package fsnoder
import (
"github.com/go-git/go-git/v5/utils/merkletrie/noder"
. "gopkg.in/check.v1"
)
type FSNoderSuite struct{}
var _ = Suite(&FSNoderSuite{})
func check(c *C, input string, expected *dir) {
obtained, err := New(input)
c.Assert(err, IsNil, Commentf("input = %s", input))
comment := Commentf("\n input = %s\n"+
"expected = %s\nobtained = %s",
input, expected, obtained)
c.Assert(obtained.Hash(), DeepEquals, expected.Hash(), comment)
}
func (s *FSNoderSuite) TestNoDataFails(c *C) {
_, err := New("")
c.Assert(err, Not(IsNil))
_, err = New(" ") // SPC + TAB
c.Assert(err, Not(IsNil))
}
func (s *FSNoderSuite) TestUnnamedRootFailsIfNotRoot(c *C) {
_, err := decodeDir([]byte("()"), false)
c.Assert(err, Not(IsNil))
}
func (s *FSNoderSuite) TestUnnamedInnerFails(c *C) {
_, err := New("(())")
c.Assert(err, Not(IsNil))
_, err = New("((a<>))")
c.Assert(err, Not(IsNil))
}
func (s *FSNoderSuite) TestMalformedFile(c *C) {
_, err := New("(4<>)")
c.Assert(err, Not(IsNil))
_, err = New("(4<1>)")
c.Assert(err, Not(IsNil))
_, err = New("(4?1>)")
c.Assert(err, Not(IsNil))
_, err = New("(4<a>)")
c.Assert(err, Not(IsNil))
_, err = New("(4<a?)")
c.Assert(err, Not(IsNil))
_, err = decodeFile([]byte("a?1>"))
c.Assert(err, Not(IsNil))
_, err = decodeFile([]byte("a<a>"))
c.Assert(err, Not(IsNil))
_, err = decodeFile([]byte("a<1?"))
c.Assert(err, Not(IsNil))
_, err = decodeFile([]byte("a?>"))
c.Assert(err, Not(IsNil))
_, err = decodeFile([]byte("1<>"))
c.Assert(err, Not(IsNil))
_, err = decodeFile([]byte("a<?"))
c.Assert(err, Not(IsNil))
}
func (s *FSNoderSuite) TestMalformedRootFails(c *C) {
_, err := New(")")
c.Assert(err, Not(IsNil))
_, err = New("(")
c.Assert(err, Not(IsNil))
_, err = New("(a<>")
c.Assert(err, Not(IsNil))
_, err = New("a<>")
c.Assert(err, Not(IsNil))
}
func (s *FSNoderSuite) TestUnnamedEmptyRoot(c *C) {
input := "()"
expected, err := newDir("", nil)
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestNamedEmptyRoot(c *C) {
input := "a()"
expected, err := newDir("a", nil)
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestEmptyFile(c *C) {
input := "(a<>)"
a1, err := newFile("a", "")
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{a1})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestNonEmptyFile(c *C) {
input := "(a<1>)"
a1, err := newFile("a", "1")
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{a1})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestTwoFilesSameContents(c *C) {
input := "(b<1> a<1>)"
a1, err := newFile("a", "1")
c.Assert(err, IsNil)
b1, err := newFile("b", "1")
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{a1, b1})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestTwoFilesDifferentContents(c *C) {
input := "(b<2> a<1>)"
a1, err := newFile("a", "1")
c.Assert(err, IsNil)
b2, err := newFile("b", "2")
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{a1, b2})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestManyFiles(c *C) {
input := "(e<1> b<2> a<1> c<1> d<3> f<4>)"
a1, err := newFile("a", "1")
c.Assert(err, IsNil)
b2, err := newFile("b", "2")
c.Assert(err, IsNil)
c1, err := newFile("c", "1")
c.Assert(err, IsNil)
d3, err := newFile("d", "3")
c.Assert(err, IsNil)
e1, err := newFile("e", "1")
c.Assert(err, IsNil)
f4, err := newFile("f", "4")
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{e1, b2, a1, c1, d3, f4})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestEmptyDir(c *C) {
input := "(A())"
A, err := newDir("A", nil)
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{A})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestDirWithEmptyFile(c *C) {
