initial commits

escaped/bytes.go

@@ -0,0 +1,27 @@
+package escaped
+
+import (
+	"sourcecode.social/reiver/go-rfc2396/hex"
+)
+
+func Bytes(p []byte) (result []byte, rest []byte, ok bool) {
+	length := len(p)
+
+	if length < 3 {
+		return nil, p, false
+	}
+
+	p0, p1, p2 := p[0], p[1], p[2]
+
+	if '%' != p0 {
+		return nil, p, false
+	}
+	if !hex.ByteIs(p1) {
+		return nil, p, false
+	}
+	if !hex.ByteIs(p2) {
+		return nil, p, false
+	}
+
+	return p[:3], p[3:], true
+}

escaped/bytes_test.go

@@ -0,0 +1,225 @@
+package escaped_test
+
+import (
+	"testing"
+
+	"bytes"
+
+	"sourcecode.social/reiver/go-rfc2396/escaped"
+)
+
+func TestBytes(t *testing.T) {
+
+	tests := []struct{
+		Value []byte
+		ExpectedResult []byte
+		ExpectedRest []byte
+		ExpectedOK bool
+	}{
+		{
+			Value: nil,
+			ExpectedResult: nil,
+			ExpectedRest: nil,
+			ExpectedOK: false,
+		},
+		{
+			Value: []byte(nil),
+			ExpectedResult: nil,
+			ExpectedRest: nil,
+			ExpectedOK: false,
+		},
+
+
+
+		{
+			Value: []byte{},
+			ExpectedResult: nil,
+			ExpectedRest: nil,
+			ExpectedOK: false,
+		},
+		{
+			Value: []byte(""),
+			ExpectedResult: nil,
+			ExpectedRest: nil,
+			ExpectedOK: false,
+		},
+
+
+
+		{
+			Value:          []byte{'%','f','0',  '%','9','f',  '%','9','9',   '%','8','b'}, // == '🙂'
+			ExpectedResult: []byte{'%','f','0'},
+			ExpectedRest:                 []byte{'%','9','f',  '%','9','9',   '%','8','b'},
+			ExpectedOK: true,
+		},
+
+
+
+		{
+			Value:          []byte{'%','1','b',  '[','9','3',';','4','1','m',   'H','e','l','l','o',' ','w','o','r','l','d','!',   '%','1','b',   '[','0','m'},
+			ExpectedResult: []byte{'%','1','b'},
+			ExpectedRest:                 []byte{'[','9','3',';','4','1','m',   'H','e','l','l','o',' ','w','o','r','l','d','!',   '%','1','b',   '[','0','m'},
+			ExpectedOK: true,
+		},
+
+
+
+		{
+			Value:        []byte{'%','%','%','%'},
+			ExpectedResult: nil,
+			ExpectedRest: []byte{'%','%','%','%'},
+			ExpectedOK: false,
+		},
+		{
+			Value:        []byte{'%','%','%'},
+			ExpectedResult: nil,
+			ExpectedRest: []byte{'%','%','%'},
+			ExpectedOK: false,
+		},
+		{
+			Value:        []byte{'%','%'},
+			ExpectedResult: nil,
+			ExpectedRest: []byte{'%','%'},
+			ExpectedOK: false,
+		},
+		{
+			Value:        []byte{'%'},
+			ExpectedResult: nil,
+			ExpectedRest: []byte{'%'},
+			ExpectedOK: false,
+		},
+	}
+
+	for _, b := range []byte{'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'} {
+		test := struct{
+			Value []byte
+			ExpectedResult []byte
+			ExpectedRest []byte
+			ExpectedOK bool
+		}{
+			Value:        []byte{'%', b},
+			ExpectedResult:  nil,
+			ExpectedRest: []byte{'%', b},
+			ExpectedOK: false,
+		}
+
+		tests = append(tests, test)
+	}
+
+	for _, b1 := range []byte{'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'} {
+		for _, b2 := range []byte{'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'} {
+			test := struct{
+				Value []byte
+				ExpectedResult []byte
+				ExpectedRest []byte
+				ExpectedOK bool
+			}{
+				Value:          []byte{'%', b1, b2},
+				ExpectedResult: []byte{'%', b1, b2},
+				ExpectedRest:  nil,
+				ExpectedOK: true,
+			}
+
+			tests = append(tests, test)
+		}
+	}
+
+	for _, b1 := range []byte{'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'} {
+		for _, b2 := range []byte{'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'} {
+			test := struct{
+				Value []byte
+				ExpectedResult []byte
+				ExpectedRest []byte
+				ExpectedOK bool
+			}{
+				Value:          []byte{'%', b1, b2},
+				ExpectedResult: []byte{'%', b1, b2},
+				ExpectedRest:  nil,
+				ExpectedOK: true,
+			}
+
+			tests = append(tests, test)
+		}
+	}
+
+	for _, b1 := range []byte{'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'} {
+		for _, b2 := range []byte{'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'} {
+			test := struct{
+				Value []byte
+				ExpectedResult []byte
+				ExpectedRest []byte
+				ExpectedOK bool
+			}{
+				Value:          []byte{'%', b1, b2},
+				ExpectedResult: []byte{'%', b1, b2},
+				ExpectedRest:  nil,
+				ExpectedOK: true,
+			}
+
+			tests = append(tests, test)
+		}
+	}
+
+	for _, b1 := range []byte{'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'} {
+		for _, b2 := range []byte{'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'} {
+			test := struct{
+				Value []byte
+				ExpectedResult []byte
+				ExpectedRest []byte
+				ExpectedOK bool
+			}{
+				Value:          []byte{'%', b1, b2},
+				ExpectedResult: []byte{'%', b1, b2},
+				ExpectedRest:  nil,
+				ExpectedOK: true,
+			}
+
+			tests = append(tests, test)
+		}
+	}
+
+	for testNumber, test := range tests {
+
+		actualResult, actualRest, actualOK := escaped.Bytes(test.Value)
+
+		{
+			expected := test.ExpectedOK
+			actual   := actualOK
+
+			if expected != actual {
+				t.Errorf("For test #%d, the actual ok-result is not what was expected.", testNumber)
+				t.Logf("EXPECTED: %t", expected)
+				t.Logf("ACTUAL:   %t", actual)
+				t.Logf("VALUE: %q (%#v)", test.Value, test.Value)
+				continue
+			}
+		}
+
+		{
+			expected := test.ExpectedResult
+			actual   := actualResult
+
+			if !bytes.Equal(expected,actual) {
+				t.Errorf("For test #%d, the actual result is not what was expected.", testNumber)
+				t.Logf("EXPECTED: %q (%#v)", expected, expected)
+				t.Logf("ACTUAL:   %q (%#v)", actual, actual)
+				t.Logf("VALUE: %q (%#v)", test.Value, test.Value)
+				t.Logf("ACTUAL-REST:   %q (%#v)", actualRest, actualRest)
+				continue
+			}
+		}
+
+		{
+			expected := test.ExpectedRest
+			actual   := actualRest
+
+			if !bytes.Equal(expected,actual) {
+				t.Errorf("For test #%d, the actual rest-result is not what was expected.", testNumber)
+				t.Logf("EXPECTED: %q (%#v)", expected, expected)
+				t.Logf("ACTUAL:   %q (%#v)", actual, actual)
+				t.Logf("VALUE: %q (%#v)", test.Value, test.Value)
+				continue
+			}
+		}
+	}
+}