Running tests.

4 files changed, 516 insertions, 16 deletions

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 468bbb4..a3bab9c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -27,6 +27,9 @@ jobs:
         run: |
           sudo apt-get install mingw-w64 && ./build.sh clean && CC=x86_64-w64-mingw32-gcc AR=x86_64-w64-mingw32-gcc-ar WINDRES=x86_64-w64-mingw32-windres LZMA_CONFIGURE="--host=x86_64-w64-mingw32" ARCHIVE_CONFIGURE="-DCMAKE_FIND_ROOT_PATH_MODE_PROGRAM=NEVER -DCMAKE_FIND_ROOT_PATH_MODE_LIBRARY=ONLY -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE=ONLY -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_SYSTEM_NAME=Windows" CURL_CONFIGURE="-DCMAKE_FIND_ROOT_PATH_MODE_PROGRAM=NEVER -DCMAKE_FIND_ROOT_PATH_MODE_LIBRARY=ONLY -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE=ONLY -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_SYSTEM_NAME=Windows" GIT2_CONFIGURE="-DCMAKE_FIND_ROOT_PATH_MODE_PROGRAM=NEVER -DCMAKE_FIND_ROOT_PATH_MODE_LIBRARY=ONLY -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE=ONLY -DBUILD_CLAR=OFF -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_SYSTEM_NAME=Windows -DDLLTOOL=x86_64-w64-mingw32-dlltool" SSL_CONFIGURE="no-tests mingw" ./build.sh -DLPM_VERSION='"'$VERSION-x86_64-windows-`git rev-parse --short HEAD`'"' && zip -r lpm-$VERSION-x86_64-windows.zip lpm.exe
           cp lpm.exe lpm.x86_64-windows.exe
+      - name: Run Tests
+        run: |
+          gcc -O3 -Ilib/lua lib/lua/onelua.c -DMAKE_LUA -DLUA_USE_LINUX -lm -o lua && ./lua t/run.lua
       - name: Create Release(s)
         env: { GITHUB_TOKEN: "${{ github.token }}" }
         run: |
diff --git a/.gitignore b/.gitignore
index 52dce0a..839171d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 lpm
+lua
 lpm-*
 *.o
 lpm.lua.c
diff --git a/src/lpm.lua b/src/lpm.lua
index 8dfc8d8..b915762 100644
--- a/src/lpm.lua
+++ b/src/lpm.lua
@@ -369,6 +369,7 @@ function common.slice(t, i, l) local n = {} for j = i, l ~= nil and (i - l) or #
 function common.join(j, l) local s = "" for i, v in ipairs(l) do if i > 1 then s = s .. j .. v else s = v end end return s end
 function common.sort(t, f) table.sort(t, f) return t end
 function common.write(path, contents) local f, err = io.open(path, "wb") if not f then error("can't write to " .. path .. ": " .. err) end f:write(contents) f:flush() end
+function common.read(path) local f, err = io.open(path, "rb") if not f then error("can't read from " .. path .. ": " .. err) end return f:read("*all") end
 function common.split(splitter, str)
   local o = 1
   local res = {}
@@ -494,7 +495,14 @@ local function match_version(version, pattern)
 end
 
 
-
+-- There can exist many different versions of a plugin. All statuses are relative to a particular lite bottle.
+-- available: Plugin is available in a repository, and can be installed. There is no comparable version on the system.
+-- upgradable: Plugin is installed, but does not match the highest version in any repository.
+-- orphan: Plugin is installed, but there is no corresponding plugin in any repository.
+-- installed: Plugin is installed, and matches the highest version in any repository, or highest version is incompatible.
+-- core: Plugin is a part of the lite data directory, and doesn't have corresponding plugins in any repository.
+-- bundled: Plugin is part of the lite data directory, but has corresponding plugins in any repository.
+-- incompatible: Plugin is not installed and conflicts with existing installed plugins.
 function Plugin.__index(self, idx) return rawget(self, idx) or Plugin[idx] end
 function Plugin.new(repository, metadata)
   local type = metadata.type or "plugin"
@@ -517,6 +525,21 @@ function Plugin.new(repository, metadata)
   return self
 end
 
+-- Determines whether two plugins located at different paths are actually different based on their contents.
