Carlos Florêncio
67 lines
1.7 KiB
Go
67 lines
1.7 KiB
Go
package logs
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import (
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"errors"
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"testing"
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"time"
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"github.com/kandev/kandev/internal/common/logger/buffer"
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)
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func TestTailFromBuffer_NilBufferReturnsEmpty(t *testing.T) {
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svc := &Service{}
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if got := svc.tailFromBuffer(5); len(got) != 0 {
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t.Fatalf("len = %d, want 0", len(got))
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}
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}
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func TestTailFromBuffer_ReturnsLastNLines(t *testing.T) {
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rb := buffer.New(10)
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for i := 1; i <= 5; i++ {
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rb.Push(buffer.Entry{
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Timestamp: time.Date(2026, 1, 1, 0, 0, i, 0, time.UTC),
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Level: "info",
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Message: "line",
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})
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}
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svc := &Service{memBuffer: rb}
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lines := svc.tailFromBuffer(2)
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if len(lines) != 2 {
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t.Fatalf("len(lines) = %d, want 2", len(lines))
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}
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if lines[0] != "2026-01-01T00:00:04.000Z INFO line" {
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t.Errorf("lines[0] = %q", lines[0])
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}
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if lines[1] != "2026-01-01T00:00:05.000Z INFO line" {
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t.Errorf("lines[1] = %q", lines[1])
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}
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}
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func TestFormatBufferEntry_IncludesCallerFieldsAndStack(t *testing.T) {
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ts := time.Date(2026, 5, 1, 12, 30, 0, 0, time.UTC)
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line := formatBufferEntry(buffer.Entry{
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Timestamp: ts,
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Level: "warn",
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Caller: "main.go:42",
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Message: "boom",
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Fields: map[string]any{"count": 3, "name": "alpha"},
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Stack: "trace...",
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})
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if line != "2026-05-01T12:30:00.000Z WARN main.go:42 boom count=3 name=alpha stack=..." {
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t.Errorf("formatBufferEntry = %q", line)
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}
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}
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func TestFormatFieldValue_StringErrorAndJSON(t *testing.T) {
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if got := formatFieldValue("plain"); got != "plain" {
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t.Errorf("string = %q", got)
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}
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errVal := errors.New("boom")
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if got := formatFieldValue(errVal); got != "boom" {
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t.Errorf("error = %q", got)
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}
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if got := formatFieldValue(map[string]int{"a": 1}); got != `{"a":1}` {
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t.Errorf("json = %q", got)
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}
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}
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