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package dnsutil
import "testing"
func TestAddOrigin(t *testing.T) {
var tests = []struct{ e1, e2, expected string }{
{"@", "example.com", "example.com"},
{"foo", "example.com", "foo.example.com"},
{"foo.", "example.com", "foo."},
{"@", "example.com.", "example.com."},
{"foo", "example.com.", "foo.example.com."},
{"foo.", "example.com.", "foo."},
{"example.com", ".", "example.com."},
{"example.com.", ".", "example.com."},
// Oddball tests:
// In general origin should not be "" or "." but at least
// these tests verify we don't crash and will keep results
// from changing unexpectedly.
{"*.", "", "*."},
{"@", "", "@"},
{"foobar", "", "foobar"},
{"foobar.", "", "foobar."},
{"*.", ".", "*."},
{"@", ".", "."},
{"foobar", ".", "foobar."},
{"foobar.", ".", "foobar."},
}
for _, test := range tests {
actual := AddOrigin(test.e1, test.e2)
if test.expected != actual {
t.Errorf("AddOrigin(%#v, %#v) expected %#v, got %#v\n", test.e1, test.e2, test.expected, actual)
}
}
}
func TestTrimDomainName(t *testing.T) {
// Basic tests.
// Try trimming "example.com" and "example.com." from typical use cases.
testsEx := []struct{ experiment, expected string }{
{"foo.example.com", "foo"},
{"foo.example.com.", "foo"},
{".foo.example.com", ".foo"},
{".foo.example.com.", ".foo"},
{"*.example.com", "*"},
{"example.com", "@"},
{"example.com.", "@"},
{"com.", "com."},
{"foo.", "foo."},
{"serverfault.com.", "serverfault.com."},
{"serverfault.com", "serverfault.com"},
{".foo.ronco.com", ".foo.ronco.com"},
{".foo.ronco.com.", ".foo.ronco.com."},
}
for _, dom := range []string{"example.com", "example.com."} {
for i, test := range testsEx {
actual := TrimDomainName(test.experiment, dom)
if test.expected != actual {
t.Errorf("%d TrimDomainName(%#v, %#v): expected %v, got %v\n", i, test.experiment, dom, test.expected, actual)
}
}
}
// Paranoid tests.
// These test shouldn't be needed but I was weary of off-by-one errors.
// In theory, these can't happen because there are no single-letter TLDs,
// but it is good to exercize the code this way.
tests := []struct{ experiment, expected string }{
{"", "@"},
{".", "."},
{"a.b.c.d.e.f.", "a.b.c.d.e"},
{"b.c.d.e.f.", "b.c.d.e"},
{"c.d.e.f.", "c.d.e"},
{"d.e.f.", "d.e"},
{"e.f.", "e"},
{"f.", "@"},
{".a.b.c.d.e.f.", ".a.b.c.d.e"},
{".b.c.d.e.f.", ".b.c.d.e"},
{".c.d.e.f.", ".c.d.e"},
{".d.e.f.", ".d.e"},
{".e.f.", ".e"},
{".f.", "@"},
{"a.b.c.d.e.f", "a.b.c.d.e"},
{"a.b.c.d.e.", "a.b.c.d.e."},
{"a.b.c.d.e", "a.b.c.d.e"},
{"a.b.c.d.", "a.b.c.d."},
{"a.b.c.d", "a.b.c.d"},
{"a.b.c.", "a.b.c."},
{"a.b.c", "a.b.c"},
{"a.b.", "a.b."},
{"a.b", "a.b"},
{"a.", "a."},
{"a", "a"},
{".a.b.c.d.e.f", ".a.b.c.d.e"},
{".a.b.c.d.e.", ".a.b.c.d.e."},
{".a.b.c.d.e", ".a.b.c.d.e"},
{".a.b.c.d.", ".a.b.c.d."},
{".a.b.c.d", ".a.b.c.d"},
{".a.b.c.", ".a.b.c."},
{".a.b.c", ".a.b.c"},
{".a.b.", ".a.b."},
{".a.b", ".a.b"},
{".a.", ".a."},
{".a", ".a"},
}
for _, dom := range []string{"f", "f."} {
for i, test := range tests {
actual := TrimDomainName(test.experiment, dom)
if test.expected != actual {
t.Errorf("%d TrimDomainName(%#v, %#v): expected %v, got %v\n", i, test.experiment, dom, test.expected, actual)
}
}
}
// Test cases for bugs found in the wild.
// These test cases provide both origin, s, and the expected result.
// If you find a bug in the while, this is probably the easiest place
// to add it as a test case.
var testsWild = []struct{ e1, e2, expected string }{
{"mathoverflow.net.", ".", "mathoverflow.net"},
{"mathoverflow.net", ".", "mathoverflow.net"},
{"", ".", "@"},
{"@", ".", "@"},
}
for i, test := range testsWild {
actual := TrimDomainName(test.e1, test.e2)
if test.expected != actual {
t.Errorf("%d TrimDomainName(%#v, %#v): expected %v, got %v\n", i, test.e1, test.e2, test.expected, actual)
}
}
}