mirror of https://github.com/gin-gonic/gin.git
129 lines
3.8 KiB
Go
129 lines
3.8 KiB
Go
// Copyright 2014 Manu Martinez-Almeida. All rights reserved.
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// Use of this source code is governed by a MIT style
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// license that can be found in the LICENSE file.
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package gin
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import (
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"errors"
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"fmt"
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"testing"
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"github.com/gin-gonic/gin/codec/json"
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"github.com/stretchr/testify/assert"
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)
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func TestError(t *testing.T) {
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baseError := errors.New("test error")
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err := &Error{
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Err: baseError,
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Type: ErrorTypePrivate,
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}
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assert.Equal(t, err.Error(), baseError.Error())
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assert.Equal(t, H{"error": baseError.Error()}, err.JSON())
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assert.Equal(t, err.SetType(ErrorTypePublic), err)
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assert.Equal(t, ErrorTypePublic, err.Type)
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assert.Equal(t, err.SetMeta("some data"), err)
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assert.Equal(t, "some data", err.Meta)
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assert.Equal(t, H{
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"error": baseError.Error(),
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"meta": "some data",
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}, err.JSON())
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jsonBytes, _ := json.Marshal(err)
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assert.Equal(t, "{\"error\":\"test error\",\"meta\":\"some data\"}", string(jsonBytes))
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err.SetMeta(H{ //nolint: errcheck
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"status": "200",
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"data": "some data",
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})
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assert.Equal(t, H{
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"error": baseError.Error(),
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"status": "200",
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"data": "some data",
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}, err.JSON())
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err.SetMeta(H{ //nolint: errcheck
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"error": "custom error",
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"status": "200",
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"data": "some data",
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})
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assert.Equal(t, H{
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"error": "custom error",
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"status": "200",
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"data": "some data",
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}, err.JSON())
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type customError struct {
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status string
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data string
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}
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err.SetMeta(customError{status: "200", data: "other data"}) //nolint: errcheck
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assert.Equal(t, customError{status: "200", data: "other data"}, err.JSON())
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}
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func TestErrorSlice(t *testing.T) {
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errs := errorMsgs{
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{Err: errors.New("first"), Type: ErrorTypePrivate},
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{Err: errors.New("second"), Type: ErrorTypePrivate, Meta: "some data"},
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{Err: errors.New("third"), Type: ErrorTypePublic, Meta: H{"status": "400"}},
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}
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assert.Equal(t, errs, errs.ByType(ErrorTypeAny))
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assert.Equal(t, "third", errs.Last().Error())
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assert.Equal(t, []string{"first", "second", "third"}, errs.Errors())
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assert.Equal(t, []string{"third"}, errs.ByType(ErrorTypePublic).Errors())
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assert.Equal(t, []string{"first", "second"}, errs.ByType(ErrorTypePrivate).Errors())
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assert.Equal(t, []string{"first", "second", "third"}, errs.ByType(ErrorTypePublic|ErrorTypePrivate).Errors())
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assert.Empty(t, errs.ByType(ErrorTypeBind))
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assert.Empty(t, errs.ByType(ErrorTypeBind).String())
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assert.Equal(t, `Error #01: first
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Error #02: second
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Meta: some data
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Error #03: third
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Meta: map[status:400]
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`, errs.String())
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assert.Equal(t, []any{
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H{"error": "first"},
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H{"error": "second", "meta": "some data"},
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H{"error": "third", "status": "400"},
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}, errs.JSON())
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jsonBytes, _ := json.Marshal(errs)
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assert.Equal(t, "[{\"error\":\"first\"},{\"error\":\"second\",\"meta\":\"some data\"},{\"error\":\"third\",\"status\":\"400\"}]", string(jsonBytes))
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errs = errorMsgs{
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{Err: errors.New("first"), Type: ErrorTypePrivate},
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}
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assert.Equal(t, H{"error": "first"}, errs.JSON())
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jsonBytes, _ = json.Marshal(errs)
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assert.Equal(t, "{\"error\":\"first\"}", string(jsonBytes))
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errs = errorMsgs{}
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assert.Nil(t, errs.Last())
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assert.Nil(t, errs.JSON())
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assert.Empty(t, errs.String())
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}
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type TestErr string
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func (e TestErr) Error() string { return string(e) }
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// TestErrorUnwrap tests the behavior of gin.Error with "errors.Is()" and "errors.As()".
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// "errors.Is()" and "errors.As()" have been added to the standard library in go 1.13.
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func TestErrorUnwrap(t *testing.T) {
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innerErr := TestErr("some error")
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// 2 layers of wrapping : use 'fmt.Errorf("%w")' to wrap a gin.Error{}, which itself wraps innerErr
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err := fmt.Errorf("wrapped: %w", &Error{
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Err: innerErr,
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Type: ErrorTypeAny,
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})
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// check that 'errors.Is()' and 'errors.As()' behave as expected :
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assert.True(t, errors.Is(err, innerErr))
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var testErr TestErr
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assert.True(t, errors.As(err, &testErr))
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}
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