input := "(A(a<>))"
a, err := newFile("a", "")
c.Assert(err, IsNil)
A, err := newDir("A", []noder.Noder{a})
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{A})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestDirWithEmptyFileSameName(c *C) {
input := "(A(A<>))"
f, err := newFile("A", "")
c.Assert(err, IsNil)
A, err := newDir("A", []noder.Noder{f})
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{A})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestDirWithFileLongContents(c *C) {
input := "(A(a<12>))"
a1, err := newFile("a", "12")
c.Assert(err, IsNil)
A, err := newDir("A", []noder.Noder{a1})
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{A})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestDirWithFileLongName(c *C) {
input := "(A(abc<12>))"
a1, err := newFile("abc", "12")
c.Assert(err, IsNil)
A, err := newDir("A", []noder.Noder{a1})
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{A})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestDirWithFile(c *C) {
input := "(A(a<1>))"
a1, err := newFile("a", "1")
c.Assert(err, IsNil)
A, err := newDir("A", []noder.Noder{a1})
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{A})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestDirWithEmptyDirSameName(c *C) {
input := "(A(A()))"
A2, err := newDir("A", nil)
c.Assert(err, IsNil)
A1, err := newDir("A", []noder.Noder{A2})
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{A1})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestDirWithEmptyDir(c *C) {
input := "(A(B()))"
B, err := newDir("B", nil)
c.Assert(err, IsNil)
A, err := newDir("A", []noder.Noder{B})
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{A})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestDirWithTwoFiles(c *C) {
input := "(A(a<1> b<2>))"
a1, err := newFile("a", "1")
c.Assert(err, IsNil)
b2, err := newFile("b", "2")
c.Assert(err, IsNil)
A, err := newDir("A", []noder.Noder{b2, a1})
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{A})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestCrazy(c *C) {
// ""
// |
// -------------------------
// | | | | |
// a1 B c1 d2 E
// | |
// ------------- E
// | | | | |
// A B X c1 E
// | |
// a1 e1
input := "(d<2> b(c<1> b() a() x(a<1>)) a<1> c<1> e(e(e(e<1>))))"
e1, err := newFile("e", "1")
c.Assert(err, IsNil)
E, err := newDir("e", []noder.Noder{e1})
c.Assert(err, IsNil)
E, err = newDir("e", []noder.Noder{E})
c.Assert(err, IsNil)
E, err = newDir("e", []noder.Noder{E})
c.Assert(err, IsNil)
A, err := newDir("a", nil)
c.Assert(err, IsNil)
B, err := newDir("b", nil)
c.Assert(err, IsNil)
a1, err := newFile("a", "1")
c.Assert(err, IsNil)
X, err := newDir("x", []noder.Noder{a1})
c.Assert(err, IsNil)
c1, err := newFile("c", "1")
c.Assert(err, IsNil)
B, err = newDir("b", []noder.Noder{c1, B, X, A})
c.Assert(err, IsNil)
a1, err = newFile("a", "1")
c.Assert(err, IsNil)
c1, err = newFile("c", "1")
c.Assert(err, IsNil)
d2, err := newFile("d", "2")
c.Assert(err, IsNil)
expected, err := newDir("", []noder.Noder{a1, d2, E, B, c1})
c.Assert(err, IsNil)
check(c, input, expected)
}
func (s *FSNoderSuite) TestHashEqual(c *C) {
input1 := "(A(a<1> b<2>))"
input2 := "(A(a<1> b<2>))"
input3 := "(A(a<> b<2>))"
t1, err := New(input1)
c.Assert(err, IsNil)
t2, err := New(input2)
c.Assert(err, IsNil)
t3, err := New(input3)
c.Assert(err, IsNil)
c.Assert(HashEqual(t1, t2), Equals, true)
c.Assert(HashEqual(t2, t1), Equals, true)
c.Assert(HashEqual(t2, t3), Equals, false)
c.Assert(HashEqual(t3, t2), Equals, false)
c.Assert(HashEqual(t3, t1), Equals, false)
c.Assert(HashEqual(t1, t3), Equals, false)
}
