Reland "[Autofill Assistant] Added missing unit tests for new service deps."

This is a reland of c66038fc

Original change's description:
> [Autofill Assistant] Added missing unit tests for new service deps.
>
> Bug: b/158998456
> Change-Id: Ib580385e201a1b68967dcace71af8cd8f2ed58e2
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2450309
> Commit-Queue: Clemens Arbesser <arbesser@google.com>
> Reviewed-by: Sandro Maggi <sandromaggi@google.com>
> Cr-Commit-Position: refs/heads/master@{#814184}

Bug: b/158998456
Change-Id: Ie318ecb1aba3af9f8ee64d9e727460889b8734c0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2452629
Commit-Queue: Clemens Arbesser <arbesser@google.com>
Commit-Queue: Sandro Maggi <sandromaggi@google.com>
Auto-Submit: Clemens Arbesser <arbesser@google.com>
Reviewed-by: Sandro Maggi <sandromaggi@google.com>
Cr-Commit-Position: refs/heads/master@{#814211}

components/autofill_assistant/browser/BUILD.gn

@@ -302,8 +302,10 @@ source_set("unit_tests") {
     "script_precondition_unittest.cc",
     "script_tracker_unittest.cc",
     "selector_unittest.cc",
+    "service/api_key_fetcher_unittest.cc",
     "service/lite_service_unittest.cc",
     "service/lite_service_util_unittest.cc",
+    "service/server_url_fetcher_unittest.cc",
     "string_conversions_util_unittest.cc",
     "test_util.cc",
     "test_util.h",

components/autofill_assistant/browser/service/api_key_fetcher_unittest.cc

+// Copyright 2020 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "components/autofill_assistant/browser/service/api_key_fetcher.h"
+
+#include "base/command_line.h"
+#include "components/autofill_assistant/browser/switches.h"
+#include "components/version_info/version_info.h"
+#include "google_apis/google_api_keys.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace autofill_assistant {
+namespace {
+
+using ::testing::Eq;
+
+TEST(ApiKeyFetcherTest, GetAPIKeyCommandLineOverride) {
+  base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
+      switches::kAutofillAssistantServerKey, "fake_key");
+
+  EXPECT_THAT(ApiKeyFetcher().GetAPIKey(version_info::Channel::STABLE),
+              Eq("fake_key"));
+  EXPECT_THAT(ApiKeyFetcher().GetAPIKey(version_info::Channel::UNKNOWN),
+              Eq("fake_key"));
+  EXPECT_THAT(ApiKeyFetcher().GetAPIKey(version_info::Channel::CANARY),
+              Eq("fake_key"));
+  EXPECT_THAT(ApiKeyFetcher().GetAPIKey(version_info::Channel::DEV),
+              Eq("fake_key"));
+  EXPECT_THAT(ApiKeyFetcher().GetAPIKey(version_info::Channel::BETA),
+              Eq("fake_key"));
+}
+
+TEST(ApiKeyFetcherTest, GetAPIKeyReturnsStableAndNonstableKeys) {
+  base::CommandLine::ForCurrentProcess()->RemoveSwitch(
+      switches::kAutofillAssistantServerKey);
+  // Only run tests on Google Chrome builds. This intentionally does not gate
+  // the test with a precompiler definition, because a change to
+  // |IsGoogleChromeAPIKeyUsed| would go unnoticed by us.
+  if (!google_apis::IsGoogleChromeAPIKeyUsed()) {
+    return;
+  }
+
+  std::string api_key_stable = google_apis::GetAPIKey();
+  std::string api_key_nonstable = google_apis::GetNonStableAPIKey();
+
+  EXPECT_THAT(ApiKeyFetcher().GetAPIKey(version_info::Channel::STABLE),
+              Eq(api_key_stable));
+  EXPECT_THAT(ApiKeyFetcher().GetAPIKey(version_info::Channel::UNKNOWN),
+              Eq(api_key_nonstable));
+  EXPECT_THAT(ApiKeyFetcher().GetAPIKey(version_info::Channel::CANARY),
+              Eq(api_key_nonstable));
+  EXPECT_THAT(ApiKeyFetcher().GetAPIKey(version_info::Channel::DEV),
+              Eq(api_key_nonstable));
+  EXPECT_THAT(ApiKeyFetcher().GetAPIKey(version_info::Channel::BETA),
+              Eq(api_key_nonstable));
+}
+
+}  // namespace
+}  // namespace autofill_assistant

components/autofill_assistant/browser/service/server_url_fetcher_unittest.cc

+// Copyright 2020 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "components/autofill_assistant/browser/service/server_url_fetcher.h"
+
+#include "base/command_line.h"
+#include "components/autofill_assistant/browser/switches.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace autofill_assistant {
+namespace {
+
+using ::testing::Eq;
+
+TEST(ServerUrlFetcherTest, GetDefaultServerUrl) {
+  base::CommandLine::ForCurrentProcess()->RemoveSwitch(
+      switches::kAutofillAssistantUrl);
+  EXPECT_THAT(ServerUrlFetcher::GetDefaultServerUrl(),
+              Eq(GURL("https://automate-pa.googleapis.com")));
+}
+
+TEST(ServerUrlFetcherTest, GetDefaultServerUrlCommandLineOverride) {
+  base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
+      switches::kAutofillAssistantUrl, "https://www.example.com");
+  EXPECT_THAT(ServerUrlFetcher::GetDefaultServerUrl(),
+              Eq(GURL("https://www.example.com")));
+}
+
+TEST(ServerUrlFetcherTest, GetScriptsEndpoint) {
+  EXPECT_THAT(ServerUrlFetcher(GURL("https://www.example.com"))
+                  .GetSupportsScriptEndpoint(),
+              Eq(GURL("https://www.example.com/v1/supportsSite2")));
+}
+
+TEST(ServerUrlFetcherTest, GetActionsEndpoint) {
+  EXPECT_THAT(ServerUrlFetcher(GURL("https://www.example.com"))
+                  .GetNextActionsEndpoint(),
+              Eq(GURL("https://www.example.com/v1/actions2")));
+}
+
+}  // namespace
+}  // namespace autofill_assistant