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// Copyright 2024 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package predicate_test
import (
"testing"
qt "github.com/frankban/quicktest"
"github.com/gobwas/glob"
"github.com/gohugoio/hugo/common/predicate"
)
func TestPredicate(t *testing.T) {
c := qt.New(t)
n := func() predicate.PR[int] {
var pr predicate.PR[int]
return pr
}
var pr predicate.PR[int]
p := pr.BoolFunc()
c.Assert(p(1), qt.IsFalse)
pr = n().Or(intP1).Or(intP2)
p = pr.BoolFunc()
c.Assert(p(1), qt.IsTrue) // true || false
c.Assert(p(2), qt.IsTrue) // false || true
c.Assert(p(3), qt.IsFalse) // false || false
pr = pr.And(intP3)
p = pr.BoolFunc()
c.Assert(p(2), qt.IsFalse) // true || true && false
c.Assert(pr(10), qt.IsTrue) // true || true && true
pr = pr.And(intP4)
p = pr.BoolFunc()
c.Assert(p(10), qt.IsTrue) // true || true && true && true
c.Assert(p(2), qt.IsFalse) // true || true && false && false
c.Assert(p(1), qt.IsFalse) // true || false && false && false
c.Assert(p(3), qt.IsFalse) // false || false && false && false
c.Assert(p(4), qt.IsFalse) // false || false && false && false
c.Assert(p(42), qt.IsFalse) // false || false && false && false
pr = n().And(intP1).And(intP2).And(intP3).And(intP4)
p = pr.BoolFunc()
c.Assert(p(1), qt.IsFalse)
c.Assert(p(2), qt.IsFalse)
c.Assert(p(10), qt.IsTrue)
pr = n().And(intP1).And(intP2).And(intP3).And(intP4)
p = pr.BoolFunc()
c.Assert(p(1), qt.IsFalse)
c.Assert(p(2), qt.IsFalse)
c.Assert(p(10), qt.IsTrue)
pr = n().Or(intP1).Or(intP2).Or(intP3)
p = pr.BoolFunc()
c.Assert(p(1), qt.IsTrue)
c.Assert(p(10), qt.IsTrue)
c.Assert(p(4), qt.IsFalse)
}
func TestFilter(t *testing.T) {
c := qt.New(t)
var p predicate.PR[int]
p = p.Or(intP1).Or(intP2)
ints := []int{1, 2, 3, 4, 1, 6, 7, 8, 2}
c.Assert(p.Filter(ints), qt.DeepEquals, []int{1, 2, 1, 2})
c.Assert(ints, qt.DeepEquals, []int{1, 2, 1, 2, 1, 6, 7, 8, 2})
}
func TestFilterCopy(t *testing.T) {
c := qt.New(t)
var p predicate.PR[int]
p = p.Or(intP1).Or(intP2)
ints := []int{1, 2, 3, 4, 1, 6, 7, 8, 2}
c.Assert(p.FilterCopy(ints), qt.DeepEquals, []int{1, 2, 1, 2})
c.Assert(ints, qt.DeepEquals, []int{1, 2, 3, 4, 1, 6, 7, 8, 2})
}
var intP1 = func(i int) predicate.Match {
if i == 10 {
return predicate.True
}
return predicate.BoolMatch(i == 1)
}
var intP2 = func(i int) predicate.Match {
if i == 10 {
return predicate.True
}
return predicate.BoolMatch(i == 2)
}
var intP3 = func(i int) predicate.Match {
if i == 10 {
return predicate.True
}
return predicate.BoolMatch(i == 3)
}
var intP4 = func(i int) predicate.Match {
if i == 10 {
return predicate.True
}
return predicate.BoolMatch(i == 4)
}
func TestNewStringPredicateFromGlobs(t *testing.T) {
c := qt.New(t)
getGlob := func(pattern string) (glob.Glob, error) {
return glob.Compile(pattern)
}
n := func(patterns ...string) predicate.P[string] {
p, err := predicate.NewStringPredicateFromGlobs(patterns, getGlob)
c.Assert(err, qt.IsNil)
return p
}
m := n("a", "! ab*", "abc")
c.Assert(m("a"), qt.IsTrue)
c.Assert(m("ab"), qt.IsFalse)
c.Assert(m("abc"), qt.IsFalse)
m = n()
c.Assert(m("anything"), qt.IsFalse)
}
func TestNewIndexStringPredicateFromGlobsAndRanges(t *testing.T) {
c := qt.New(t)
// Simulate versions: v4.0.0=0, v3.0.0=1, v2.0.0=2, v1.0.0=3
// Lower index = greater value.
