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package warnings_test
import (
"errors"
"reflect"
"testing"
w "gopkg.in/warnings.v0"
)
var _ error = w.List{}
type warn string
func (w warn) Error() string { return string(w) }
func warning(s string) error { return warn(s) }
func fatal(s string) error { return errors.New(s) }
func isFatal(err error) bool {
_, ok := err.(warn)
return !ok
}
func omitNils(errs []error) []error {
if errs == nil {
return nil
}
res := []error{}
for _, err := range errs {
if err != nil {
res = append(res, err)
}
}
return res
}
var collectorTests = [...]struct {
collector w.Collector
warnings []error
fatal error
}{
{w.Collector{IsFatal: isFatal}, nil, nil},
{w.Collector{IsFatal: isFatal}, nil, fatal("1f")},
{w.Collector{IsFatal: isFatal}, []error{warning("1w")}, nil},
{w.Collector{IsFatal: isFatal}, []error{warning("1w")}, fatal("2f")},
{w.Collector{IsFatal: isFatal}, []error{warning("1w"), warning("2w")}, fatal("3f")},
{w.Collector{IsFatal: isFatal}, []error{warning("1w"), nil, warning("2w")}, fatal("3f")},
{w.Collector{IsFatal: isFatal, FatalWithWarnings: true}, []error{warning("1w")}, fatal("2f")},
}
func TestCollector(t *testing.T) {
for _, tt := range collectorTests {
c := tt.collector
for _, warn := range tt.warnings {
err := c.Collect(warn)
if err != nil {
t.Fatalf("Collect(%v) = %v; want nil", warn, err)
}
}
if tt.fatal != nil {
err := c.Collect(tt.fatal)
if err == nil || w.FatalOnly(err) != tt.fatal {
t.Fatalf("Collect(%v) = %v; want fatal %v", tt.fatal,
err, tt.fatal)
}
}
err := c.Done()
if tt.fatal != nil {
if err == nil || w.FatalOnly(err) != tt.fatal {
t.Fatalf("Done() = %v; want fatal %v", err, tt.fatal)
}
}
if tt.fatal == nil || c.FatalWithWarnings {
warns := w.WarningsOnly(err)
if !reflect.DeepEqual(warns, omitNils(tt.warnings)) {
t.Fatalf("Done() = %v; want warnings %v", err,
omitNils(tt.warnings))
}
}
}
}
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