117 lines
2.8 KiB
Go
117 lines
2.8 KiB
Go
package cui
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import (
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"reflect"
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"testing"
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)
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func Test_wrapLines_doesnt_break_indents(t *testing.T) {
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indent := " "
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tables := []struct {
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testinput []string
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expectedoutput []string
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linelength int
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}{
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{
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//indented long word - 20 characters - should not wrap
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[]string{indent + "012345678"},
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[]string{indent + "012345678"},
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20,
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},
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{
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//indented long word - 21 characters - should wrap
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[]string{indent + "0123456789"},
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[]string{indent + "012345678", indent + "9"},
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20,
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},
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{
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//indented really long word - should wrap
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[]string{indent + "0123456789zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz"},
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[]string{
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indent + "012345678",
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indent + "9zzzzzzzz",
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indent + "zzzzzzzzz",
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indent + "zzzzzzzzz",
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indent + "zzzzz"},
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20,
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}, {
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//non-indented long word - 20 characters - should not wrap
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[]string{"01234567890123456789"},
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[]string{"01234567890123456789"},
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20,
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},
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{
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//non-indented long word - 21 characters - should wrap
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[]string{"01234567890123456789a"},
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[]string{"01234567890123456789", "a"},
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20,
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},
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{
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//non-indented really long word - should wrap
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[]string{"01234567890123456789zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz"},
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[]string{
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"01234567890123456789",
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"zzzzzzzzzzzzzzzzzzzz",
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"zzzzzzzzzzzzzzzzzzzz",
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"zzzzzzzzzzzzzzzzzzzz",
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"zzzz"},
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20,
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},
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{
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//indented normal sentence - 20 characters - should not wrap
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[]string{indent + "it is her"},
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[]string{indent + "it is her"},
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20,
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},
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{
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//indented normal sentence - more than 20 characters - should wrap
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[]string{indent + "it is her favourite thing in the world"},
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[]string{
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indent + "it is her",
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indent + "favourite",
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indent + "thing in",
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indent + "the world",
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},
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20,
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},
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{
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//non-indented normal sentence - 20 characters - should not wrap
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[]string{"it is her fav thingy"},
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[]string{"it is her fav thingy"},
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20,
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},
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{
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//non-indented normal sentence - more than 20 characters - should wrap
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[]string{"it is her favourite thing in the world"},
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[]string{
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"it is her favourite",
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"thing in the world",
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},
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20,
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},
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//TODO further tests
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//lines that are just spaces don't get misidentified as indents and then mangled
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}
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for _, table := range tables {
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output := wrapLines(table.testinput, table.linelength)
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if !reflect.DeepEqual(output, table.expectedoutput) {
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t.Errorf("Expected %v, got %v", table.expectedoutput, output)
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}
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}
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}
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func Benchmark_wrapLines(b *testing.B) {
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indent := " "
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teststring := []string{
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indent + "0123456789\n",
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indent + "a really long line that will prolly be wrapped\n",
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indent + "a l i n e w i t h a l o t o f w o r d s\n",
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}
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b.ResetTimer()
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for n := 0; n < b.N; n++ {
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wrapLines(teststring, 20)
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}
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}
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