asteris-llc/converge

// Copyright © 2016 Asteris, LLC
//
// 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 plan_test

import (
    "testing"

    "github.com/asteris-llc/converge/graph"
    "github.com/asteris-llc/converge/graph/node"
    "github.com/asteris-llc/converge/graph/node/conditional"
    "github.com/asteris-llc/converge/helpers/faketask"
    "github.com/asteris-llc/converge/helpers/testing/graphutils"
    "github.com/asteris-llc/converge/parse/preprocessor/switch"
    "github.com/asteris-llc/converge/plan"
    "github.com/asteris-llc/converge/render"
    "github.com/asteris-llc/converge/resource"
    "github.com/stretchr/testify/assert"
    "github.com/stretchr/testify/require"

    "golang.org/x/net/context"
)

// TestResolveConditional tests for handling conditional nodes during planning
func TestResolveConditional(t *testing.T) {
    t.Run("when-non-conditional-node", func(t *testing.T) {
        g := sampleGraph()
        factory, _ := render.NewFactory(context.Background(), g)
        p := plan.Pipeline(context.Background(), g, "root/a", factory)
        meta, _ := g.Get("root/a")
        result, err := p.Exec(context.Background(), meta.Value())
        require.NoError(t, err)
        asPlanResult, ok := result.(*plan.Result)
        require.True(t, ok)
        _, ok = asPlanResult.Task.(*faketask.FakeTask)
        assert.True(t, ok)
    })

    t.Run("when-should-evaluate", func(t *testing.T) {
        g := sampleGraph()
        factory, _ := render.NewFactory(context.Background(), g)
        p := plan.Pipeline(context.Background(), g, "root/a", factory)
        meta, _ := g.Get("root/a")
        graphutils.AddMetadata(g, "root/a", conditional.MetaPredicate, true)
        result, err := p.Exec(context.Background(), meta.Value())
        require.NoError(t, err)
        asPlanResult, ok := result.(*plan.Result)
        require.True(t, ok)
        _, ok = asPlanResult.Task.(*faketask.FakeTask)
        assert.True(t, ok)
    })

    t.Run("when-should-not-evaluate", func(t *testing.T) {
        g := sampleGraph()
        factory, _ := render.NewFactory(context.Background(), g)
        p := plan.Pipeline(context.Background(), g, "root/a", factory)
        meta, _ := g.Get("root/a")
        graphutils.AddMetadata(g, "root/a", conditional.MetaBranchName, "branch1")
        graphutils.AddMetadata(g, "root/a", conditional.MetaPredicate, false)
        result, err := p.Exec(context.Background(), meta.Value())
        require.NoError(t, err)
        asPlanResult, ok := result.(*plan.Result)
        require.True(t, ok)
        _, ok = asPlanResult.Task.(*control.NopTask)
        assert.True(t, ok)
    })
}

// TestExportedFields tests that we put exported fields in the struct
func TestExportedFields(t *testing.T) {
    g := sampleGraph()
    factory, _ := render.NewFactory(context.Background(), g)
    p := plan.Pipeline(context.Background(), g, "root/a", factory)
    meta, _ := g.Get("root/a")
    result, err := p.Exec(context.Background(), meta.Value())
    require.NoError(t, err)
    asPlanResult, ok := result.(*plan.Result)
    require.True(t, ok)
    _, ok = asPlanResult.Task.(*faketask.FakeTask)
    assert.True(t, ok)
    planStatus, ok := asPlanResult.Status.(*resource.Status)
    require.True(t, ok)
    statusMap := planStatus.ExportedFields()
    assert.Equal(t, "status1", statusMap["status"])
}

func sampleGraph() *graph.Graph {
    g := graph.New()
    g.Add(node.New(graph.ID("root"), nil))
    g.Add(node.New(graph.ID("root", "a"), &faketask.FakeTask{Status: "status1"}))
    return g
}