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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package compatibility_test
import (
"github.com/snapcore/snapd/interfaces/compatibility"
. "gopkg.in/check.v1"
)
func (s *CompatSuite) TestOperatorString(c *C) {
var exp compatibility.Expression
op := &compatibility.Operator{Oper: compatibility.Item{compatibility.ItemOR, "", compatibility.CompatField{}}}
exp = op
c.Check(exp.String(), Equals, `"OR"`)
op = &compatibility.Operator{Oper: compatibility.Item{compatibility.ItemAND, "", compatibility.CompatField{}}}
exp = op
c.Check(exp.String(), Equals, `"AND"`)
}
func (s *CompatSuite) TestParserValidExpressions(c *C) {
for i, tc := range []struct {
expression string
tree *compatibility.Node
labels []compatibility.CompatField
}{
{"foo",
&compatibility.Node{Exp: &compatibility.CompatField{
[]compatibility.CompatDimension{{"foo", []compatibility.CompatRange{{0, 0}}}}}},
[]compatibility.CompatField{{Dimensions: []compatibility.CompatDimension{{Tag: "foo", Values: []compatibility.CompatRange{{Min: 0, Max: 0}}}}}},
},
{"foo-7-4 OR bar",
&compatibility.Node{
Exp: &compatibility.Operator{compatibility.Item{compatibility.ItemOR, "", compatibility.CompatField{}}},
Left: &compatibility.Node{
Exp: &compatibility.CompatField{
Dimensions: []compatibility.CompatDimension{
{Tag: "foo", Values: []compatibility.CompatRange{{7, 7}, {4, 4}}}},
},
},
Right: &compatibility.Node{
Exp: &compatibility.CompatField{
Dimensions: []compatibility.CompatDimension{
{Tag: "bar", Values: []compatibility.CompatRange{{0, 0}}}},
},
},
},
[]compatibility.CompatField{
{Dimensions: []compatibility.CompatDimension{
{Tag: "foo", Values: []compatibility.CompatRange{{Min: 7, Max: 7}, {Min: 4, Max: 4}}},
}},
{Dimensions: []compatibility.CompatDimension{
{Tag: "bar", Values: []compatibility.CompatRange{{Min: 0, Max: 0}}},
}},
},
},
{"((foo AND bar-(1..10)))",
&compatibility.Node{
Exp: &compatibility.Operator{compatibility.Item{compatibility.ItemAND, "", compatibility.CompatField{}}},
Left: &compatibility.Node{
Exp: &compatibility.CompatField{
Dimensions: []compatibility.CompatDimension{
{Tag: "foo", Values: []compatibility.CompatRange{{0, 0}}}},
},
},
Right: &compatibility.Node{
Exp: &compatibility.CompatField{
Dimensions: []compatibility.CompatDimension{
{Tag: "bar", Values: []compatibility.CompatRange{{1, 10}}}},
},
},
},
[]compatibility.CompatField{
{Dimensions: []compatibility.CompatDimension{
{Tag: "foo", Values: []compatibility.CompatRange{{Min: 0, Max: 0}}},
}},
{Dimensions: []compatibility.CompatDimension{
{Tag: "bar", Values: []compatibility.CompatRange{{Min: 1, Max: 10}}},
}},
},
},
{"(foo AND bar) OR baz-(5..6)-(5..56)",
&compatibility.Node{
Exp: &compatibility.Operator{compatibility.Item{compatibility.ItemOR, "", compatibility.CompatField{}}},
Left: &compatibility.Node{
Exp: &compatibility.Operator{compatibility.Item{compatibility.ItemAND, "", compatibility.CompatField{}}},
Left: &compatibility.Node{
Exp: &compatibility.CompatField{
Dimensions: []compatibility.CompatDimension{
{Tag: "foo", Values: []compatibility.CompatRange{{0, 0}}}},
},
},
Right: &compatibility.Node{
Exp: &compatibility.CompatField{
Dimensions: []compatibility.CompatDimension{
{Tag: "bar", Values: []compatibility.CompatRange{{0, 0}}}},
},
}},
Right: &compatibility.Node{
Exp: &compatibility.CompatField{
Dimensions: []compatibility.CompatDimension{
{Tag: "baz", Values: []compatibility.CompatRange{{5, 6}, {5, 56}}}},
},
},
},
[]compatibility.CompatField{
{Dimensions: []compatibility.CompatDimension{
{Tag: "foo", Values: []compatibility.CompatRange{{Min: 0, Max: 0}}},
}},
{Dimensions: []compatibility.CompatDimension{
{Tag: "bar", Values: []compatibility.CompatRange{{Min: 0, Max: 0}}},
}},
{Dimensions: []compatibility.CompatDimension{
{Tag: "baz", Values: []compatibility.CompatRange{{Min: 5, Max: 6}, {Min: 5, Max: 56}}},
}},
},
},
{"foo-0-blah-5 AND (bar OR baz)",
&compatibility.Node{
Exp: &compatibility.Operator{compatibility.Item{compatibility.ItemAND, "", compatibility.CompatField{}}},
Left: &compatibility.Node{
Exp: &compatibility.CompatField{
Dimensions: []compatibility.CompatDimension{