versions := []string{"v4.0.0", "v3.0.0", "v2.0.0", "v1.0.0"}
getIndex := func(s string) int {
for i, v := range versions {
if v == s {
return i
}
}
return -1
}
getGlob := func(pattern string) (glob.Glob, error) {
return glob.Compile(pattern)
}
n := func(patterns ...string) predicate.P[predicate.IndexString] {
p, err := predicate.NewIndexStringPredicateFromGlobsAndRanges(patterns, getIndex, getGlob)
c.Assert(err, qt.IsNil)
return p
}
is := func(i int) predicate.IndexString {
return predicate.IndexString{Index: i, String: versions[i]}
}
// Test >= v2.0.0 (index 2): should match indices <= 2
m := n(">= v2.0.0")
c.Assert(m(is(0)), qt.IsTrue) // v4.0.0
c.Assert(m(is(1)), qt.IsTrue) // v3.0.0
c.Assert(m(is(2)), qt.IsTrue) // v2.0.0
c.Assert(m(is(3)), qt.IsFalse) // v1.0.0
// Test > v2.0.0 (index 2): should match indices < 2
m = n("> v2.0.0")
c.Assert(m(is(0)), qt.IsTrue) // v4.0.0
c.Assert(m(is(1)), qt.IsTrue) // v3.0.0
c.Assert(m(is(2)), qt.IsFalse) // v2.0.0
c.Assert(m(is(3)), qt.IsFalse) // v1.0.0
// Test < v3.0.0 (index 1): should match indices > 1
m = n("< v3.0.0")
c.Assert(m(is(0)), qt.IsFalse) // v4.0.0
c.Assert(m(is(1)), qt.IsFalse) // v3.0.0
c.Assert(m(is(2)), qt.IsTrue) // v2.0.0
c.Assert(m(is(3)), qt.IsTrue) // v1.0.0
// Test range: >= v2.0.0 AND <= v3.0.0
m = n(">= v2.0.0", "<= v3.0.0")
c.Assert(m(is(0)), qt.IsFalse) // v4.0.0 - too high
c.Assert(m(is(1)), qt.IsTrue) // v3.0.0
c.Assert(m(is(2)), qt.IsTrue) // v2.0.0
c.Assert(m(is(3)), qt.IsFalse) // v1.0.0 - too low
// Test glob pattern
m = n("v2.*.*")
c.Assert(m(is(0)), qt.IsFalse) // v4.0.0
c.Assert(m(is(2)), qt.IsTrue) // v2.0.0
// Test glob with negation
m = n("v*.*.*", "! v3.*.*")
c.Assert(m(is(0)), qt.IsTrue) // v4.0.0
c.Assert(m(is(1)), qt.IsFalse) // v3.0.0 - negated
c.Assert(m(is(2)), qt.IsTrue) // v2.0.0
// Test range with negation: >= v2.0.0 but not v3.0.0
m = n(">= v2.0.0", "! v3.0.0")
c.Assert(m(is(0)), qt.IsTrue) // v4.0.0
c.Assert(m(is(1)), qt.IsFalse) // v3.0.0 - negated
c.Assert(m(is(2)), qt.IsTrue) // v2.0.0
c.Assert(m(is(3)), qt.IsFalse) // v1.0.0 - out of range
// Test unknown value in range returns no match
m = n(">= v99.0.0")
c.Assert(m(is(0)), qt.IsFalse)
c.Assert(m(is(3)), qt.IsFalse)
// Test == v2.0.0: should only match v2.0.0
m = n("== v2.0.0")
c.Assert(m(is(0)), qt.IsFalse) // v4.0.0
c.Assert(m(is(1)), qt.IsFalse) // v3.0.0
c.Assert(m(is(2)), qt.IsTrue) // v2.0.0
c.Assert(m(is(3)), qt.IsFalse) // v1.0.0
// Test != v2.0.0: should match everything except v2.0.0
m = n("!= v2.0.0")
c.Assert(m(is(0)), qt.IsTrue) // v4.0.0
c.Assert(m(is(1)), qt.IsTrue) // v3.0.0
c.Assert(m(is(2)), qt.IsFalse) // v2.0.0
c.Assert(m(is(3)), qt.IsTrue) // v1.0.0
// Test != with range: >= v2.0.0 AND != v3.0.0
m = n(">= v2.0.0", "!= v3.0.0")
c.Assert(m(is(0)), qt.IsTrue) // v4.0.0
c.Assert(m(is(1)), qt.IsFalse) // v3.0.0 - excluded by !=
c.Assert(m(is(2)), qt.IsTrue) // v2.0.0
c.Assert(m(is(3)), qt.IsFalse) // v1.0.0 - out of range
}
func BenchmarkPredicate(b *testing.B) {
b.Run("and or no match", func(b *testing.B) {
var p predicate.PR[int] = intP1
p = p.And(intP2).Or(intP3)
for b.Loop() {
_ = p(3).OK()
}
})
b.Run("and and no match", func(b *testing.B) {
var p predicate.PR[int] = intP1
p = p.And(intP2)
for b.Loop() {
_ = p(3).OK()
}
})
b.Run("and and match", func(b *testing.B) {
var p predicate.PR[int] = intP1
p = p.And(intP2)
for b.Loop() {
_ = p(10).OK()
}
})
b.Run("or or match", func(b *testing.B) {
var p predicate.PR[int] = intP1
p = p.Or(intP2).Or(intP3)
for b.Loop() {
_ = p(2).OK()
}
})
}
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