stack/stack_test.go at master · weisbartb/stack · GitHub

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package stack_test

import (
	"bytes"
	"github.com/weisbartb/stack"
	"strconv"
	"strings"
	"testing"

	"github.com/pkg/errors"
	"github.com/rs/zerolog"
	"github.com/stretchr/testify/require"
)

func a() stack.MarshableStack {
	return b()
}
func b() stack.MarshableStack {
	return c()
}
func c() stack.MarshableStack {
	return stack.MarshalStack()
}

func TestGetStack(t *testing.T) {
	s := a()
	require.NotNil(t, s)
	// This uses 3 for a,b,c and other 3 for runtime,test runner, this method
	require.Equal(t, 6, len(s))
}
func TestFormatStack(t *testing.T) {
	s := a()
	require.NotNil(t, s)
	for _, v := range s {
		require.NotEmpty(t, v.File())
		require.NotEmpty(t, v.Name())
	}
	require.Contains(t, s[0].Name(), "github.com/weisbartb/stack_test.c")
	require.Contains(t, s[1].Name(), "github.com/weisbartb/stack_test.b")
	require.Contains(t, s[2].Name(), "github.com/weisbartb/stack_test.a")
}
func TestGetStackSingleError(t *testing.T) {
	_, err := strconv.Atoi("banana")
	require.NotNil(t, stack.Trace(err))
}
func TestError_Unwrap(t *testing.T) {
	_, err := strconv.Atoi("banana")
	err = stack.Trace(err)
	require.NotNil(t, err)
	err = errors.Wrap(err, "something")
	require.True(t, stack.HasTrace(err))
}

func TestGetTrace(t *testing.T) {
	_, err := strconv.Atoi("banana")
	err = stack.Trace(err)
	require.NotNil(t, err)
	wrapped := errors.Wrap(err, "something")
	trace, _ := stack.GetTrace(wrapped)
	require.Equal(t, trace, err)
}

func TestError_Extra(t *testing.T) {
	_, err := strconv.Atoi("banana")
	err = stack.Trace(err, stack.ErrorKVP{
		Key:   "something",
		Value: "extra",
	})
	require.NotNil(t, err)
	wrapped := errors.Wrap(err, "something")
	trace, _ := stack.GetTrace(wrapped)
	require.Len(t, trace.Extra(), 1)
}

func TestMarshableStack_MarshalZerologObject(t *testing.T) {
	buf := bytes.Buffer{}
	zl := zerolog.New(&buf)
	err := stack.Trace(errors.New("test"), stack.ErrorKVP{
		Key:   "test",
		Value: "val",
	})
	zl.Err(err).Send()
	require.True(t, strings.Contains(buf.String(), `"extra":[{"test":"val"}]`))
	buf.Reset()
	err = stack.Trace(err)
	zl.Err(err).Send()
	require.True(t, strings.Contains(buf.String(), `"extra":[{"test":"val"}]`))
	err = stack.Trace(err, stack.ErrorKVP{
		Key:   "test2",
		Value: "foo",
	})
	buf.Reset()
	zl.Err(err).Send()
	require.True(t, strings.Contains(buf.String(), `"extra":[{"test":"val"},{"test2":"foo"}]`))
}