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tokenize_test.go
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tokenize_test.go
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package prose
import (
"encoding/json"
"path/filepath"
"reflect"
"testing"
)
var testdata = "testdata"
func checkTokens(t *testing.T, tokens []*Token, expected []string, name string) {
observed := []string{}
for i := range tokens {
observed = append(observed, tokens[i].Text)
}
if !reflect.DeepEqual(observed, expected) {
t.Errorf("%v: unexpected tokens", name)
}
}
func checkCase(t *testing.T, doc *Document, expected []string, name string) {
tokens := getTokenText(doc)
if !reflect.DeepEqual(tokens, expected) {
t.Errorf("%v: unexpected tokens", name)
}
}
func makeDoc(text string) (*Document, error) {
return NewDocument(
text,
WithSegmentation(false),
WithTagging(false),
WithExtraction(false))
}
func getTokenText(doc *Document) []string {
observed := []string{}
tokens := doc.Tokens()
for i := range tokens {
observed = append(observed, tokens[i].Text)
}
return observed
}
func getWordData(file string) ([]string, [][]string) {
in := readDataFile(filepath.Join(testdata, "treebank_sents.json"))
out := readDataFile(filepath.Join(testdata, file))
input := []string{}
output := [][]string{}
checkError(json.Unmarshal(in, &input))
checkError(json.Unmarshal(out, &output))
return input, output
}
func getWordBenchData() []string {
in := readDataFile(filepath.Join(testdata, "treebank_sents.json"))
input := []string{}
checkError(json.Unmarshal(in, &input))
return input
}
func TestTokenizationEmpty(t *testing.T) {
doc, _ := makeDoc("")
l := len(getTokenText(doc))
if l != 0 {
t.Errorf("TokenizationEmpty() expected = 0, got = %v", l)
}
}
func TestTokenizationSimple(t *testing.T) {
doc, _ := makeDoc("Vale is a natural language linter that supports plain text, markup (Markdown, reStructuredText, AsciiDoc, and HTML), and source code comments. Vale doesn't attempt to offer a one-size-fits-all collection of rules—instead, it strives to make customization as easy as possible.")
expected := []string{
"Vale", "is", "a", "natural", "language", "linter", "that", "supports",
"plain", "text", ",", "markup", "(", "Markdown", ",", "reStructuredText",
",", "AsciiDoc", ",", "and", "HTML", ")", ",", "and", "source",
"code", "comments", ".", "Vale", "does", "n't", "attempt", "to",
"offer", "a", "one-size-fits-all", "collection", "of", "rules—instead",
",", "it", "strives", "to", "make", "customization", "as", "easy", "as",
"possible", "."}
checkCase(t, doc, expected, "TokenizationSimple()")
}
func TestTokenizationTreebank(t *testing.T) {
input, output := getWordData("treebank_words.json")
for i, s := range input {
doc, _ := makeDoc(s)
tokens := getTokenText(doc)
if !reflect.DeepEqual(tokens, output[i]) {
t.Errorf("TokenizationTreebank(): unexpected tokens")
}
}
}
func TestTokenizationWeb(t *testing.T) {
web := `Independent of current body composition, IGF-I levels at 5 yr were significantly
associated with rate of weight gain between 0-2 yr (beta=0.19; P<0.0005);
and children who showed postnatal catch-up growth (i.e. those who showed gains in
weight or length between 0-2 yr by >0.67 SD score) had higher IGF-I levels than other
children (P=0.02; http://univ.edu.es/study.html) [20-22].`
expected := []string{"Independent", "of", "current", "body", "composition", ",", "IGF-I",
"levels", "at", "5", "yr", "were", "significantly", "associated", "with", "rate", "of",
"weight", "gain", "between", "0-2", "yr", "(", "beta=0.19", ";", "P<0.0005", ")", ";",
"and", "children", "who", "showed", "postnatal", "catch-up", "growth", "(", "i.e.", "those",
"who", "showed", "gains", "in", "weight", "or", "length", "between", "0-2", "yr", "by",
">0.67", "SD", "score", ")", "had", "higher", "IGF-I", "levels", "than", "other", "children",
"(", "P=0.02", ";", "http://univ.edu.es/study.html", ")", "[", "20-22", "]", "."}
doc, _ := makeDoc(web)
checkCase(t, doc, expected, "TokenizationWeb()")
}
func TestTokenizationWebParagraph(t *testing.T) {
web := `Independent of current body composition, IGF-I levels at 5 yr were significantly
associated with rate of weight gain between 0-2 yr (beta=0.19; P<0.0005);
and children who showed postnatal catch-up growth (i.e. those who showed gains in
weight or length between 0-2 yr by >0.67 SD score) had higher IGF-I levels than other
children (P=0.02; http://univ.edu.es/study.html) [20-22].
Independent of current body composition, IGF-I levels at 5 yr were significantly
associated with rate of weight gain between 0-2 yr (beta=0.19; P<0.0005);
and children who showed postnatal catch-up growth (i.e. those who showed gains in
weight or length between 0-2 yr by >0.67 SD score) had higher IGF-I levels than other
children (P=0.02; http://univ.edu.es/study.html) [20-22].
