ollama source for Momentry Core verification

model/renderers/nemotron3nano_test.go

@@ -0,0 +1,54 @@
+package renderers
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+
+	"github.com/ollama/ollama/api"
+)
+
+func TestNemotron3NanoRenderer_Images(t *testing.T) {
+	tests := []struct {
+		name     string
+		msgs     []api.Message
+		expected string
+	}{
+		{
+			name: "single image inserts placeholder",
+			msgs: []api.Message{
+				{Role: "user", Content: "Describe this image.", Images: []api.ImageData{api.ImageData("img1")}},
+			},
+			expected: "\n\n\n<|im_start|>system\n<|im_end|>\n\n<|im_start|>user\n[img-0] Describe this image.<|im_end|>\n\n<|im_start|>assistant\n<think>\n",
+		},
+		{
+			name: "generic image placeholder is rewritten",
+			msgs: []api.Message{
+				{Role: "user", Content: "[img]Describe this image.", Images: []api.ImageData{api.ImageData("img1")}},
+			},
+			expected: "\n\n\n<|im_start|>system\n<|im_end|>\n\n<|im_start|>user\n[img-0]Describe this image.<|im_end|>\n\n<|im_start|>assistant\n<think>\n",
+		},
+		{
+			name: "image offsets increment across messages",
+			msgs: []api.Message{
+				{Role: "user", Content: "Describe the first image.", Images: []api.ImageData{api.ImageData("img1")}},
+				{Role: "assistant", Content: "It shows something."},
+				{Role: "user", Content: "Compare these.", Images: []api.ImageData{api.ImageData("img2"), api.ImageData("img3")}},
+			},
+			expected: "\n\n\n<|im_start|>system\n<|im_end|>\n\n<|im_start|>user\n[img-0] Describe the first image.<|im_end|>\n<|im_start|>assistant\n<think></think>It shows something.<|im_end|>\n<|im_start|>user\n[img-1][img-2] Compare these.<|im_end|>\n\n<|im_start|>assistant\n<think>\n",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			renderer := &Nemotron3NanoRenderer{}
+			rendered, err := renderer.Render(tt.msgs, nil, nil)
+			if err != nil {
+				t.Fatal(err)
+			}
+			if diff := cmp.Diff(tt.expected, rendered); diff != "" {
+				t.Fatalf("mismatch (-want +got):\n%s", diff)
+			}
+		})
+	}
+}