[resultstore] Delete example

We're about to integrate resultstore into the new testrunner.  That code will
serve as the canonical example of using this code in production.

Change-Id: I4691979be55e4c695d0943c0afc5c64b5eff3936
diff --git a/cmd/resultstore/example/main.go b/cmd/resultstore/example/main.go
deleted file mode 100644
index 2e974fe..0000000
--- a/cmd/resultstore/example/main.go
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright 2019 The Fuchsia Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package main
-
-import (
-	"context"
-	"flag"
-	"fmt"
-	"log"
-	"os"
-
-	"fuchsia.googlesource.com/infra/infra/resultstore"
-	"github.com/google/uuid"
-)
-
-var (
-	// Google Cloud Project ID to associate the invocation with.
-	projectID string
-)
-
-func usage() {
-	fmt.Fprintf(os.Stderr, `
-example [flags]
-
-Creates an example invocation in resultstore.  This is really an integration test for
-//infra/infra/resultstore, which is only meant to be run locally.
-
-Options:
-`)
-
-	flag.PrintDefaults()
-}
-
-func init() {
-	flag.Usage = usage
-	flag.StringVar(&projectID, "project-id", "", "Google Cloud Project ID to associate the invocation with")
-}
-
-func main() {
-	flag.Parse()
-	if flag.NArg() != 0 {
-		flag.Usage()
-		return
-	}
-
-	if projectID == "" {
-		log.Fatal("missing project-id")
-	}
-
-	ctx, err := resultstore.SetAuthToken(context.Background(), uuid.New().String())
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	if err := execute(ctx); err != nil {
-		log.Fatal(err)
-	}
-}
-
-func execute(ctx context.Context) error {
-	client, err := resultstore.Connect(ctx, resultstore.Staging)
-	if err != nil {
-		return err
-	}
-
-	simulator, err := NewSimulator(ctx, client, projectID, "test_configuration_id", 123456789)
-	if err != nil {
-		return err
-	}
-
-	log.Printf("created invocation at: %s", simulator.InvocationURL())
-
-	finalStatus := resultstore.Passed
-	tests := []string{
-		"foo",
-		"bar",
-		"baz",
-		"bang",
-		"fizz",
-		"snap",
-		"crackle",
-		"pop",
-		"wee",
-		"waa",
-		"zimmy",
-		"wam",
-		"wuzzle",
-	}
-	for _, test := range tests {
-		status, err := simulator.Test(ctx, test)
-		if err != nil {
-			return err
-		}
-		if status == resultstore.Failed {
-			finalStatus = resultstore.Failed
-		}
-	}
-
-	if err := simulator.End(ctx, finalStatus); err != nil {
-		return err
-	}
-
-	return nil
-}
diff --git a/cmd/resultstore/example/simulator.go b/cmd/resultstore/example/simulator.go
deleted file mode 100644
index 86613e8..0000000
--- a/cmd/resultstore/example/simulator.go
+++ /dev/null
@@ -1,182 +0,0 @@
-// Copyright 2019 The Fuchsia Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package main
-
-import (
-	"context"
-	"math/rand"
-	"time"
-
-	"fuchsia.googlesource.com/infra/infra/resultstore"
-	"fuchsia.googlesource.com/infra/infra/resultstore/fields"
-	"github.com/google/uuid"
-)
-
-// Dummy test log URLs.
-const (
-	passingTestLogURL = "gs://fuchsia-infra-test/tilo_passed_test.log"
-	failingTestLogURL = "gs://fuchsia-infra-test/tilo_failed_test.log"
-)
-
-// simulator is used to simulate the execution of a collection of tests in ResultStore.
-// The simulator is useful for the duration of a single invocation's lifetime.  It is also
-// assumed that the invocation takes place within a single test configuration.
-type simulator struct {
-	client        resultstore.UploadClient
-	configuration *resultstore.Configuration
-	invocation    *resultstore.Invocation
-	random        *rand.Rand
-}
-
-func NewSimulator(ctx context.Context, client resultstore.UploadClient, projectID, configurationID string, seed int64) (*simulator, error) {
-	// Create the invocation for this Simulation.
-	startTime := time.Now()
-	invocation, err := client.CreateInvocation(ctx, &resultstore.Invocation{
-		ProjectID: projectID,
-		ID:        uuid.New().String(),
-		StartTime: startTime,
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	invocation.StartTime = startTime
-
-	// Create the environment for this Simulation.
