fix: machine logs timestamp parsing and streaming for systemd <v255

internal/journal/logs_test.go

@@ -11,6 +11,109 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+func TestParseUnixTimestamp(t *testing.T) {
+	tests := []struct {
+		name  string
+		input string
+		want  time.Time
+		ok    bool
+	}{
+		{
+			name:  "valid with microseconds",
+			input: "1769188773.687500",
+			want:  time.Unix(1769188773, 687500000),
+			ok:    true,
+		},
+		{
+			name:  "zero microseconds",
+			input: "1769188773.000000",
+			want:  time.Unix(1769188773, 0),
+			ok:    true,
+		},
+		{
+			name:  "epoch",
+			input: "0.000000",
+			want:  time.Unix(0, 0),
+			ok:    true,
+		},
+		{
+			name:  "no fractional part",
+			input: "1769188773",
+			want:  time.Time{},
+			ok:    false,
+		},
+		{
+			name:  "non-numeric seconds",
+			input: "abc.000000",
+			want:  time.Time{},
+			ok:    false,
+		},
+		{
+			name:  "non-numeric microseconds",
+			input: "1769188773.abc",
+			want:  time.Time{},
+			ok:    false,
+		},
+		{
+			name:  "empty",
+			input: "",
+			want:  time.Time{},
+			ok:    false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, ok := parseUnixTimestamp([]byte(tt.input))
+			assert.Equal(t, tt.ok, ok)
+			assert.True(t, tt.want.Equal(got), "want %v, got %v", tt.want, got)
+		})
+	}
+}
+
+func TestEntry(t *testing.T) {
+	tests := []struct {
+		name      string
+		input     string
+		timestamp time.Time
+		message   string
+	}{
+		{
+			name:      "valid entry",
+			input:     "1769188773.687500 uncloudd[332455]: INFO  Starting daemon.",
+			timestamp: time.Unix(1769188773, 687500000),
+			message:   "uncloudd[332455]: INFO  Starting daemon.\n",
+		},
+		{
+			name:      "unparseable timestamp keeps full line as message",
+			input:     "-- Boot 1234567890 --",
+			timestamp: time.Time{},
+			message:   "-- Boot 1234567890 --\n",
+		},
+		{
+			name:      "line without space keeps full line as message",
+			input:     "nospacehere",
+			timestamp: time.Time{},
+			message:   "nospacehere\n",
+		},
+		{
+			name:      "empty line",
+			input:     "",
+			timestamp: time.Time{},
+			message:   "\n",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := entry([]byte(tt.input))
+			assert.True(t, tt.timestamp.Equal(got.Timestamp), "timestamp: want %v, got %v", tt.timestamp, got.Timestamp)
+			assert.Equal(t, tt.message, string(got.Message))
+			assert.Equal(t, api.LogStreamStdout, got.Stream)
+		})
+	}
+}
+
 func TestLogs(t *testing.T) {
 	commandContext = func(ctx context.Context, _ string, _ ...string) *exec.Cmd {
 		return exec.CommandContext(ctx, "/usr/bin/tail", "testdata/logs")