111 lines
2.6 KiB
Go
111 lines
2.6 KiB
Go
package utf8_test
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import (
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"github.com/reiver/go-utf8"
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"strings"
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"testing"
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)
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func TestRuneWriter(t *testing.T) {
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tests := []struct{
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Runes []rune
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Expected string
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}{
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{
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Runes: []rune{},
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Expected: "",
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},
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{
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Runes: []rune{'a','p','p','l','e'},
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Expected: "apple",
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},
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{
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Runes: []rune{'B','A','N','A','N','A'},
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Expected: "BANANA",
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},
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{
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Runes: []rune{'C','h','e','r','r','y'},
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Expected: "Cherry",
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},
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{
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Runes: []rune{'d','A','T','E'},
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Expected: "dATE",
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},
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{
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Runes: []rune{'😀','😁','😂','😃','😄','😅','😆','😇','😈','😉','😊','😋','😌','😍','😎','😏'},
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Expected: "😀😁😂😃😄😅😆😇😈😉😊😋😌😍😎😏",
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},
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{
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Runes: []rune{'H','i','!','\u2029','👾','\u2029','S','e','e',' ','y','a','\u2029'},
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Expected: "Hi!\u2029👾\u2029See ya\u2029",
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},
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}
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TestLoop: for testNumber, test := range tests {
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var buffer strings.Builder
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var total int
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runeWriter := utf8.WrapRuneWriter(&buffer)
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for runeNumber, r := range test.Runes {
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n, err := runeWriter.WriteRune(r)
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if nil != err {
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t.Errorf("For test #%d and rune #%d, did not expect an error, but actually got one.", testNumber, runeNumber)
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for i, rr := range test.Runes {
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t.Logf("\t[%d] %q (%d)", i, string(rr), rr)
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}
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t.Logf("ERROR TYPE: %T", err)
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t.Logf("ERROR: %q", err)
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continue TestLoop
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}
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if expected, actual := n, utf8.RuneLength(r); expected != actual {
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t.Errorf("For test #%d and rune #%d, expected a certain number of bytes to be written, but actually wasn't.", testNumber, runeNumber)
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for i, rr := range test.Runes {
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t.Logf("\t[%d] %q (%d)", i, string(rr), rr)
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}
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t.Logf("RUNE: %q (%d)", string(r), r)
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t.Logf("EXPECTED: %d", expected)
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t.Logf("ACTUAL: %d", actual)
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continue TestLoop
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}
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total += n
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}
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if expected, actual := len(test.Expected), total; expected != actual {
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t.Errorf("For test #%d, expected the total number of bytes to be written to be something, but actually wasn't.", testNumber)
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for i, rr := range test.Runes {
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t.Logf("\t[%d] %q (%d)", i, string(rr), rr)
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}
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t.Logf("EXPECTED: %d", expected)
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t.Logf("ACTUAL: %d", actual)
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continue TestLoop
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}
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if expected, actual := test.Expected, buffer.String(); expected != actual {
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t.Errorf("For test #%d, what what expected to be written, is not what was actually written.", testNumber)
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for i, rr := range test.Runes {
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t.Logf("\t[%d] %q (%d)", i, string(rr), rr)
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}
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t.Logf("EXPECTED: %q", expected)
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t.Logf("ACTUAL: %q", actual)
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continue TestLoop
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}
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}
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}
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