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// Copyright 2023 CUE Authors
//
// 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 adt_test
import (
"testing"
"cuelang.org/go/cue/ast"
"cuelang.org/go/internal/core/adt"
"cuelang.org/go/internal/core/compile"
"cuelang.org/go/internal/core/eval"
"cuelang.org/go/internal/core/runtime"
"cuelang.org/go/internal/cuetest"
)
func TestMatchPatternValue(t *testing.T) {
type testCase struct {
expr string
label string
index int64
value string // overrides value from label
result bool
}
r := runtime.New()
ctx := eval.NewContext(r, nil)
pv := func(t *testing.T, s string) adt.Value {
switch s {
case "_":
return &adt.Top{}
}
cfg := compile.Config{
Imports: func(x *ast.Ident) (pkgPath string) {
return r.BuiltinPackagePath(x.Name)
},
}
v, b := r.Compile(&runtime.Config{Config: cfg}, s)
if b.Err != nil {
t.Fatal(b.Err)
}
v.Finalize(ctx)
ctx.Err() // clear errors
return v.Value()
}
str := func(s string) (adt.Feature, adt.Value) {
f := r.StrLabel(s)
return f, ctx.NewString(s)
}
idx := func(i int64) adt.Feature {
return adt.MakeIntLabel(adt.IntLabel, i)
}
testCases := []testCase{{
expr: "string",
label: "foo",
result: true,
}, {
expr: "_",
label: "foo",
result: true,
}, {
expr: "_|_",
label: "foo",
result: false,
}, {
expr: `<"h"`,
label: "foo",
result: true,
}, {
expr: `"foo"`,
label: "bar",
result: false,
}, {
expr: `"foo"`,
label: "foo",
result: true,
}, {
expr: `<4`,
index: 5,
result: false,
}, {
expr: `>=4`,
index: 5,
result: true,
}, {
expr: `5`,
index: 5,
result: true,
}, {
expr: `5`,
label: "str",
result: false,
}, {
expr: `>1 & <10`,
index: 5,
result: true,
}, {
expr: `>1 & <10`,
index: 10,
result: false,
}, {
expr: `<1 | >10`,
index: 0,
result: true,
}, {
expr: `<1 | >10`,
index: 5,
result: false,
}, {
expr: `strings.HasPrefix("foo")`,
label: "foo",
result: true,
}, {
expr: `strings.HasPrefix("foo")`,
label: "bar",
result: false,
}}
cuetest.Run(t, testCases, func(t *cuetest.T, tc *testCase) {
expr := pv(t.T, tc.expr)
var f adt.Feature
var label adt.Value
if tc.label != "" {
f, label = str(tc.label)
} else {
f = idx(tc.index)
}
if tc.value != "" {
label = pv(t.T, tc.value)
}
t.Equal(adt.MatchPatternValue(ctx, expr, f, label), tc.result)
})
}
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