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// SPDX-License-Identifier: GPL-3.0-or-later
package logs
import (
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
var testCSVConfig = CSVConfig{
Delimiter: " ",
Format: "$A %B",
}
func TestNewCSVParser(t *testing.T) {
tests := []struct {
name string
format string
wantErr bool
}{
{name: "valid format", format: "$A $B"},
{name: "empty format", wantErr: true},
{name: "bad format: csv read error", format: "$A $B \"$C", wantErr: true},
{name: "bad format: duplicate fields", format: "$A $A", wantErr: true},
{name: "bad format: zero fields", format: "!A !B", wantErr: true},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
c := testCSVConfig
c.Format = tt.format
p, err := NewCSVParser(c, nil)
if tt.wantErr {
assert.Error(t, err)
assert.Nil(t, p)
} else {
assert.NoError(t, err)
assert.NotNil(t, p)
}
})
}
}
func TestNewCSVFormat(t *testing.T) {
tests := []struct {
format string
wantFormat csvFormat
wantErr bool
}{
{format: "$A $B", wantFormat: csvFormat{maxIndex: 1, fields: []csvField{{"$A", 0}, {"$B", 1}}}},
{format: "$A $B !C $E", wantFormat: csvFormat{maxIndex: 3, fields: []csvField{{"$A", 0}, {"$B", 1}, {"$E", 3}}}},
{format: "!A !B !C $E", wantFormat: csvFormat{maxIndex: 3, fields: []csvField{{"$E", 3}}}},
{format: "$A $OFFSET $B", wantFormat: csvFormat{maxIndex: 3, fields: []csvField{{"$A", 0}, {"$B", 3}}}},
{format: "$A $OFFSET $B $OFFSET !A", wantFormat: csvFormat{maxIndex: 3, fields: []csvField{{"$A", 0}, {"$B", 3}}}},
{format: "$A $OFFSET $OFFSET $B", wantFormat: csvFormat{maxIndex: 5, fields: []csvField{{"$A", 0}, {"$B", 5}}}},
{format: "$OFFSET $A $OFFSET $B", wantFormat: csvFormat{maxIndex: 5, fields: []csvField{{"$A", 2}, {"$B", 5}}}},
{format: "$A \"$A", wantErr: true},
{format: "$A $A", wantErr: true},
{format: "!A !A", wantErr: true},
{format: "", wantErr: true},
}
for _, tt := range tests {
t.Run(tt.format, func(t *testing.T) {
c := testCSVConfig
c.Format = tt.format
c.CheckField = testCheckCSVFormatField
tt.wantFormat.raw = tt.format
f, err := newCSVFormat(c)
if tt.wantErr {
assert.Error(t, err)
assert.Nil(t, f)
} else {
assert.NoError(t, err)
assert.Equal(t, tt.wantFormat, *f)
}
})
}
}
func TestCSVParser_ReadLine(t *testing.T) {
tests := []struct {
name string
row string
format string
wantErr bool
wantParseErr bool
}{
{name: "match and no error", row: "1 2 3", format: `$A $B $C`},
{name: "match but error on assigning", row: "1 2 3", format: `$A $B $ERR`, wantErr: true, wantParseErr: true},
{name: "not match", row: "1 2 3", format: `$A $B $C $d`, wantErr: true, wantParseErr: true},
{name: "error on reading csv.Err", row: "1 2\"3", format: `$A $B $C`, wantErr: true, wantParseErr: true},
{name: "error on reading EOF", row: "", format: `$A $B $C`, wantErr: true},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
var line logLine
r := strings.NewReader(tt.row)
c := testCSVConfig
c.Format = tt.format
p, err := NewCSVParser(c, r)
require.NoError(t, err)
err = p.ReadLine(&line)
if tt.wantErr {
require.Error(t, err)
if tt.wantParseErr {
assert.True(t, IsParseError(err))
} else {
assert.False(t, IsParseError(err))
}
} else {
assert.NoError(t, err)
}
})
}
}
func TestCSVParser_Parse(t *testing.T) {
tests := []struct {
name string
row string
format string
wantErr bool
}{
{name: "match and no error", row: "1 2 3", format: `$A $B $C`},
{name: "match but error on assigning", row: "1 2 3", format: `$A $B $ERR`, wantErr: true},
{name: "not match", row: "1 2 3", format: `$A $B $C $d`, wantErr: true},
{name: "error on reading csv.Err", row: "1 2\"3", format: `$A $B $C`, wantErr: true},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
var line logLine
r := strings.NewReader(tt.row)
c := testCSVConfig
c.Format = tt.format
p, err := NewCSVParser(c, r)
require.NoError(t, err)
err = p.ReadLine(&line)
if tt.wantErr {
require.Error(t, err)
assert.True(t, IsParseError(err))
} else {
assert.NoError(t, err)
}
})
}
}
func TestCSVParser_Info(t *testing.T) {
p, err := NewCSVParser(testCSVConfig, nil)
require.NoError(t, err)
assert.NotZero(t, p.Info())
}
func testCheckCSVFormatField(name string) (newName string, offset int, valid bool) {
if len(name) < 2 || !strings.HasPrefix(name, "$") {
return "", 0, false
}
if name == "$OFFSET" {
return "", 1, false
}
return name, 0, true
}
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