mirror of https://github.com/pulumi/pulumi.git
49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
// Copyright 2016-2023, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package channel
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import (
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"context"
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"testing"
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"github.com/pulumi/pulumi/sdk/v3/go/common/promise"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestFilterRead(t *testing.T) {
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t.Parallel()
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ch := make(chan int)
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filter := func(i int) bool { return i < 10 }
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filtered := FilterRead(ch, filter)
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seenP := promise.Run(func() ([]int, error) {
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var out []int
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for i := range filtered {
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out = append(out, i)
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}
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return out, nil
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})
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for i := 0; i < 20; i++ {
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ch <- i
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}
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close(ch)
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seen, err := seenP.Result(context.Background())
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require.NoError(t, err)
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assert.Equal(t, []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, seen)
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}
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