--- /dev/null
+Execute(ale#path#Upwards should return the correct path components):
+ if has('unix')
+ " Absolute paths should include / on the end.
+ AssertEqual
+ \ ['/foo/bar/baz', '/foo/bar', '/foo', '/'],
+ \ ale#path#Upwards('/foo/bar/baz')
+ AssertEqual
+ \ ['/foo/bar/baz', '/foo/bar', '/foo', '/'],
+ \ ale#path#Upwards('/foo/bar/baz///')
+ " Relative paths do not.
+ AssertEqual
+ \ ['foo/bar/baz', 'foo/bar', 'foo'],
+ \ ale#path#Upwards('foo/bar/baz')
+ AssertEqual
+ \ ['foo2/bar', 'foo2'],
+ \ ale#path#Upwards('foo//..////foo2////bar')
+ " Expect an empty List for empty strings.
+ AssertEqual [], ale#path#Upwards('')
+ endif
+
+ if has('win32')
+ AssertEqual
+ \ ['C:\foo\bar\baz', 'C:\foo\bar', 'C:\foo', 'C:\'],
+ \ ale#path#Upwards('C:\foo\bar\baz')
+ AssertEqual
+ \ ['C:\foo\bar\baz', 'C:\foo\bar', 'C:\foo', 'C:\'],
+ \ ale#path#Upwards('C:\foo\bar\baz\\\')
+ AssertEqual
+ \ ['/foo\bar\baz', '/foo\bar', '/foo', '/'],
+ \ ale#path#Upwards('/foo/bar/baz')
+ AssertEqual
+ \ ['foo\bar\baz', 'foo\bar', 'foo'],
+ \ ale#path#Upwards('foo/bar/baz')
+ AssertEqual
+ \ ['foo\bar\baz', 'foo\bar', 'foo'],
+ \ ale#path#Upwards('foo\bar\baz')
+ " simplify() is used internally, and should sort out \ paths when actually
+ " running Windows, which we can't test here.
+ AssertEqual
+ \ ['foo2\bar', 'foo2'],
+ \ ale#path#Upwards('foo//..///foo2////bar')
+ " Expect an empty List for empty strings.
+ AssertEqual [], ale#path#Upwards('')
+ " Paths starting with // return /
+ AssertEqual
+ \ ['/foo2\bar', '/foo2', '/'],
+ \ ale#path#Upwards('//foo//..///foo2////bar')
+ endif