// Create a mutable content object whose initial contents are given by the
// supplied read proxy.
func NewContent(
initialContent lease.ReadProxy,
clock timeutil.Clock) (mc Content) {
mc = &mutableContent{
clock: clock,
initialContent: initialContent,
dirtyThreshold: initialContent.Size(),
}
return
}
func runReadAtTestCases(
rp lease.ReadProxy,
cases []readAtTestCase) {
for i, tc := range cases {
desc := fmt.Sprintf("Test case %d: [%d, %d)", i, tc.start, tc.limit)
AssertLe(tc.start, tc.limit)
buf := make([]byte, tc.limit-tc.start)
n, err := rp.ReadAt(context.Background(), buf, tc.start)
AssertEq(tc.expectedContents, string(buf[:n]), "%s", desc)
if tc.errMatcher == nil {
AssertEq(nil, err, "%s", desc)
} else {
ExpectThat(err, tc.errMatcher, desc)
}
}
}