+function Plugin.is_path_different(path1, path2) 
+  if path1:find("%.lua$") then
+    if not path2:find("%.lua$") then return true end
+    local stat1, stat2 = system.stat(path1), system.stat(path2)
+    if not stat1 or not stat2 or stat1.size ~= stat2.size then return true end
+    if system.hash(path1, "file") ~= system.hash(path2, "file") then return true end
+  else
+    if path2:find("%.lua$") then return true end
+    return false
+  end
+  return false
+end
+
+
 function Plugin:get_install_path(bottle)
   local folder = self.type == "library" and "libraries" or "plugins" 
   local path = (((self:is_core(bottle) or self:is_bundled()) and bottle.lite_xl.datadir_path) or (bottle.local_path and (bottle.local_path .. PATHSEP .. "user") or USERDIR)) .. PATHSEP .. folder .. PATHSEP .. (self.path and common.basename(self.path):gsub("%.lua$", "") or self.name)
@@ -526,7 +549,13 @@ end
 
 function Plugin:is_core(bottle) return self.type == "core" end
 function Plugin:is_bundled(bottle) return self.type == "bundled" end
-function Plugin:is_installed(bottle) return self:is_core(bottle) or (bottle.lite_xl:is_compatible(self) and system.stat(self:get_install_path(bottle))) end
+function Plugin:is_installed(bottle) 
+  if self:is_core(bottle) or self:is_bundled(bottle) or not self.repository then return true end
+  local install_path = self:get_install_path(bottle)
+  if not system.stat(install_path) then return false end
+  if #common.grep({ bottle:get_plugin(self.name, nil, {  }) }, function(plugin) return not plugin.repository end) > 0 then return false end
+  return not Plugin.is_path_different(install_path, self.local_path)
+end
 function Plugin:is_incompatible(plugin) 
   return (self.dependencies[plugin.name] and not match_version(plugin.version, self.dependencies[plugin.name] and self.dependencies[plugin.name].version)) or 
     (self.conflicts[plugin.name] and match_version(plugin.version, self.conflicts[plugin.name] and self.conflicts[plugin.name].version)) 
@@ -703,7 +732,7 @@ function Repository:parse_manifest(already_pulling)
   if system.stat(self.local_path) and system.stat(self.local_path .. PATHSEP .. (self.commit or self.branch)) then
     self.manifest_path = self.local_path .. PATHSEP .. (self.commit or self.branch) .. PATHSEP .. "manifest.json"
     if not system.stat(self.manifest_path) then self:generate_manifest() end
-    self.manifest = json.decode(io.open(self.manifest_path, "rb"):read("*all")) 
+    self.manifest = json.decode(common.read(self.manifest_path)) 
     self.plugins = {}
     self.remotes = {}
     for i, metadata in ipairs(self.manifest["plugins"] or {}) do
@@ -969,7 +998,12 @@ local function get_repository_plugins()
   local t, hash = { }, { }
   for i,p in ipairs(common.flat_map(repositories, function(r) return r.plugins end)) do
     local id = p.name .. ":" .. p.version
-    if not hash[id] then table.insert(t, p) hash[id] = p hash[p.name] = p end
+    if not hash[id] then 
+      table.insert(t, p) 
+      hash[id] = p 
+      if not hash[p.name] then hash[p.name] = {} end
+      table.insert(hash[p.name], p )
+    end
   end
   return t, hash
 end
@@ -981,17 +1015,21 @@ function Bottle:all_plugins()
     self.lite_xl.datadir_path .. PATHSEP .. "plugins"
   }
   for i, plugin_path in ipairs(common.grep(plugin_paths, function(e) return system.stat(e) end)) do
-    for k, v in ipairs(common.grep(system.ls(plugin_path), function(e) return i == 2 or not hash[e:gsub("%.lua$", "")] end)) do
+    for j, v in ipairs(system.ls(plugin_path)) do
       local name = v:gsub("%.lua$", "")
-      table.insert(t, Plugin.new(nil, {
-        name = name,
-        type = i == 2 and (hash[name] and "bundled" or "core"),
-        organization = (v:find("%.lua$") and "singleton" or "complex"),
-        mod_version = self.lite_xl.mod_version,
-        path = "plugins/" .. v,
-        version = "1.0",
-        description = (hash[name] and hash[name].description or nil)
-      }))
+      local path = plugin_path .. PATHSEP .. v
+      local matching = hash[name] and common.grep(hash[name], function(e) return not Plugin.is_path_different(path, e.local_path) end)[1]
+      if i == 2 or not hash[name] or not matching then
+        table.insert(t, Plugin.new(nil, {
+          name = name,
+          type = i == 2 and (hash[name] and "bundled" or "core"),
+          organization = (v:find("%.lua$") and "singleton" or "complex"),
+          mod_version = self.lite_xl.mod_version,
+          path = "plugins" .. PATHSEP .. v,
+          version = "1.0",
+          description = (hash[name] and hash[name][1].description or nil)
+        }))
+      end
     end
   end
   return t
@@ -1439,7 +1477,7 @@ Usage: lpm COMMAND [...ARGUMENTS] [--json] [--userdir=directory]
   [--cachedir=directory] [--quiet] [--version] [--help] [--remotes]
   [--ssl_certs=directory/file] [--force] [--arch=]] .. _G.ARCH .. [[]
   [--assume-yes] [--no-install-optional] [--verbose] [--mod-version=3]
-  [--datadir=directory]
+  [--datadir=directory] [--binary=path]
 
 LPM is a package manager for `lite-xl`, written in C (and packed-in lua).
