mirror of
https://github.com/1f349/readers.git
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50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
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package readers
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import (
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"github.com/stretchr/testify/assert"
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"io"
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"strings"
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"testing"
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)
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func TestNewCommentReader(t *testing.T) {
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t.Run("normal", func(t *testing.T) {
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r := NewCommentReader(strings.NewReader("Hello world! # this is a comment"), []string{"#"})
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all, err := io.ReadAll(r)
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assert.NoError(t, err)
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assert.Equal(t, "Hello world! ", string(all))
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all, err = io.ReadAll(r.Comment())
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assert.NoError(t, err)
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assert.Equal(t, "# this is a comment", string(all))
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})
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t.Run("overflow start", func(t *testing.T) {
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r := NewCommentReader(strings.NewReader(strings.Repeat("Hello world!", 2048)+" # this is a comment"), []string{"#"})
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all, err := io.ReadAll(r)
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assert.NoError(t, err)
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assert.Equal(t, strings.Repeat("Hello world!", 2048)+" ", string(all))
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all, err = io.ReadAll(r.Comment())
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assert.NoError(t, err)
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assert.Equal(t, "# this is a comment", string(all))
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})
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t.Run("overflow comment", func(t *testing.T) {
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r := NewCommentReader(strings.NewReader(strings.Repeat("Hello world!", 2048)+" # "+strings.Repeat("this is a comment", 2048)), []string{"#"})
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all, err := io.ReadAll(r)
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assert.NoError(t, err)
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assert.Equal(t, strings.Repeat("Hello world!", 2048)+" ", string(all))
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all, err = io.ReadAll(r.Comment())
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assert.NoError(t, err)
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assert.Equal(t, "# "+strings.Repeat("this is a comment", 2048), string(all))
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})
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}
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func FuzzCommentReader(f *testing.F) {
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f.Fuzz(func(t *testing.T, a string) {
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r := NewCommentReader(strings.NewReader(a), []string{"#"})
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b1, err := io.ReadAll(r)
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assert.NoError(t, err)
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b2, err := io.ReadAll(r.Comment())
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assert.NoError(t, err)
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assert.Equal(t, string(b1)+string(b2), a)
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})
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}
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