == "duckdb-nsql" {
+				anyResp = []string{"select", "from"}
+			} else if model == "granite3-guardian" || model == "shieldgemma" || model == "llama-guard3" || model == "bespoke-minicheck" {
+				anyResp = []string{"yes", "no", "safe", "unsafe"}
+			} else if model == "openthinker" || model == "nexusraven" {
+				anyResp = []string{"plugin", "im_sep", "components", "function call"}
+			} else if model == "starcoder" || model == "starcoder2" || model == "magicoder" || model == "deepseek-coder" {
+				req.Prompt = "def fibonacci():"
+				anyResp = []string{"f(n)", "sequence", "n-1", "main()", "__main__", "while"}
+			}
+			DoGenerate(ctx, t, client, req, anyResp, 120*time.Second, 30*time.Second)
+		})
+	}
+}