 
@@ -1594,7 +1632,7 @@ Flags have the following effects:
     end
   end
   if system.stat(CACHEDIR .. PATHSEP .. "lite_xls" .. PATHSEP .. "locals.json") then
-    for i, lite_xl in ipairs(json.decode(io.open(CACHEDIR .. PATHSEP .. "lite_xls" .. PATHSEP .. "locals.json", "rb"):read("*all"))) do
+    for i, lite_xl in ipairs(json.decode(common.read(CACHEDIR .. PATHSEP .. "lite_xls" .. PATHSEP .. "locals.json"))) do
       table.insert(lite_xls, LiteXL.new(nil, { version = lite_xl.version, mod_version = lite_xl.mod_version, path = lite_xl.path, tags = { "local" } }))
     end
   end
diff --git a/t/run.lua b/t/run.lua
new file mode 100644
index 0000000..d99e417
--- /dev/null
+++ b/t/run.lua
@@ -0,0 +1,458 @@
+setmetatable(_G, { __index = function(t, k) if not rawget(t, k) then error("cannot get undefined global variable: " .. k, 2) end end, __newindex = function(t, k) error("cannot set global variable: " .. k, 2) end  })
+
+-- Begin rxi JSON library.
+local json = { _version = "0.1.2" }
+local encode
+local escape_char_map = {
+  [ "\\" ] = "\\",
+  [ "\"" ] = "\"",
+  [ "\b" ] = "b",
+  [ "\f" ] = "f",
+  [ "\n" ] = "n",
+  [ "\r" ] = "r",
+  [ "\t" ] = "t",
+}
+
+local escape_char_map_inv = { [ "/" ] = "/" }
+for k, v in pairs(escape_char_map) do
+  escape_char_map_inv[v] = k
+end
+
+
+local function escape_char(c)
+  return "\\" .. (escape_char_map[c] or string.format("u%04x", c:byte()))
+end
+
+
+local function encode_nil(val)
+  return "null"
+end
+
+
+local function encode_table(val, stack)
+  local res = {}
+  stack = stack or {}
+
+  -- Circular reference?
+  if stack[val] then error("circular reference") end
+
+  stack[val] = true
+
+  if rawget(val, 1) ~= nil or next(val) == nil then
+    -- Treat as array -- check keys are valid and it is not sparse
+    local n = 0
+    for k in pairs(val) do
+      if type(k) ~= "number" then
+        error("invalid table: mixed or invalid key types")
+      end
+      n = n + 1
+    end
+    if n ~= #val then
+      error("invalid table: sparse array")
+    end
+    -- Encode
+    for i, v in ipairs(val) do
+      table.insert(res, encode(v, stack))
+    end
+    stack[val] = nil
+    return "[" .. table.concat(res, ",") .. "]"
+
+  else
+    -- Treat as an object
+    for k, v in pairs(val) do
+      if type(k) ~= "string" then
+        error("invalid table: mixed or invalid key types")
+      end
+      table.insert(res, encode(k, stack) .. ":" .. encode(v, stack))
+    end
+    stack[val] = nil
+    return "{" .. table.concat(res, ",") .. "}"
+  end
+end
+
+
+local function encode_string(val)
+  return '"' .. val:gsub('[%z\1-\31\\"]', escape_char) .. '"'
+end
+
+
+local function encode_number(val)
+  -- Check for NaN, -inf and inf
+  if val ~= val or val <= -math.huge or val >= math.huge then
+    error("unexpected number value '" .. tostring(val) .. "'")
+  end
+  return string.format("%.14g", val)
+end
+
+
+local type_func_map = {
+  [ "nil"     ] = encode_nil,
+  [ "table"   ] = encode_table,
+  [ "string"  ] = encode_string,
+  [ "number"  ] = encode_number,
+  [ "boolean" ] = tostring,
+}
+
+
+encode = function(val, stack)
+  local t = type(val)
+  local f = type_func_map[t]
+  if f then
+    return f(val, stack)
+  end
+  error("unexpected type '" .. t .. "'")
+end
+
+
+function json.encode(val)
+  return ( encode(val) )
+end
+
+local parse
+
+local function create_set(...)
