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// Copyright 2019 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 trim
import (
"testing"
"cuelang.org/go/cue/build"
"cuelang.org/go/cue/errors"
"cuelang.org/go/internal/cuetdtest"
"cuelang.org/go/internal/cuetxtar"
"github.com/go-quicktest/qt"
)
var (
// TODO(evalv3): many broken tests in new evaluator, use FullMatrix to
// expose. This is probably due to the changed underlying representation.
// matrix = cuetdtest.FullMatrix
matrix = cuetdtest.DefaultOnlyMatrix
)
const trace = false
func TestTrimFiles(t *testing.T) {
test := cuetxtar.TxTarTest{
Root: "./testdata",
Name: "trim",
Matrix: matrix,
}
test.Run(t, func(t *cuetxtar.Test) {
a := t.Instance()
ctx := t.CueContext()
val := ctx.BuildInstance(a)
// Note: don't require val.Err to be nil because there are deliberate
// errors in some tests, to ensure trim still works even with some errors.
hadError := val.Err() != nil
files := a.Files
err := Files(files, val, &Config{Trace: trace})
if err != nil {
t.WriteErrors(errors.Promote(err, ""))
}
// If the files could be built without an error before,
// they should still build without an error after trimming.
// This might not be true if, for example, unused imports are not removed.
// Note that we need a new build.Instance to build the ast.Files from scratch again.
if !hadError {
a := build.NewContext().NewInstance("", nil)
for _, file := range files {
a.AddSyntax(file)
}
val := ctx.BuildInstance(a)
qt.Assert(t, qt.IsNil(val.Err()))
}
for _, f := range files {
t.WriteFile(f)
}
})
}
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