Add ChromeWebClientTest where SSLInfo is passed to PrepareErrorPage

Follow-up to crrev.com/c/1793260. Adds a test for SSL committed
interstitials.

Bug: 1017406
Change-Id: I47741700c5233ef6f238b3e2b61692d5a4b10cfc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1900405
Commit-Queue: Livvie Lin <livvielin@chromium.org>
Reviewed-by: Eugene But <eugenebut@chromium.org>
Cr-Commit-Position: refs/heads/master@{#713199}

ios/chrome/browser/web/BUILD.gn

@@ -304,6 +304,7 @@ source_set("unit_tests_internal") {
     "//ios/web/public/test",
     "//ios/web/public/test/fakes",
     "//net",
+    "//net:test_support",
     "//testing/gtest",
     "//third_party/ocmock",
     "//url",

ios/chrome/browser/web/chrome_web_client_unittest.mm

@@ -24,6 +24,9 @@
 #import "ios/web/public/test/fakes/test_web_state.h"
 #import "ios/web/public/test/js_test_util.h"
 #include "ios/web/public/test/scoped_testing_web_client.h"
+#include "net/ssl/ssl_info.h"
+#include "net/test/cert_test_util.h"
+#include "net/test/test_data_directory.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/gtest_mac.h"
 #include "testing/platform_test.h"
@@ -292,5 +295,40 @@ TEST_F(ChromeWebClientTest, PrepareErrorPagePostOtr) {
               page);
 }
 
-// TODO(crbug.com/1017406): Add tests for SSL committed interstitials, where
-// an SSLInfo value is passed into PrepareErrorPage.
+// Tests PrepareErrorPage with SSLInfo, which results in an SSL committed
+// interstitial.
+TEST_F(ChromeWebClientTest, PrepareErrorPageWithSSLInfo) {
+  net::SSLInfo info;
+  info.cert =
+      net::ImportCertFromFile(net::GetTestCertsDirectory(), "ok_cert.pem");
+  info.is_fatal_cert_error = false;
+  info.cert_status = net::CERT_STATUS_COMMON_NAME_INVALID;
+  base::Optional<net::SSLInfo> ssl_info =
+      base::make_optional<net::SSLInfo>(info);
+  ChromeWebClient web_client;
+  NSError* error =
+      [NSError errorWithDomain:NSURLErrorDomain
+                          code:NSURLErrorServerCertificateHasUnknownRoot
+                      userInfo:nil];
+  __block bool callback_called = false;
+  __block NSString* page = nil;
+  base::OnceCallback<void(NSString*)> callback =
+      base::BindOnce(^(NSString* error_html) {
+        callback_called = true;
+        page = error_html;
+      });
+  web::TestWebState test_web_state;
+  test_web_state.SetBrowserState(browser_state());
+  web_client.PrepareErrorPage(&test_web_state, GURL(kTestUrl), error,
+                              /*is_post=*/false,
+                              /*is_off_the_record=*/false,
+                              /*info=*/ssl_info,
+                              /*navigation_id=*/0, std::move(callback));
+  EXPECT_TRUE(WaitUntilConditionOrTimeout(kWaitForActionTimeout, ^bool {
+    base::RunLoop().RunUntilIdle();
+    return callback_called;
+  }));
+  NSString* error_string = base::SysUTF8ToNSString(
+      net::ErrorToShortString(net::ERR_CERT_COMMON_NAME_INVALID));
+  EXPECT_TRUE([page containsString:error_string]);
+}