event_test.go

package stripe

import (
	"testing"

	assert "github.com/stretchr/testify/require"
)

func TestGetObjectValue(t *testing.T) {
	event := &Event{
		Data: &EventData{
			Object: map[string]interface{}{
				"top_level_key": "top_level",
				"integer_key":   123,
				"map": map[string]interface{}{
					"nested_key": "nested",
				},
				"slice": []interface{}{
					"index-0",
					"index-1",
					"index-2",
				},
				"slice_of_maps": []interface{}{
					map[string]interface{}{
						"slice_nested_key": "slice_nested",
					},
				},
			},
		},
	}

	assert.Equal(t, "top_level", event.GetObjectValue("top_level_key"))

	// Check that it coerces non-string values into strings (this behavior is
	// somewhat questionable, but I'm going with how it already works)
	assert.Equal(t, "123", event.GetObjectValue("integer_key"))

	assert.Equal(t, "nested", event.GetObjectValue("map", "nested_key"))
	assert.Equal(t, "index-1", event.GetObjectValue("slice", "1"))
	assert.Equal(t, "slice_nested",
		event.GetObjectValue("slice_of_maps", "0", "slice_nested_key"))

	// By design a `nil` just returns an empty string
	assert.Equal(t, "", event.GetObjectValue("bad_key"))

	// Panic conditions. Usually the function tries to just return a value is
	// fairly forgiving, but it does panic under certain obviously impossible
	// cases.
	assert.PanicsWithValue(t, "Cannot access nested slice element with non-integer key: string_key", func() {
		event.GetObjectValue("slice", "string_key")
	})
	assert.PanicsWithValue(t, "Cannot descend into non-map non-slice object with key: bad_key", func() {
		event.GetObjectValue("top_level_key", "bad_key")
	})
}