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Merge pull request #22 from StephanHCB/issue-21-interaction-checker
Issue 21 interaction checker
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@@ -1,29 +1,16 @@ | ||
github.com/StephanHCB/go-autumn-logging v0.3.0 h1:G0zs8xoth8i8mOeoFgG3Dvk6dIY9dPPJ7wkm6mjaPyY= | ||
github.com/StephanHCB/go-autumn-logging v0.3.0/go.mod h1:dPABYdECU3XrFib03uXbQFVLftUP5c4YaKSineiw37U= | ||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= | ||
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= | ||
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= | ||
github.com/go-http-utils/headers v0.0.0-20181008091004-fed159eddc2a h1:v6zMvHuY9yue4+QkG/HQ/W67wvtQmWJ4SDo9aK/GIno= | ||
github.com/go-http-utils/headers v0.0.0-20181008091004-fed159eddc2a/go.mod h1:I79BieaU4fxrw4LMXby6q5OS9XnoR9UIKLOzDFjUmuw= | ||
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= | ||
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= | ||
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= | ||
github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw= | ||
github.com/stretchr/objx v0.5.0 h1:1zr/of2m5FGMsad5YfcqgdqdWrIhu+EBEJRhR1U7z/c= | ||
github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo= | ||
github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= | ||
github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU= | ||
github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk= | ||
github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4= | ||
github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4= | ||
github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk= | ||
github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo= | ||
github.com/tidwall/tinylru v1.1.0 h1:XY6IUfzVTU9rpwdhKUF6nQdChgCdGjkMfLzbWyiau6I= | ||
github.com/tidwall/tinylru v1.1.0/go.mod h1:3+bX+TJ2baOLMWTnlyNWHh4QMnFyARg2TLTQ6OFbzw8= | ||
github.com/tidwall/tinylru v1.2.1 h1:VgBr72c2IEr+V+pCdkPZUwiQ0KJknnWIYbhxAVkYfQk= | ||
github.com/tidwall/tinylru v1.2.1/go.mod h1:9bQnEduwB6inr2Y7AkBP7JPgCkyrhTV/ZpX0oOOpBI4= | ||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM= | ||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= | ||
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= | ||
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= | ||
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= |
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Original file line number | Diff line number | Diff line change |
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package aurestverifier | ||
|
||
import ( | ||
"context" | ||
"encoding/json" | ||
"errors" | ||
"fmt" | ||
aurestclientapi "github.com/StephanHCB/go-autumn-restclient/api" | ||
"io" | ||
"net/http" | ||
"net/url" | ||
"sort" | ||
"strings" | ||
) | ||
|
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type VerifierImpl struct { | ||
expectations []Expectation | ||
firstUnexpected *Request | ||
} | ||
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type Request struct { | ||
Name string // key for the request | ||
Method string | ||
Header http.Header // currently not tested, just supplied as documentation for now | ||
Url string | ||
Body interface{} | ||
} | ||
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type ResponseOrError struct { | ||
Response aurestclientapi.ParsedResponse | ||
Error error | ||
} | ||
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type Expectation struct { | ||
Request Request | ||
Response ResponseOrError | ||
Matched bool | ||
} | ||
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func (e Expectation) matches(method string, requestUrl string, requestBody interface{}) bool { | ||
// this is a very simple "must match 100%" for the first version | ||
urlMatches := e.Request.Url == requestUrl | ||
methodMatches := e.Request.Method == method | ||
bodyMatches := requestBodyAsString(e.Request.Body) == requestBodyAsString(requestBody) | ||
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return urlMatches && methodMatches && bodyMatches | ||
} | ||
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func requestBodyAsString(requestBody interface{}) string { | ||
if requestBody == nil { | ||
return "" | ||