+  local res = {}
+  for i = 1, select("#", ...) do
+    res[ select(i, ...) ] = true
+  end
+  return res
+end
+
+local space_chars   = create_set(" ", "\t", "\r", "\n")
+local delim_chars   = create_set(" ", "\t", "\r", "\n", "]", "}", ",")
+local escape_chars  = create_set("\\", "/", '"', "b", "f", "n", "r", "t", "u")
+local literals      = create_set("true", "false", "null")
+
+local literal_map = {
+  [ "true"  ] = true,
+  [ "false" ] = false,
+  [ "null"  ] = nil,
+}
+
+
+local function next_char(str, idx, set, negate)
+  for i = idx, #str do
+    if set[str:sub(i, i)] ~= negate then
+      return i
+    end
+  end
+  return #str + 1
+end
+
+
+local function decode_error(str, idx, msg)
+  local line_count = 1
+  local col_count = 1
+  for i = 1, idx - 1 do
+    col_count = col_count + 1
+    if str:sub(i, i) == "\n" then
+      line_count = line_count + 1
+      col_count = 1
+    end
+  end
+  error( string.format("%s at line %d col %d", msg, line_count, col_count) )
+end
+
+
+local function codepoint_to_utf8(n)
+  -- http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=iws-appendixa
+  local f = math.floor
+  if n <= 0x7f then
+    return string.char(n)
+  elseif n <= 0x7ff then
+    return string.char(f(n / 64) + 192, n % 64 + 128)
+  elseif n <= 0xffff then
+    return string.char(f(n / 4096) + 224, f(n % 4096 / 64) + 128, n % 64 + 128)
+  elseif n <= 0x10ffff then
+    return string.char(f(n / 262144) + 240, f(n % 262144 / 4096) + 128,
+                       f(n % 4096 / 64) + 128, n % 64 + 128)
+  end
+  error( string.format("invalid unicode codepoint '%x'", n) )
+end
+
+
+local function parse_unicode_escape(s)
+  local n1 = tonumber( s:sub(1, 4),  16 )
+  local n2 = tonumber( s:sub(7, 10), 16 )
+   -- Surrogate pair?
+  if n2 then
+    return codepoint_to_utf8((n1 - 0xd800) * 0x400 + (n2 - 0xdc00) + 0x10000)
+  else
+    return codepoint_to_utf8(n1)
+  end
+end
+
+
+local function parse_string(str, i)
+  local res = ""
+  local j = i + 1
+  local k = j
+
+  while j <= #str do
+    local x = str:byte(j)
+
+    if x < 32 then
+      decode_error(str, j, "control character in string")
+
+    elseif x == 92 then -- `\`: Escape
+      res = res .. str:sub(k, j - 1)
+      j = j + 1
+      local c = str:sub(j, j)
+      if c == "u" then
+        local hex = str:match("^[dD][89aAbB]%x%x\\u%x%x%x%x", j + 1)
+                 or str:match("^%x%x%x%x", j + 1)
+                 or decode_error(str, j - 1, "invalid unicode escape in string")
+        res = res .. parse_unicode_escape(hex)
+        j = j + #hex
+      else
+        if not escape_chars[c] then
+          decode_error(str, j - 1, "invalid escape char '" .. c .. "' in string")
+        end
+        res = res .. escape_char_map_inv[c]
+      end
+      k = j + 1
+
+    elseif x == 34 then -- `"`: End of string
+      res = res .. str:sub(k, j - 1)
+      return res, j + 1
+    end
+
+    j = j + 1
+  end
+
+  decode_error(str, i, "expected closing quote for string")
+end
+
+
+local function parse_number(str, i)
+  local x = next_char(str, i, delim_chars)
+  local s = str:sub(i, x - 1)
+  local n = tonumber(s)
+  if not n then
+    decode_error(str, i, "invalid number '" .. s .. "'")
+  end
+  return n, x
+end
+
+
+local function parse_literal(str, i)
+  local x = next_char(str, i, delim_chars)
+  local word = str:sub(i, x - 1)
+  if not literals[word] then
+    decode_error(str, i, "invalid literal '" .. word .. "'")
+  end
+  return literal_map[word], x
+end
+
+
+local function parse_array(str, i)
+  local res = {}
+  local n = 1
+  i = i + 1
+  while 1 do
+    local x
+    i = next_char(str, i, space_chars, true)
+    -- Empty / end of array?