{Tag: "foo", Values: []compatibility.CompatRange{{0, 0}}},
{Tag: "blah", Values: []compatibility.CompatRange{{5, 5}}},
},
},
},
Right: &compatibility.Node{
Exp: &compatibility.Operator{compatibility.Item{compatibility.ItemOR, "", compatibility.CompatField{}}},
Left: &compatibility.Node{
Exp: &compatibility.CompatField{
Dimensions: []compatibility.CompatDimension{
{Tag: "bar", Values: []compatibility.CompatRange{{0, 0}}}},
},
},
Right: &compatibility.Node{
Exp: &compatibility.CompatField{
Dimensions: []compatibility.CompatDimension{
{Tag: "baz", Values: []compatibility.CompatRange{{0, 0}}}},
},
}},
},
[]compatibility.CompatField{
{Dimensions: []compatibility.CompatDimension{
{Tag: "foo", Values: []compatibility.CompatRange{{Min: 0, Max: 0}}},
{Tag: "blah", Values: []compatibility.CompatRange{{Min: 5, Max: 5}}},
}},
{Dimensions: []compatibility.CompatDimension{
{Tag: "bar", Values: []compatibility.CompatRange{{Min: 0, Max: 0}}},
}},
{Dimensions: []compatibility.CompatDimension{
{Tag: "baz", Values: []compatibility.CompatRange{{Min: 0, Max: 0}}},
}},
},
},
{"foo OR bar OR baz",
&compatibility.Node{
Exp: &compatibility.Operator{compatibility.Item{compatibility.ItemOR, "", compatibility.CompatField{}}},
Left: &compatibility.Node{
Exp: &compatibility.Operator{compatibility.Item{compatibility.ItemOR, "", compatibility.CompatField{}}},
Left: &compatibility.Node{
Exp: &compatibility.CompatField{
Dimensions: []compatibility.CompatDimension{
{Tag: "foo", Values: []compatibility.CompatRange{{0, 0}}}},
},
},
Right: &compatibility.Node{
Exp: &compatibility.CompatField{
Dimensions: []compatibility.CompatDimension{
{Tag: "bar", Values: []compatibility.CompatRange{{0, 0}}}},
},
}},
Right: &compatibility.Node{
Exp: &compatibility.CompatField{
Dimensions: []compatibility.CompatDimension{
{Tag: "baz", Values: []compatibility.CompatRange{{0, 0}}}},
},
},
},
[]compatibility.CompatField{
{Dimensions: []compatibility.CompatDimension{
{Tag: "foo", Values: []compatibility.CompatRange{{Min: 0, Max: 0}}},
}},
{Dimensions: []compatibility.CompatDimension{
{Tag: "bar", Values: []compatibility.CompatRange{{Min: 0, Max: 0}}},
}},
{Dimensions: []compatibility.CompatDimension{
{Tag: "baz", Values: []compatibility.CompatRange{{Min: 0, Max: 0}}},
}},
},
},
} {
c.Logf("tc %d: %+v", i, tc)
node, labels, err := compatibility.Parse(tc.expression)
c.Check(err, IsNil)
c.Check(node, DeepEquals, tc.tree)
c.Check(labels, DeepEquals, tc.labels)
}
}
func (s *CompatSuite) TestParserInvalidExpressions(c *C) {
for i, tc := range []struct {
expression string
errMsg string
}{
{"", "empty compatibility string"},
{"()", `unexpected token "\)"`},
{"(foo", `expected right parenthesis, found "EOF"`},
{"foo)", `unexpected string at the end: "\)"`},
{"foo(", `unexpected token "\("`},
{"foo (", `unexpected token "\("`},
{"foo bar", `unexpected token "label: bar-0"`},
{"foo OR OR bar", `unexpected token "OR"`},
{"AND", `unexpected token "AND"`},
{"OR", `unexpected token "OR"`},
{"foo OR", `unexpected token "EOF"`},
{"OR foo", `unexpected token "OR"`},
{"(OR foo)", `unexpected token "OR"`},
{"foo-", "while parsing: unexpected character after hyphen: EOF"},
{"foo-1-foo-2", "while parsing: repeated string in label: foo"},
{"a12345678901234567890123456789012", "while parsing: string is longer than 32 characters: a12345678901234567890123456789012"},
{"foo-(1..)", `while parsing: not an integer: \)`},
{"foo-(55..1)", `while parsing: negative range specified: \(55\.\.1\)`},
{"foo OR bar AND baz", `unexpected item after OR expression: "AND"`},
{"blah AND (foo OR bar AND baz)", `unexpected item after OR expression: "AND"`},
{"(blah AND foo OR bar) AND baz", `unexpected item after AND expression: "OR"`},
{"foo OR xx (", `unexpected item after OR expression: "\("`},
{"AND)", `unexpected token "AND"`},
{"OR)", `unexpected token "OR"`},
{"foo(bar)", `unexpected token "\("`},
{"foo-1(bar)", `unexpected token "\("`},
{"foo-(1..2)(", `unexpected token "\("`},
} {
c.Logf("tc %d: %+v", i, tc)
node, labels, err := compatibility.Parse(tc.expression)
c.Check(err, ErrorMatches, tc.errMsg)
c.Check(node, IsNil)
c.Check(len(labels), Equals, 0)
}
}
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