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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| package spruce | ||
|
|
||
| import ( | ||
| "io" | ||
| "log/slog" | ||
| "time" | ||
| ) | ||
|
|
||
| var newLine = []byte{'\n'} | ||
|
|
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| // NewStreamLogger returns a [slog.Logger] that writes to w. | ||
| func NewStreamLogger(w io.Writer) *slog.Logger { | ||
| return slog.New(NewStreamHandler(w)) | ||
| } | ||
|
|
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| // NewStreamHandler returns a new [slog.Handler] that writes to w. | ||
| func NewStreamHandler(w io.Writer) slog.Handler { | ||
| return &handler{ | ||
| log: func(s string) error { | ||
| if _, err := w.Write([]byte(s)); err != nil { | ||
| return err | ||
| } | ||
| if _, err := w.Write(newLine); err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| }, | ||
| epoch: time.Now(), | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| package spruce_test | ||
|
|
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| import ( | ||
| "strings" | ||
| "testing" | ||
|
|
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| . "github.com/dogmatiq/spruce" | ||
| ) | ||
|
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| func TestNewStreamLogger(t *testing.T) { | ||
| w := &strings.Builder{} | ||
| l := NewStreamLogger(w) | ||
|
|
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| l.Info("<message>") | ||
|
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| got := w.String() | ||
| want := "<message>\n" | ||
|
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| if !strings.HasSuffix(got, want) { | ||
| t.Errorf("got %q, want suffix of %q", got, want) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| package spruce | ||
|
|
||
| import ( | ||
| "log/slog" | ||
| "testing" | ||
| "time" | ||
| ) | ||
|
|
||
| // TestingT is the subset of [testing.TB] that is used to write logs. | ||
| type TestingT interface { | ||
| Log(...any) | ||
| } | ||
|
|
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| var _ TestingT = (testing.TB)(nil) | ||
|
|
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| // NewTestLogger returns a [slog.Logger] that writes to t. | ||
| func NewTestLogger(t TestingT) *slog.Logger { | ||
| return slog.New(NewTestHandler(t)) | ||
| } | ||
|
|
||
| // NewTestHandler returns a new [slog.Handler] that writes to t. | ||
| func NewTestHandler(t TestingT) slog.Handler { | ||
| return &handler{ | ||
| log: func(s string) error { | ||
| t.Log(s) | ||
| return nil | ||
| }, | ||
| epoch: time.Now(), | ||
| } | ||
| } |