summaryrefslogtreecommitdiffstats
path: root/src/encoding/csv/writer_test.go
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:16:40 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:16:40 +0000
commit47ab3d4a42e9ab51c465c4322d2ec233f6324e6b (patch)
treea61a0ffd83f4a3def4b36e5c8e99630c559aa723 /src/encoding/csv/writer_test.go
parentInitial commit. (diff)
downloadgolang-1.18-upstream.tar.xz
golang-1.18-upstream.zip
Adding upstream version 1.18.10.upstream/1.18.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--src/encoding/csv/writer_test.go112
1 files changed, 112 insertions, 0 deletions
diff --git a/src/encoding/csv/writer_test.go b/src/encoding/csv/writer_test.go
new file mode 100644
index 0000000..ab28b0d
--- /dev/null
+++ b/src/encoding/csv/writer_test.go
@@ -0,0 +1,112 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package csv
+
+import (
+ "bytes"
+ "errors"
+ "testing"
+)
+
+var writeTests = []struct {
+ Input [][]string
+ Output string
+ Error error
+ UseCRLF bool
+ Comma rune
+}{
+ {Input: [][]string{{"abc"}}, Output: "abc\n"},
+ {Input: [][]string{{"abc"}}, Output: "abc\r\n", UseCRLF: true},
+ {Input: [][]string{{`"abc"`}}, Output: `"""abc"""` + "\n"},
+ {Input: [][]string{{`a"b`}}, Output: `"a""b"` + "\n"},
+ {Input: [][]string{{`"a"b"`}}, Output: `"""a""b"""` + "\n"},
+ {Input: [][]string{{" abc"}}, Output: `" abc"` + "\n"},
+ {Input: [][]string{{"abc,def"}}, Output: `"abc,def"` + "\n"},
+ {Input: [][]string{{"abc", "def"}}, Output: "abc,def\n"},
+ {Input: [][]string{{"abc"}, {"def"}}, Output: "abc\ndef\n"},
+ {Input: [][]string{{"abc\ndef"}}, Output: "\"abc\ndef\"\n"},
+ {Input: [][]string{{"abc\ndef"}}, Output: "\"abc\r\ndef\"\r\n", UseCRLF: true},
+ {Input: [][]string{{"abc\rdef"}}, Output: "\"abcdef\"\r\n", UseCRLF: true},
+ {Input: [][]string{{"abc\rdef"}}, Output: "\"abc\rdef\"\n", UseCRLF: false},
+ {Input: [][]string{{""}}, Output: "\n"},
+ {Input: [][]string{{"", ""}}, Output: ",\n"},
+ {Input: [][]string{{"", "", ""}}, Output: ",,\n"},
+ {Input: [][]string{{"", "", "a"}}, Output: ",,a\n"},
+ {Input: [][]string{{"", "a", ""}}, Output: ",a,\n"},
+ {Input: [][]string{{"", "a", "a"}}, Output: ",a,a\n"},
+ {Input: [][]string{{"a", "", ""}}, Output: "a,,\n"},
+ {Input: [][]string{{"a", "", "a"}}, Output: "a,,a\n"},
+ {Input: [][]string{{"a", "a", ""}}, Output: "a,a,\n"},
+ {Input: [][]string{{"a", "a", "a"}}, Output: "a,a,a\n"},
+ {Input: [][]string{{`\.`}}, Output: "\"\\.\"\n"},
+ {Input: [][]string{{"x09\x41\xb4\x1c", "aktau"}}, Output: "x09\x41\xb4\x1c,aktau\n"},
+ {Input: [][]string{{",x09\x41\xb4\x1c", "aktau"}}, Output: "\",x09\x41\xb4\x1c\",aktau\n"},
+ {Input: [][]string{{"a", "a", ""}}, Output: "a|a|\n", Comma: '|'},
+ {Input: [][]string{{",", ",", ""}}, Output: ",|,|\n", Comma: '|'},
+ {Input: [][]string{{"foo"}}, Comma: '"', Error: errInvalidDelim},
+}
+
+func TestWrite(t *testing.T) {
+ for n, tt := range writeTests {
+ b := &bytes.Buffer{}
+ f := NewWriter(b)
+ f.UseCRLF = tt.UseCRLF
+ if tt.Comma != 0 {
+ f.Comma = tt.Comma
+ }
+ err := f.WriteAll(tt.Input)
+ if err != tt.Error {
+ t.Errorf("Unexpected error:\ngot %v\nwant %v", err, tt.Error)
+ }
+ out := b.String()
+ if out != tt.Output {
+ t.Errorf("#%d: out=%q want %q", n, out, tt.Output)
+ }
+ }
+}
+
+type errorWriter struct{}
+
+func (e errorWriter) Write(b []byte) (int, error) {
+ return 0, errors.New("Test")
+}
+
+func TestError(t *testing.T) {
+ b := &bytes.Buffer{}
+ f := NewWriter(b)
+ f.Write([]string{"abc"})
+ f.Flush()
+ err := f.Error()
+
+ if err != nil {
+ t.Errorf("Unexpected error: %s\n", err)
+ }
+
+ f = NewWriter(errorWriter{})
+ f.Write([]string{"abc"})
+ f.Flush()
+ err = f.Error()
+
+ if err == nil {
+ t.Error("Error should not be nil")
+ }
+}
+
+var benchmarkWriteData = [][]string{
+ {"abc", "def", "12356", "1234567890987654311234432141542132"},
+ {"abc", "def", "12356", "1234567890987654311234432141542132"},
+ {"abc", "def", "12356", "1234567890987654311234432141542132"},
+}
+
+func BenchmarkWrite(b *testing.B) {
+ for i := 0; i < b.N; i++ {
+ w := NewWriter(&bytes.Buffer{})
+ err := w.WriteAll(benchmarkWriteData)
+ if err != nil {
+ b.Fatal(err)
+ }
+ w.Flush()
+ }
+}