whatcanGOwrong

go/pkg/mod/github.com/cosiner/argv@v0.1.0/scanner_test.go

@@ -0,0 +1,105 @@
+package argv
+
+import (
+	"math"
+	"testing"
+)
+
+var (
+	parseText = ` a aa a'aa' a"aa"a
+		 a$PATH a"$PATH" a'$PATH'
+		 a"$*" a"$0" a"$\"
+		 a| a|a
+		 a"\A" a"\a\b\f\n\r\t\v\\\$" \t a'\A' a'\t'` +
+		" a`ls /` `ls ~`"
+)
+
+func TestScanner(t *testing.T) {
+	gots, err := Scan(
+		parseText,
+	)
+	if err != nil {
+		t.Fatal(err)
+	}
+	expects := []Token{
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("aa")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokStringSingleQuote, Value: []rune("aa")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokStringDoubleQuote, Value: []rune("aa")},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a$PATH")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokStringDoubleQuote, Value: []rune("$PATH")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokStringSingleQuote, Value: []rune("$PATH")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokStringDoubleQuote, Value: []rune("$*")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokStringDoubleQuote, Value: []rune("$0")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokStringDoubleQuote, Value: []rune("$\\")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokPipe},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokPipe},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokStringDoubleQuote, Value: []rune("\\A")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokStringDoubleQuote, Value: []rune("\a\b\f\n\r\t\v\\$")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("t")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokStringSingleQuote, Value: []rune("\\A")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokStringSingleQuote, Value: []rune("\t")},
+		{Type: TokSpace},
+		{Type: TokString, Value: []rune("a")},
+		{Type: TokBackQuote, Value: []rune("ls /")},
+		{Type: TokSpace},
+		{Type: TokBackQuote, Value: []rune("ls ~")},
+		{Type: TokEOF},
+	}
+	if len(gots) != len(expects) {
+		t.Errorf("token count is not equal: expect %d, got %d", len(expects), len(gots))
+	}
+	l := int(math.Min(float64(len(gots)), float64(len(expects))))
+	for i := 0; i < l; i++ {
+		got := gots[i]
+		expect := expects[i]
+		if got.Type != expect.Type {
+			t.Errorf("token type is not equal: %d: expect %d, got %d", i, expect.Type, got.Type)
+		}
+
+		if expect.Type != TokSpace && string(got.Value) != string(expect.Value) {
+			t.Errorf("token value is not equal: %d: expect %s, got %s", i, string(expect.Value), string(got.Value))
+		}
+	}
+
+	for _, text := range []string{
+		`a"`, `a'`, `a"\`, "`ls ~", `a\`,
+	} {
+		_, err := Scan(text)
+		if err != ErrInvalidSyntax {
+			t.Errorf("expect unexpected eof error, but got: %v", err)
+		}
+	}
+}