terraform/command/graph_test.go

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package command
import (
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"os"
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"strings"
"testing"
"github.com/mitchellh/cli"
"github.com/zclconf/go-cty/cty"
"github.com/hashicorp/terraform/addrs"
"github.com/hashicorp/terraform/plans"
"github.com/hashicorp/terraform/states"
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)
func TestGraph(t *testing.T) {
tmp, cwd := testCwd(t)
defer testFixCwd(t, tmp, cwd)
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ui := new(cli.MockUi)
c := &GraphCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(testProvider()),
Ui: ui,
},
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}
args := []string{
testFixturePath("graph"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: \n%s", ui.ErrorWriter.String())
}
output := ui.OutputWriter.String()
if !strings.Contains(output, `provider["registry.terraform.io/-/test"]`) {
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t.Fatalf("doesn't look like digraph: %s", output)
}
}
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func TestGraph_multipleArgs(t *testing.T) {
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ui := new(cli.MockUi)
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c := &GraphCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(testProvider()),
Ui: ui,
},
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}
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args := []string{
"bad",
"bad",
}
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if code := c.Run(args); code != 1 {
t.Fatalf("bad: \n%s", ui.OutputWriter.String())
}
}
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func TestGraph_noArgs(t *testing.T) {
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(testFixturePath("graph")); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
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ui := new(cli.MockUi)
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c := &GraphCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(testProvider()),
Ui: ui,
},
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}
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args := []string{}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: \n%s", ui.ErrorWriter.String())
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}
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output := ui.OutputWriter.String()
if !strings.Contains(output, `provider["registry.terraform.io/-/test"]`) {
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t.Fatalf("doesn't look like digraph: %s", output)
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}
}
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func TestGraph_noConfig(t *testing.T) {
td := tempDir(t)
os.MkdirAll(td, 0755)
defer os.RemoveAll(td)
defer testChdir(t, td)()
ui := new(cli.MockUi)
c := &GraphCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(testProvider()),
Ui: ui,
},
}
// Running the graph command without a config should not panic,
// but this may be an error at some point in the future.
args := []string{"-type", "apply"}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: \n%s", ui.ErrorWriter.String())
}
}
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func TestGraph_plan(t *testing.T) {
tmp, cwd := testCwd(t)
defer testFixCwd(t, tmp, cwd)
plan := &plans.Plan{
Changes: plans.NewChanges(),
}
plan.Changes.Resources = append(plan.Changes.Resources, &plans.ResourceInstanceChangeSrc{
Addr: addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_instance",
Name: "bar",
}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
ChangeSrc: plans.ChangeSrc{
Action: plans.Delete,
Before: plans.DynamicValue(`{}`),
After: plans.DynamicValue(`null`),
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},
ProviderAddr: addrs.AbsProviderConfig{
Provider: addrs.NewLegacyProvider("test"),
Module: addrs.RootModule,
},
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})
emptyConfig, err := plans.NewDynamicValue(cty.EmptyObjectVal, cty.EmptyObject)
if err != nil {
t.Fatal(err)
}
plan.Backend = plans.Backend{
// Doesn't actually matter since we aren't going to activate the backend
// for this command anyway, but we need something here for the plan
// file writer to succeed.
Type: "placeholder",
Config: emptyConfig,
}
_, configSnap := testModuleWithSnapshot(t, "graph")
planPath := testPlanFile(t, configSnap, states.NewState(), plan)
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ui := new(cli.MockUi)
c := &GraphCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(testProvider()),
Ui: ui,
},
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}
args := []string{
planPath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: \n%s", ui.ErrorWriter.String())
}
output := ui.OutputWriter.String()
if !strings.Contains(output, `provider["registry.terraform.io/-/test"]`) {
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t.Fatalf("doesn't look like digraph: %s", output)
}
}