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|
package customizations
import (
"bytes"
"context"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
"io"
"strings"
"testing"
)
func TestTreeHashMiddleware(t *testing.T) {
m := TreeHash{}
cases := map[string]struct {
Body io.Reader
SetRequest func(r *smithyhttp.Request) *smithyhttp.Request
Linear string
Tree string
ExpectErr string
}{
"all zeroes": {
Body: func() io.ReadSeeker {
buf := make([]byte, 5767168) // 5.5MB buffer
for i := range buf {
buf[i] = '0' // Fill with zero characters
}
return bytes.NewReader(buf)
}(),
Linear: "68aff0c5a91aa0491752bfb96e3fef33eb74953804f6a2f7b708d5bcefa8ff6b",
Tree: "154e26c78fd74d0c2c9b3cc4644191619dc4f2cd539ae2a74d5fd07957a3ee6a",
},
"non-seekable stream without precomputed hash": {
Body: func() io.Reader {
buf := make([]byte, 5767168)
for i := range buf {
buf[i] = '0'
}
return bytes.NewBuffer(buf)
}(),
ExpectErr: "tree hash",
},
"non-seekable stream with precomputed hash": {
Body: func() io.Reader {
buf := make([]byte, 5767168)
for i := range buf {
buf[i] = '0'
}
return bytes.NewBuffer(buf)
}(),
SetRequest: func(r *smithyhttp.Request) *smithyhttp.Request {
r.Header.Set("X-Amz-Content-Sha256", "precomputed")
r.Header.Set("X-Amz-Sha256-Tree-Hash", "precomputed")
return r
},
// These values aren't actually correct, but they are what we're explicitly setting.
// If the middleware were to try to compute the values anyway, the checks would fail.
Linear: "precomputed",
Tree: "precomputed",
},
}
for name, c := range cases {
t.Run(name, func(t *testing.T) {
_, _, err := m.HandleFinalize(context.Background(),
middleware.FinalizeInput{
Request: func() *smithyhttp.Request {
r := smithyhttp.NewStackRequest()
req, ok := r.(*smithyhttp.Request)
if !ok || req == nil {
t.Fatalf("expect smithy request, got %T", r)
}
if c.SetRequest != nil {
req = c.SetRequest(req)
}
req, err := req.SetStream(c.Body)
if err != nil {
t.Fatalf("expect no error, got %v", err)
}
return req
}(),
},
middleware.FinalizeHandlerFunc(
func(ctx context.Context, input middleware.FinalizeInput) (
output middleware.FinalizeOutput, metadata middleware.Metadata, err error,
) {
req, ok := input.Request.(*smithyhttp.Request)
if !ok || req == nil {
t.Fatalf("expect smithy request, got %T", input.Request)
}
actualLinear := req.Header.Get("X-Amz-Content-Sha256")
if actualLinear != c.Linear {
t.Fatalf("expected linear hash to be \"%s\" but was \"%s\"", c.Linear, actualLinear)
}
actualTree := req.Header.Get("X-Amz-Sha256-Tree-Hash")
if actualTree != c.Tree {
t.Fatalf("expected tree hash to be \"%s\" but was \"%s\"", c.Tree, actualTree)
}
if body, ok := c.Body.(io.ReadSeeker); ok {
n, _ := body.Seek(0, io.SeekCurrent)
if n != 0 {
t.Fatalf("expected body to be rewound, but was at position %d", n)
}
}
return output, metadata, err
}),
)
if len(c.ExpectErr) != 0 {
if err == nil {
t.Fatalf("expect error, got none")
}
if e, a := c.ExpectErr, err.Error(); !strings.Contains(a, e) {
t.Fatalf("expect error to contain %v, got %v", e, a)
}
} else {
if err != nil {
t.Fatalf("expect no error, got %v", err)
}
}
})
}
}
|