} | ||
if asCustom, ok := requestBody.(aurestclientapi.CustomRequestBody); ok { | ||
if b, err := io.ReadAll(asCustom.BodyReader); err == nil { | ||
return string(b) | ||
} else { | ||
return fmt.Sprintf("ERROR: %s", err.Error()) | ||
} | ||
} | ||
if asString, ok := requestBody.(string); ok { | ||
return asString | ||
} | ||
if asUrlValues, ok := requestBody.(url.Values); ok { | ||
asString := asUrlValues.Encode() | ||
return asString | ||
} | ||
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marshalled, err := json.Marshal(requestBody) | ||
if err != nil { | ||
return fmt.Sprintf("ERROR: %s", err.Error()) | ||
} | ||
return string(marshalled) | ||
} | ||
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func headersSortedAsString(spec http.Header) string { | ||
var result strings.Builder | ||
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sortedKeys := make([]string, 0) | ||
for k, _ := range spec { | ||
sortedKeys = append(sortedKeys, k) | ||
} | ||
sort.Strings(sortedKeys) | ||
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for _, k := range sortedKeys { | ||
result.WriteString(fmt.Sprintf("%s: ", k)) | ||
for _, v := range spec[k] { | ||
result.WriteString(fmt.Sprintf("%s ", v)) | ||
} | ||
} | ||
return result.String() | ||
} | ||
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func New() (aurestclientapi.Client, *VerifierImpl) { | ||
instance := &VerifierImpl{ | ||
expectations: make([]Expectation, 0), | ||
} | ||
return instance, instance | ||
} | ||
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func (c *VerifierImpl) Perform(ctx context.Context, method string, requestUrl string, requestBody interface{}, response *aurestclientapi.ParsedResponse) error { | ||
expected, err := c.currentExpectation(method, requestUrl, requestBody) | ||
if err != nil { | ||
return err | ||
} | ||
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if expected.Response.Error != nil { | ||
return expected.Response.Error | ||
} | ||
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mockResponse := expected.Response.Response | ||
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response.Header = mockResponse.Header | ||
response.Status = mockResponse.Status | ||
response.Time = mockResponse.Time | ||
if response.Body != nil && mockResponse.Body != nil { | ||
// copy over through json round trip | ||
marshalled, _ := json.Marshal(mockResponse.Body) | ||
_ = json.Unmarshal(marshalled, response.Body) | ||
} | ||
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return nil | ||
} | ||
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func (c *VerifierImpl) currentExpectation(method string, requestUrl string, requestBody interface{}) (Expectation, error) { | ||
for i, e := range c.expectations { | ||
if !e.Matched { | ||
if e.matches(method, requestUrl, requestBody) { | ||
c.expectations[i].Matched = true | ||
return e, nil | ||
} else { | ||
if c.firstUnexpected == nil { | ||
c.firstUnexpected = &Request{ | ||
Name: fmt.Sprintf("unmatched expectation %d - %s", i+1, e.Request.Name), | ||
Method: method, | ||
Header: nil, // not currently available | ||
Url: requestUrl, | ||
Body: requestBody, | ||
} | ||
} | ||
return Expectation{}, fmt.Errorf("unmatched expectation %d - %s", i+1, e.Request.Name) | ||
} | ||
} | ||
} | ||
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if c.firstUnexpected == nil { | ||
c.firstUnexpected = &Request{ | ||
Name: fmt.Sprintf("no expectations remaining - unexpected request at end"), | ||
Method: method, | ||
Header: nil, // not currently available | ||
Url: requestUrl, | ||
Body: requestBody, | ||
} | ||
} | ||
return Expectation{}, errors.New("no expectations remaining - unexpected request at end") | ||
} | ||
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func (c *VerifierImpl) AddExpectation(requestMatcher Request, response aurestclientapi.ParsedResponse, err error) { | ||
c.expectations = append(c.expectations, Expectation{ | ||
Request: requestMatcher, | ||
Response: ResponseOrError{ | ||
Response: response, | ||
Error: err, | ||
}, | ||
}) | ||
} | ||
|
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func (c *VerifierImpl) FirstUnexpectedOrNil() *Request { | ||
return c.firstUnexpected | ||
} |