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vendor/github.com/aws/aws-sdk-go/awstesting/util.go

@@ -0,0 +1,94 @@
+package awstesting
+
+import (
+	"io"
+	"time"
+
+	"github.com/aws/aws-sdk-go/private/util"
+)
+
+// ZeroReader is a io.Reader which will always write zeros to the byte slice provided.
+type ZeroReader struct{}
+
+// Read fills the provided byte slice with zeros returning the number of bytes written.
+func (r *ZeroReader) Read(b []byte) (int, error) {
+	for i := 0; i < len(b); i++ {
+		b[i] = 0
+	}
+	return len(b), nil
+}
+
+// ReadCloser is a io.ReadCloser for unit testing.
+// Designed to test for leaks and whether a handle has
+// been closed
+type ReadCloser struct {
+	Size     int
+	Closed   bool
+	set      bool
+	FillData func(bool, []byte, int, int)
+}
+
+// Read will call FillData and fill it with whatever data needed.
+// Decrements the size until zero, then return io.EOF.
+func (r *ReadCloser) Read(b []byte) (int, error) {
+	if r.Closed {
+		return 0, io.EOF
+	}
+
+	delta := len(b)
+	if delta > r.Size {
+		delta = r.Size
+	}
+	r.Size -= delta
+
+	for i := 0; i < delta; i++ {
+		b[i] = 'a'
+	}
+
+	if r.FillData != nil {
+		r.FillData(r.set, b, r.Size, delta)
+	}
+	r.set = true
+
+	if r.Size > 0 {
+		return delta, nil
+	}
+	return delta, io.EOF
+}
+
+// Close sets Closed to true and returns no error
+func (r *ReadCloser) Close() error {
+	r.Closed = true
+	return nil
+}
+
+// SortedKeys returns a sorted slice of keys of a map.
+func SortedKeys(m map[string]interface{}) []string {
+	return util.SortedKeys(m)
+}
+
+// A FakeContext provides a simple stub implementation of a Context
+type FakeContext struct {
+	Error  error
+	DoneCh chan struct{}
+}
+
+// Deadline always will return not set
+func (c *FakeContext) Deadline() (deadline time.Time, ok bool) {
+	return time.Time{}, false
+}
+
+// Done returns a read channel for listening to the Done event
+func (c *FakeContext) Done() <-chan struct{} {
+	return c.DoneCh
+}
+
+// Err returns the error, is nil if not set.
+func (c *FakeContext) Err() error {
+	return c.Error
+}
+
+// Value ignores the Value and always returns nil
+func (c *FakeContext) Value(key interface{}) interface{} {
+	return nil
+}