chore: introduce ginkgo framework for backend E2E testing

[nic-chen]

Please answer these questions before submitting a pull request

• Why submit this pull request?
• Bugfix
• New feature provided
• Improve performance
• Backport patches
• Testcase

introduce ginkgo framework to backend E2E testing, for better test result displaying and better practice.

• Related issues
  close Adding useful information to backend E2E test cases #1136
  close test: clean the temporary data in etcd at the end of test case #942

[codecov-io]

Codecov Report

Merging #1319 (14ad3e8) into master (352a64d) will decrease coverage by 19.97%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master    #1319       +/-   ##
===========================================
- Coverage   67.99%   48.01%   -19.98%     
===========================================
  Files          48       39        -9     
  Lines        3031     2601      -430     
===========================================
- Hits         2061     1249      -812     
- Misses        727     1177      +450     
+ Partials      243      175       -68     

Impacted Files	Coverage Δ
api/internal/utils/version.go	0.00% <0.00%> (-100.00%)	⬇️
api/internal/filter/request_id.go	0.00% <0.00%> (-100.00%)	⬇️
api/internal/core/entity/entity.go	0.00% <0.00%> (-100.00%)	⬇️
api/internal/core/store/storehub.go	0.00% <0.00%> (-70.41%)	⬇️
api/internal/filter/cors.go	0.00% <0.00%> (-66.67%)	⬇️
api/internal/filter/schema.go	0.00% <0.00%> (-55.47%)	⬇️
api/internal/handler/upstream/upstream.go	28.81% <0.00%> (-54.24%)	⬇️
api/internal/utils/consts/api_error.go	0.00% <0.00%> (-50.00%)	⬇️
api/internal/handler/data_loader/route_import.go	27.41% <0.00%> (-37.50%)	⬇️
api/internal/handler/server_info/server_info.go	57.14% <0.00%> (-33.34%)	⬇️
... and 32 more

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[juzhiyuan]

any update?

[idbeta]

@nic-chen Can you provide us with what will be the output when the case fails in the new framework? Is it more convenient to locate the reason?

ping @nic-chen any example?

[membphis]

can we start with a small step?

big PR

[membphis]

please confirm the license

[nic-chen]

@membphis license check result:

github.com/yudai/gojsondiff,https://github.com/yudai/gojsondiff/blob/master/LICENSE,MIT
github.com/nxadm/tail,https://github.com/nxadm/tail/blob/master/LICENSE,MIT
github.com/gavv/httpexpect/v2,https://github.com/gavv/httpexpect/blob/master/v2/LICENSE,MIT
github.com/fsnotify/fsnotify,https://github.com/fsnotify/fsnotify/blob/master/LICENSE,BSD-3-Clause
github.com/imkira/go-interpol,https://github.com/imkira/go-interpol/blob/master/LICENSE,MIT
github.com/klauspost/compress,https://github.com/klauspost/compress/blob/master/LICENSE,BSD-3-Clause
github.com/yalp/jsonpath,https://github.com/yalp/jsonpath/blob/master/LICENSE,BSD-3-Clause
github.com/sergi/go-diff/diffmatchpatch,https://github.com/sergi/go-diff/blob/master/diffmatchpatch/LICENSE,MIT
golang.org/x/net/publicsuffix,Unknown,BSD-3-Clause
github.com/nxadm/tail/ratelimiter,https://github.com/nxadm/tail/blob/master/ratelimiter/Licence,MIT
golang.org/x/sys,Unknown,BSD-3-Clause
github.com/gorilla/websocket,https://github.com/gorilla/websocket/blob/master/LICENSE,BSD-2-Clause
github.com/pmezard/go-difflib/difflib,https://github.com/pmezard/go-difflib/blob/master/difflib/LICENSE,BSD-3-Clause
github.com/xeipuuv/gojsonschema,Unknown,Apache-2.0
github.com/xeipuuv/gojsonreference,Unknown,Apache-2.0
github.com/xeipuuv/gojsonpointer,Unknown,Apache-2.0
moul.io/http2curl,Unknown,Apache-2.0
github.com/fatih/structs,https://github.com/fatih/structs/blob/master/LICENSE,MIT
gopkg.in/yaml.v2,Unknown,Apache-2.0
github.com/onsi/ginkgo/reporters/stenographer/support/go-colorable,https://github.com/onsi/ginkgo/blob/master/reporters/stenographer/support/go-colorable/LICENSE,MIT
github.com/tidwall/gjson,https://github.com/tidwall/gjson/blob/master/LICENSE,MIT
github.com/ajg/form,https://github.com/ajg/form/blob/master/LICENSE,BSD-3-Clause
github.com/yudai/golcs,https://github.com/yudai/golcs/blob/master/LICENSE,MIT
github.com/valyala/fasthttp,https://github.com/valyala/fasthttp/blob/master/LICENSE,MIT
github.com/stretchr/testify,https://github.com/stretchr/testify/blob/master/LICENSE,MIT
github.com/davecgh/go-spew/spew,https://github.com/davecgh/go-spew/blob/master/spew/LICENSE,ISC
github.com/valyala/bytebufferpool,https://github.com/valyala/bytebufferpool/blob/master/LICENSE,MIT
github.com/onsi/ginkgo,https://github.com/onsi/ginkgo/blob/master/LICENSE,MIT
gopkg.in/tomb.v1,Unknown,BSD-3-Clause
github.com/tidwall/pretty,https://github.com/tidwall/pretty/blob/master/LICENSE,MIT
github.com/google/go-querystring/query,https://github.com/google/go-querystring/blob/master/query/LICENSE,BSD-3-Clause
github.com/tidwall/match,https://github.com/tidwall/match/blob/master/LICENSE,MIT
github.com/klauspost/cpuid,https://github.com/klauspost/cpuid/blob/master/LICENSE,MIT