first commit

core/schemas/json_native_test.go

@@ -0,0 +1,92 @@
+package schemas
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// Test helper types for ConvertViaJSON tests
+type convertTestTarget struct {
+	Type string `json:"type"`
+	Name string `json:"name,omitempty"`
+}
+
+type convertTestSource struct {
+	Name  string `json:"name"`
+	Value int    `json:"value"`
+}
+
+type convertTestDest struct {
+	Name  string `json:"name"`
+	Value int    `json:"value"`
+}
+
+func TestConvertViaJSON(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    interface{}
+		validate func(t *testing.T)
+	}{
+		{
+			name:  "map_to_struct",
+			input: map[string]interface{}{"type": "json_object", "name": "test_format"},
+			validate: func(t *testing.T) {
+				result, err := ConvertViaJSON[convertTestTarget](map[string]interface{}{"type": "json_object", "name": "test_format"})
+				require.NoError(t, err)
+				assert.Equal(t, "json_object", result.Type)
+				assert.Equal(t, "test_format", result.Name)
+			},
+		},
+		{
+			name: "struct_to_struct",
+			validate: func(t *testing.T) {
+				src := convertTestSource{Name: "hello", Value: 42}
+				result, err := ConvertViaJSON[convertTestDest](src)
+				require.NoError(t, err)
+				assert.Equal(t, "hello", result.Name)
+				assert.Equal(t, 42, result.Value)
+			},
+		},
+		{
+			name: "slice_conversion",
+			validate: func(t *testing.T) {
+				src := []interface{}{
+					map[string]interface{}{"type": "image", "name": "a"},
+					map[string]interface{}{"type": "video", "name": "b"},
+				}
+				result, err := ConvertViaJSON[[]convertTestTarget](src)
+				require.NoError(t, err)
+				require.Len(t, result, 2)
+				assert.Equal(t, "image", result[0].Type)
+				assert.Equal(t, "a", result[0].Name)
+				assert.Equal(t, "video", result[1].Type)
+				assert.Equal(t, "b", result[1].Name)
+			},
+		},
+		{
+			name: "invalid_input_returns_error",
+			validate: func(t *testing.T) {
+				result, err := ConvertViaJSON[convertTestTarget](42)
+				require.Error(t, err)
+				assert.Equal(t, convertTestTarget{}, result)
+			},
+		},
+		{
+			name: "nil_input",
+			validate: func(t *testing.T) {
+				result, err := ConvertViaJSON[convertTestTarget](nil)
+				// nil marshals to "null" which unmarshals to zero struct — no error
+				require.NoError(t, err)
+				assert.Equal(t, convertTestTarget{}, result)
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			tt.validate(t)
+		})
+	}
+}