Move some et tests around and delete unused files.

tools/engine_tool/BUILD.gn

@@ -37,27 +37,27 @@ dart_test("gn_test") {
 }
 
 dart_test("build_command_test") {
-  main_dart = "test/build_command_test.dart"
+  main_dart = "test/commands/build_command_test.dart"
 }
 
 dart_test("entry_point_test") {
   main_dart = "test/entry_point_test.dart"
 }
 
 dart_test("fetch_command_test") {
-  main_dart = "test/fetch_command_test.dart"
+  main_dart = "test/commands/fetch_command_test.dart"
 }
 
 dart_test("format_command_test") {
-  main_dart = "test/format_command_test.dart"
+  main_dart = "test/commands/format_command_test.dart"
 }
 
 dart_test("label_test") {
   main_dart = "test/label_test.dart"
 }
 
 dart_test("lint_command_test") {
-  main_dart = "test/lint_command_test.dart"
+  main_dart = "test/commands/lint_command_test.dart"
 }
 
 dart_test("logger_test") {
@@ -73,19 +73,19 @@ dart_test("proc_utils_test") {
 }
 
 dart_test("query_command_test") {
-  main_dart = "test/query_command_test.dart"
+  main_dart = "test/commands/query_command_test.dart"
 }
 
 dart_test("run_command_test") {
-  main_dart = "test/run_command_test.dart"
+  main_dart = "test/commands/run_command_test.dart"
 }
 
 dart_test("run_target_test") {
   main_dart = "test/run_target_test.dart"
 }
 
 dart_test("test_command_test") {
-  main_dart = "test/test_command_test.dart"
+  main_dart = "test/commands/test_command_test.dart"
 }
 
 dart_test("typed_json_test") {

tools/engine_tool/test/build_plan_test.dart

@@ -9,7 +9,7 @@ import 'package:engine_tool/src/logger.dart';
 import 'package:test/test.dart';
 
 import 'src/test_build_configs.dart';
-import 'utils.dart';
+import 'src/utils.dart';
 
 void main() {
   test('rbe defaults to true if detected', () {

tools/engine_tool/test/build_command_test.dart → tools/engine_tool/test/commands/build_command_test.dart

@@ -12,9 +12,9 @@ import 'package:engine_tool/src/logger.dart';
 import 'package:path/path.dart' as path;
 import 'package:test/test.dart';
 
-import 'fixtures.dart' as fixtures;
-import 'src/test_build_configs.dart';
-import 'utils.dart';
+import '../fixtures.dart' as fixtures;
+import '../src/test_build_configs.dart';
+import '../src/utils.dart';
 
 void main() {
   test('can find host runnable build', () async {

tools/engine_tool/test/query_command_test.dart → tools/engine_tool/test/commands/query_command_test.dart

@@ -9,8 +9,8 @@ import 'package:engine_tool/src/commands/command_runner.dart';
 import 'package:logging/logging.dart' as log;
 import 'package:test/test.dart';
 
-import 'src/test_build_configs.dart';
-import 'utils.dart';
+import '../src/test_build_configs.dart';
+import '../src/utils.dart';
 
 void main() {
   List<String> stringsFromLogs(List<log.LogRecord> logs) {

tools/engine_tool/test/test_command_test.dart → tools/engine_tool/test/commands/test_command_test.dart

@@ -5,8 +5,8 @@
 import 'package:engine_tool/src/commands/command_runner.dart';
 import 'package:test/test.dart';
 
-import 'src/test_build_configs.dart';
-import 'utils.dart';
+import '../src/test_build_configs.dart';
+import '../src/utils.dart';
 
 void main() {
   test('test implicitly picks a configuration and executes tests', () async {

tools/engine_tool/test/external_tools/flutter_tools_test.dart

@@ -11,7 +11,7 @@ import 'package:engine_tool/src/logger.dart';
 import 'package:test/test.dart';
 
 import '../src/matchers.dart';
-import '../utils.dart';
+import '../src/utils.dart';
 
 void main() {
   test('devices handles a non-zero exit code', () async {

tools/engine_tool/test/external_tools/gn_test.dart

@@ -7,7 +7,7 @@ import 'package:engine_tool/src/label.dart';
 import 'package:engine_tool/src/logger.dart';
 import 'package:test/test.dart';
 
-import '../utils.dart';
+import '../src/utils.dart';
 
 void main() {
   test('gn.desc handles a non-zero exit code', () async {

tools/engine_tool/test/utils_test.dart

@@ -4,7 +4,7 @@
 
 import 'package:test/test.dart';
 
-import 'utils.dart';
+import 'src/utils.dart';
 
 void main() async {
   final cannedProcesses = <CannedProcess>[