66 lines
1.4 KiB
Go
66 lines
1.4 KiB
Go
package errdefs
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import (
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"testing"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"github.com/pkg/errors"
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)
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func TestGRPCRoundTrip(t *testing.T) {
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errShouldLeaveAlone := errors.New("unknown to package")
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for _, testcase := range []struct {
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input error
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cause error
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str string
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}{
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{
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input: ErrAlreadyExists,
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cause: ErrAlreadyExists,
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},
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{
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input: ErrNotFound,
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cause: ErrNotFound,
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},
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{
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input: errors.Wrapf(ErrFailedPrecondition, "test test test"),
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cause: ErrFailedPrecondition,
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str: "test test test: failed precondition",
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},
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{
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input: status.Errorf(codes.Unavailable, "should be not available"),
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cause: ErrUnavailable,
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str: "should be not available: unavailable",
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},
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{
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input: errShouldLeaveAlone,
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cause: ErrUnknown,
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str: errShouldLeaveAlone.Error() + ": " + ErrUnknown.Error(),
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},
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} {
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t.Run(testcase.input.Error(), func(t *testing.T) {
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t.Logf("input: %v", testcase.input)
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gerr := ToGRPC(testcase.input)
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t.Logf("grpc: %v", gerr)
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ferr := FromGRPC(gerr)
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t.Logf("recovered: %v", ferr)
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if errors.Cause(ferr) != testcase.cause {
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t.Fatalf("unexpected cause: %v != %v", errors.Cause(ferr), testcase.cause)
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}
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expected := testcase.str
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if expected == "" {
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expected = testcase.cause.Error()
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}
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if ferr.Error() != expected {
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t.Fatalf("unexpected string: %q != %q", ferr.Error(), expected)
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}
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})
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}
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}
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