-	configuration, err := client.CreateConfiguration(ctx, &resultstore.Configuration{
-		ID:           configurationID,
-		InvocationID: invocation.ID,
-		Properties: map[string]string{
-			"a": "b",
-			"c": "d",
-		},
-	}, invocation.Name)
-	if err != nil {
-		return nil, err
-	}
-
-	return &simulator{
-		client:        client,
-		configuration: configuration,
-		invocation:    invocation,
-		random:        rand.New(rand.NewSource(seed)),
-	}, nil
-}
-
-// Returns the URL to this simulator's Invocation in Result Store.
-func (s *simulator) InvocationURL() string {
-	return resultstore.Staging.InvocationURL(s.invocation.ID)
-}
-
-// End finishes this simulator's invocation.
-func (s *simulator) End(ctx context.Context, status resultstore.Status) error {
-	s.invocation.Status = status
-	s.invocation.Duration = 10 * time.Minute
-	if _, err := s.client.UpdateInvocation(ctx, s.invocation, []string{
-		fields.StatusAttributes,
-		fields.Duration,
-	}); err != nil {
-		return err
-	}
-
-	return s.client.FinishInvocation(ctx, s.invocation.Name)
-}
-
-// Test simulates the execution of a test with the given name.
-func (s *simulator) Test(ctx context.Context, test string) (resultstore.Status, error) {
-	var status resultstore.Status
-
-	// Create a test target for the test.
-	startTime := time.Now()
-	target, err := s.client.CreateTarget(ctx, &resultstore.Target{
-		ID: &resultstore.TargetID{
-			ID:           test,
-			InvocationID: s.invocation.ID,
-		},
-		StartTime: startTime,
-	}, s.invocation.Name)
-	if err != nil {
-		return resultstore.Unknown, err
-	}
-
-	// Create a ConfiguredTarget for the target
-	configuredTarget, err := s.client.CreateConfiguredTarget(ctx, &resultstore.ConfiguredTarget{
-		ID: &resultstore.ConfiguredTargetID{
-			InvocationID: s.invocation.ID,
-			TargetID:     target.ID.ID,
-			ConfigID:     s.configuration.ID,
-		},
-		StartTime: startTime,
-	}, target.Name)
-	if err != nil {
-		return resultstore.Unknown, err
-	}
-
-	// Create a test action the configured target.
-	action, err := s.client.CreateTestAction(ctx, &resultstore.TestAction{
-		ID: &resultstore.TestActionID{
-			ID:           "test",
-			InvocationID: s.invocation.ID,
-			TargetID:     target.ID.ID,
-			ConfigID:     configuredTarget.ID.ConfigID,
-		},
-		StartTime: startTime,
-	}, configuredTarget.Name)
-	if err != nil {
-		return resultstore.Unknown, err
-	}
-
-	// Update that the test has finished
-	const duration = 10 * time.Minute
-	logURL := passingTestLogURL
-	status = resultstore.Passed
-	if s.random.Intn(2) < 1 {
-		status = resultstore.Failed
-		logURL = failingTestLogURL
-	}
-
-	action.StartTime = startTime
-	action.Duration = duration
-	action.TestLogURI = logURL
-	action.Status = status
-	if _, err := s.client.UpdateTestAction(ctx, action, []string{
-		fields.Duration,
-		fields.Files,
-		fields.StatusAttributes,
-	}); err != nil {
-		return resultstore.Unknown, err
-	}
-
-	configuredTarget.StartTime = startTime
-	configuredTarget.Duration = duration
-	configuredTarget.Status = status
-	if _, err := s.client.UpdateConfiguredTarget(ctx, configuredTarget, []string{
-		fields.Duration,
-		fields.StatusAttributes,
-	}); err != nil {
-		return resultstore.Unknown, err
-	}
-
-	target.StartTime = startTime
-	target.Duration = duration
-	target.Status = status
-	target.TestLogURI = logURL
-	if _, err := s.client.UpdateTarget(ctx, target, []string{
-		fields.Duration,
-		fields.Files,
-		fields.StatusAttributes,
-	}); err != nil {
-		return resultstore.Unknown, err
-	}
-
-	if err := s.client.FinishConfiguredTarget(ctx, configuredTarget.Name); err != nil {
-		return resultstore.Unknown, err
-	}
-	if err := s.client.FinishTarget(ctx, target.Name); err != nil {
-		return resultstore.Unknown, err
-	}
-
-	return status, nil
-}