Independent of current body composition, IGF-I levels at 5 yr were significantly
associated with rate of weight gain between 0-2 yr (beta=0.19; P<0.0005);
and children who showed postnatal catch-up growth (i.e. those who showed gains in
weight or length between 0-2 yr by >0.67 SD score) had higher IGF-I levels than other
children (P=0.02; http://univ.edu.es/study.html) [20-22].`
expected := []string{"Independent", "of", "current", "body", "composition", ",", "IGF-I",
"levels", "at", "5", "yr", "were", "significantly", "associated", "with", "rate", "of",
"weight", "gain", "between", "0-2", "yr", "(", "beta=0.19", ";", "P<0.0005", ")", ";",
"and", "children", "who", "showed", "postnatal", "catch-up", "growth", "(", "i.e.", "those",
"who", "showed", "gains", "in", "weight", "or", "length", "between", "0-2", "yr", "by",
">0.67", "SD", "score", ")", "had", "higher", "IGF-I", "levels", "than", "other", "children",
"(", "P=0.02", ";", "http://univ.edu.es/study.html", ")", "[", "20-22", "]", ".", "Independent", "of", "current", "body", "composition", ",", "IGF-I",
"levels", "at", "5", "yr", "were", "significantly", "associated", "with", "rate", "of",
"weight", "gain", "between", "0-2", "yr", "(", "beta=0.19", ";", "P<0.0005", ")", ";",
"and", "children", "who", "showed", "postnatal", "catch-up", "growth", "(", "i.e.", "those",
"who", "showed", "gains", "in", "weight", "or", "length", "between", "0-2", "yr", "by",
">0.67", "SD", "score", ")", "had", "higher", "IGF-I", "levels", "than", "other", "children",
"(", "P=0.02", ";", "http://univ.edu.es/study.html", ")", "[", "20-22", "]", ".", "Independent", "of", "current", "body", "composition", ",", "IGF-I",
"levels", "at", "5", "yr", "were", "significantly", "associated", "with", "rate", "of",
"weight", "gain", "between", "0-2", "yr", "(", "beta=0.19", ";", "P<0.0005", ")", ";",
"and", "children", "who", "showed", "postnatal", "catch-up", "growth", "(", "i.e.", "those",
"who", "showed", "gains", "in", "weight", "or", "length", "between", "0-2", "yr", "by",
">0.67", "SD", "score", ")", "had", "higher", "IGF-I", "levels", "than", "other", "children",
"(", "P=0.02", ";", "http://univ.edu.es/study.html", ")", "[", "20-22", "]", "."}
doc, _ := makeDoc(web)
checkCase(t, doc, expected, "TokenizationWebParagraph()")
}
func TestTokenizationTwitter(t *testing.T) {
doc, _ := makeDoc("@twitter, what time does it start :-)")
expected := []string{"@twitter", ",", "what", "time", "does", "it", "start", ":-)"}
checkCase(t, doc, expected, "TokenizationWebParagraph(1)")
doc, _ = makeDoc("Mr. James plays basketball in the N.B.A., do you?")
expected = []string{
"Mr.", "James", "plays", "basketball", "in", "the", "N.B.A.", ",",
"do", "you", "?"}
checkCase(t, doc, expected, "TokenizationWebParagraph(2)")
doc, _ = makeDoc("ˌˌ kill the last letter")
expected = []string{"ˌˌ", "kill", "the", "last", "letter"}
checkCase(t, doc, expected, "TokenizationWebParagraph(3)")
doc, _ = makeDoc("ˌˌˌ kill the last letter")
expected = []string{"ˌˌˌ", "kill", "the", "last", "letter"}
checkCase(t, doc, expected, "TokenizationWebParagraph(4)")
doc, _ = makeDoc("March. July. March. June. January.")
expected = []string{
"March", ".", "July", ".", "March", ".", "June", ".", "January", "."}
checkCase(t, doc, expected, "TokenizationWebParagraph(5)")
}
func TestTokenizationSplitCases(t *testing.T) {
tokenizer := NewIterTokenizer(UsingSplitCases([]string{"("}))
tokens := tokenizer.Tokenize("amount($)")
expected := []string{"amount", "(", "$", ")"}
checkTokens(t, tokens, expected, "TokenizationSplitCases(custom-found)")
}
func TestTokenizationContractions(t *testing.T) {
tokenizer := NewIterTokenizer()
tokens := tokenizer.Tokenize("He's happy")
expected := []string{"He", "'s", "happy"}
checkTokens(t, tokens, expected, "TokenizationContraction(default-found)")
tokens = tokenizer.Tokenize("I've been better")
expected = []string{"I've", "been", "better"}
checkTokens(t, tokens, expected, "TokenizationContraction(default-missing)")
tokenizer = NewIterTokenizer(UsingContractions([]string{"'ve"}))
tokens = tokenizer.Tokenize("I've been better")
expected = []string{"I", "'ve", "been", "better"}
checkTokens(t, tokens, expected, "TokenizationContraction(custom-found)")
tokens = tokenizer.Tokenize("He's happy")
expected = []string{"He's", "happy"}
checkTokens(t, tokens, expected, "TokenizationContraction(custom-missing)")
}
func BenchmarkTokenization(b *testing.B) {
in := readDataFile(filepath.Join(testdata, "sherlock.txt"))
text := string(in)
for n := 0; n < b.N; n++ {
_, err := makeDoc(text)
if err != nil {
panic(err)
}
}
}
func BenchmarkTokenizationSimple(b *testing.B) {
for n := 0; n < b.N; n++ {
for _, s := range getWordBenchData() {
_, err := makeDoc(s)
if err != nil {
panic(err)
}
}
}
}