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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2013 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package generator
import (
"testing"
"github.com/golang/protobuf/protoc-gen-go/descriptor"
)
func TestCamelCase(t *testing.T) {
tests := []struct {
in, want string
}{
{"one", "One"},
{"one_two", "OneTwo"},
{"_my_field_name_2", "XMyFieldName_2"},
{"Something_Capped", "Something_Capped"},
{"my_Name", "My_Name"},
{"OneTwo", "OneTwo"},
{"_", "X"},
{"_a_", "XA_"},
}
for _, tc := range tests {
if got := CamelCase(tc.in); got != tc.want {
t.Errorf("CamelCase(%q) = %q, want %q", tc.in, got, tc.want)
}
}
}
func TestGoPackageOption(t *testing.T) {
tests := []struct {
in string
impPath GoImportPath
pkg GoPackageName
ok bool
}{
{"", "", "", false},
{"foo", "", "foo", true},
{"github.com/golang/bar", "github.com/golang/bar", "bar", true},
{"github.com/golang/bar;baz", "github.com/golang/bar", "baz", true},
{"github.com/golang/string", "github.com/golang/string", "string", true},
}
for _, tc := range tests {
d := &FileDescriptor{
FileDescriptorProto: &descriptor.FileDescriptorProto{
Options: &descriptor.FileOptions{
GoPackage: &tc.in,
},
},
}
impPath, pkg, ok := d.goPackageOption()
if impPath != tc.impPath || pkg != tc.pkg || ok != tc.ok {
t.Errorf("go_package = %q => (%q, %q, %t), want (%q, %q, %t)", tc.in,
impPath, pkg, ok, tc.impPath, tc.pkg, tc.ok)
}
}
}
func TestPackageNames(t *testing.T) {
g := New()
g.packageNames = make(map[GoImportPath]GoPackageName)
g.usedPackageNames = make(map[GoPackageName]bool)
for _, test := range []struct {
importPath GoImportPath
want GoPackageName
}{
{"github.com/golang/foo", "foo"},
{"github.com/golang/second/package/named/foo", "foo1"},
{"github.com/golang/third/package/named/foo", "foo2"},
{"github.com/golang/conflicts/with/predeclared/ident/string", "string1"},
} {
if got := g.GoPackageName(test.importPath); got != test.want {
t.Errorf("GoPackageName(%v) = %v, want %v", test.importPath, got, test.want)
}
}
}
func TestUnescape(t *testing.T) {
tests := []struct {
in string
out string
}{
// successful cases, including all kinds of escapes
{"", ""},
{"foo bar baz frob nitz", "foo bar baz frob nitz"},
{`\000\001\002\003\004\005\006\007`, string([]byte{0, 1, 2, 3, 4, 5, 6, 7})},
{`\a\b\f\n\r\t\v\\\?\'\"`, string([]byte{'\a', '\b', '\f', '\n', '\r', '\t', '\v', '\\', '?', '\'', '"'})},
{`\x10\x20\x30\x40\x50\x60\x70\x80`, string([]byte{16, 32, 48, 64, 80, 96, 112, 128})},
// variable length octal escapes
{`\0\018\222\377\3\04\005\6\07`, string([]byte{0, 1, '8', 0222, 255, 3, 4, 5, 6, 7})},
// malformed escape sequences left as is
{"foo \\g bar", "foo \\g bar"},
{"foo \\xg0 bar", "foo \\xg0 bar"},
{"\\", "\\"},
{"\\x", "\\x"},
{"\\xf", "\\xf"},
{"\\777", "\\777"}, // overflows byte
}
for _, tc := range tests {
s := unescape(tc.in)
if s != tc.out {
t.Errorf("doUnescape(%q) = %q; should have been %q", tc.in, s, tc.out)
}
}
}