Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

filter/filter_test.go

@@ -0,0 +1,132 @@
+package filter
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestCompile(t *testing.T) {
+	f, err := Compile(nil)
+	require.NoError(t, err)
+	require.Nil(t, f)
+
+	f, err = Compile([]string{"cpu"})
+	require.NoError(t, err)
+	require.True(t, f.Match("cpu"))
+	require.False(t, f.Match("cpu0"))
+	require.False(t, f.Match("mem"))
+
+	f, err = Compile([]string{"cpu*"})
+	require.NoError(t, err)
+	require.True(t, f.Match("cpu"))
+	require.True(t, f.Match("cpu0"))
+	require.False(t, f.Match("mem"))
+
+	f, err = Compile([]string{"cpu", "mem"})
+	require.NoError(t, err)
+	require.True(t, f.Match("cpu"))
+	require.False(t, f.Match("cpu0"))
+	require.True(t, f.Match("mem"))
+
+	f, err = Compile([]string{"cpu", "mem", "net*"})
+	require.NoError(t, err)
+	require.True(t, f.Match("cpu"))
+	require.False(t, f.Match("cpu0"))
+	require.True(t, f.Match("mem"))
+	require.True(t, f.Match("network"))
+
+	f, err = Compile([]string{"cpu.*.count"}, '.')
+	require.NoError(t, err)
+	require.False(t, f.Match("cpu.count"))
+	require.True(t, f.Match("cpu.measurement.count"))
+	require.False(t, f.Match("cpu.field.measurement.count"))
+
+	f, err = Compile([]string{"cpu.*.count"}, '.', ',')
+	require.NoError(t, err)
+	require.True(t, f.Match("cpu.measurement.count"))
+	require.False(t, f.Match("cpu.,.count")) // ',' is not considered under * as it is specified as a separator
+	require.False(t, f.Match("cpu.field,measurement.count"))
+}
+
+func TestIncludeExclude(t *testing.T) {
+	labels := []string{"best", "com_influxdata", "timeseries", "com_influxdata_telegraf", "ever"}
+	tags := make([]string, 0, len(labels))
+
+	filter, err := NewIncludeExcludeFilter(nil, []string{"com_influx*"})
+	if err != nil {
+		t.Fatalf("Failed to create include/exclude filter - %v", err)
+	}
+
+	for i := range labels {
+		if filter.Match(labels[i]) {
+			tags = append(tags, labels[i])
+		}
+	}
+
+	require.Equal(t, []string{"best", "timeseries", "ever"}, tags)
+}
+
+var benchbool bool
+
+func BenchmarkFilterSingleNoGlobFalse(b *testing.B) {
+	f, err := Compile([]string{"cpu"})
+	require.NoError(b, err)
+	var tmp bool
+	for n := 0; n < b.N; n++ {
+		tmp = f.Match("network")
+	}
+	benchbool = tmp
+}
+
+func BenchmarkFilterSingleNoGlobTrue(b *testing.B) {
+	f, err := Compile([]string{"cpu"})
+	require.NoError(b, err)
+	var tmp bool
+	for n := 0; n < b.N; n++ {
+		tmp = f.Match("cpu")
+	}
+	benchbool = tmp
+}
+
+func BenchmarkFilter(b *testing.B) {
+	f, err := Compile([]string{"cpu", "mem", "net*"})
+	require.NoError(b, err)
+	var tmp bool
+	for n := 0; n < b.N; n++ {
+		tmp = f.Match("network")
+	}
+	benchbool = tmp
+}
+
+func BenchmarkFilterNoGlob(b *testing.B) {
+	f, err := Compile([]string{"cpu", "mem", "net"})
+	require.NoError(b, err)
+	var tmp bool
+	for n := 0; n < b.N; n++ {
+		tmp = f.Match("net")
+	}
+	benchbool = tmp
+}
+
+func BenchmarkFilter2(b *testing.B) {
+	f, err := Compile([]string{"aa", "bb", "c", "ad", "ar", "at", "aq",
+		"aw", "az", "axxx", "ab", "cpu", "mem", "net*"})
+	require.NoError(b, err)
+	var tmp bool
+	for n := 0; n < b.N; n++ {
+		tmp = f.Match("network")
+	}
+	benchbool = tmp
+}
+
+func BenchmarkFilter2NoGlob(b *testing.B) {
+	f, err := Compile([]string{"aa", "bb", "c", "ad", "ar", "at", "aq",
+		"aw", "az", "axxx", "ab", "cpu", "mem", "net"})
+	require.NoError(b, err)
+	var tmp bool
+	for n := 0; n < b.N; n++ {
+		tmp = f.Match("net")
+	}
+	benchbool = tmp
+}