1 files changed, 66 insertions, 4 deletions

diff --git a/tests/component/sideload_test.cpp b/tests/component/sideload_test.cpp
index 40cfc6975..b7109fcc2 100644
--- a/tests/component/sideload_test.cpp
+++ b/tests/component/sideload_test.cpp
@@ -16,6 +16,12 @@
 
 #include <unistd.h>
 
+#include <string>
+#include <vector>
+
+#include <android-base/file.h>
+#include <android-base/strings.h>
+#include <android-base/test_utils.h>
 #include <gtest/gtest.h>
 
 #include "fuse_sideload.h"
@@ -26,11 +32,67 @@ TEST(SideloadTest, fuse_device) {
 
 TEST(SideloadTest, run_fuse_sideload_wrong_parameters) {
   provider_vtab vtab;
-  vtab.close = [](void*) {};
+  vtab.close = [](void) {};
 
-  ASSERT_EQ(-1, run_fuse_sideload(&vtab, nullptr, 4096, 4095));
-  ASSERT_EQ(-1, run_fuse_sideload(&vtab, nullptr, 4096, (1 << 22) + 1));
+  ASSERT_EQ(-1, run_fuse_sideload(vtab, 4096, 4095));
+  ASSERT_EQ(-1, run_fuse_sideload(vtab, 4096, (1 << 22) + 1));
 
   // Too many blocks.
-  ASSERT_EQ(-1, run_fuse_sideload(&vtab, nullptr, ((1 << 18) + 1) * 4096, 4096));
+  ASSERT_EQ(-1, run_fuse_sideload(vtab, ((1 << 18) + 1) * 4096, 4096));
+}
+
+TEST(SideloadTest, run_fuse_sideload) {
+  const std::vector<std::string> blocks = {
+    std::string(2048, 'a') + std::string(2048, 'b'),
+    std::string(2048, 'c') + std::string(2048, 'd'),
+    std::string(2048, 'e') + std::string(2048, 'f'),
+    std::string(2048, 'g') + std::string(2048, 'h'),
+  };
+  const std::string content = android::base::Join(blocks, "");
+  ASSERT_EQ(16384U, content.size());
+
+  provider_vtab vtab;
+  vtab.close = [](void) {};
+  vtab.read_block = [&blocks](uint32_t block, uint8_t* buffer, uint32_t fetch_size) {
+    if (block >= 4) return -1;
+    blocks[block].copy(reinterpret_cast<char*>(buffer), fetch_size);
+    return 0;
+  };
+
+  TemporaryDir mount_point;
+  pid_t pid = fork();
+  if (pid == 0) {
+    ASSERT_EQ(0, run_fuse_sideload(vtab, 16384, 4096, mount_point.path));
+    _exit(EXIT_SUCCESS);
+  }
+
+  std::string package = std::string(mount_point.path) + "/" + FUSE_SIDELOAD_HOST_FILENAME;
+  int status;
+  static constexpr int kSideloadInstallTimeout = 10;
+  for (int i = 0; i < kSideloadInstallTimeout; ++i) {
+    ASSERT_NE(-1, waitpid(pid, &status, WNOHANG));
+
+    struct stat sb;
+    if (stat(package.c_str(), &sb) == 0) {
+      break;
+    }
+
+    if (errno == ENOENT && i < kSideloadInstallTimeout - 1) {
+      sleep(1);
+      continue;
+    }
+    FAIL() << "Timed out waiting for the fuse-provided package.";
+  }
+
+  std::string content_via_fuse;
+  ASSERT_TRUE(android::base::ReadFileToString(package, &content_via_fuse));
+  ASSERT_EQ(content, content_via_fuse);
+
+  std::string exit_flag = std::string(mount_point.path) + "/" + FUSE_SIDELOAD_HOST_EXIT_FLAG;
+  struct stat sb;
+  ASSERT_EQ(0, stat(exit_flag.c_str(), &sb));
+
+  waitpid(pid, &status, 0);
+  ASSERT_EQ(0, WEXITSTATUS(status));
+  ASSERT_EQ(EXIT_SUCCESS, WEXITSTATUS(status));
 }