+    if str:sub(i, i) == "]" then
+      i = i + 1
+      break
+    end
+    -- Read token
+    x, i = parse(str, i)
+    res[n] = x
+    n = n + 1
+    -- Next token
+    i = next_char(str, i, space_chars, true)
+    local chr = str:sub(i, i)
+    i = i + 1
+    if chr == "]" then break end
+    if chr ~= "," then decode_error(str, i, "expected ']' or ','") end
+  end
+  return res, i
+end
+
+
+local function parse_object(str, i)
+  local res = {}
+  i = i + 1
+  while 1 do
+    local key, val
+    i = next_char(str, i, space_chars, true)
+    -- Empty / end of object?
+    if str:sub(i, i) == "}" then
+      i = i + 1
+      break
+    end
+    -- Read key
+    if str:sub(i, i) ~= '"' then
+      decode_error(str, i, "expected string for key")
+    end
+    key, i = parse(str, i)
+    -- Read ':' delimiter
+    i = next_char(str, i, space_chars, true)
+    if str:sub(i, i) ~= ":" then
+      decode_error(str, i, "expected ':' after key")
+    end
+    i = next_char(str, i + 1, space_chars, true)
+    -- Read value
+    val, i = parse(str, i)
+    -- Set
+    res[key] = val
+    -- Next token
+    i = next_char(str, i, space_chars, true)
+    local chr = str:sub(i, i)
+    i = i + 1
+    if chr == "}" then break end
+    if chr ~= "," then decode_error(str, i, "expected '}' or ','") end
+  end
+  return res, i
+end
+
+
+local char_func_map = {
+  [ '"' ] = parse_string,
+  [ "0" ] = parse_number,
+  [ "1" ] = parse_number,
+  [ "2" ] = parse_number,
+  [ "3" ] = parse_number,
+  [ "4" ] = parse_number,
+  [ "5" ] = parse_number,
+  [ "6" ] = parse_number,
+  [ "7" ] = parse_number,
+  [ "8" ] = parse_number,
+  [ "9" ] = parse_number,
+  [ "-" ] = parse_number,
+  [ "t" ] = parse_literal,
+  [ "f" ] = parse_literal,
+  [ "n" ] = parse_literal,
+  [ "[" ] = parse_array,
+  [ "{" ] = parse_object,
+}
+
+
+parse = function(str, idx)
+  local chr = str:sub(idx, idx)
+  local f = char_func_map[chr]
+  if f then
+    return f(str, idx)
+  end
+  decode_error(str, idx, "unexpected character '" .. chr .. "'")
+end
+
+
+function json.decode(str)
+  if type(str) ~= "string" then
+    error("expected argument of type string, got " .. type(str))
+  end
+  local res, idx = parse(str, next_char(str, 1, space_chars, true))
+  idx = next_char(str, idx, space_chars, true)
+  if idx <= #str then
+    decode_error(str, idx, "trailing garbage")
+  end
+  return res
+end
+
+local tmpdir = os.getenv("TMPDIR") or "/tmp"
+local fast = os.getenv("FAST")
+local last_command_result, last_command
+local userdir = tmpdir .. "/lpmtest"
+local function lpm(cmd)
+  last_command = "./lpm --quiet --json --userdir=" .. userdir .. " " .. cmd
+  local pipe = io.popen(last_command, "r")
+  last_command_result = json.decode(pipe:read("*all"))
+  local success = pipe:close()
+  if not success then error("error calling lpm", 2) end
+  return last_command_result
+end
+
+local function assert_exists(path)
+  if not io.open(path, "rb")  then error("assertion failed: file " .. path .. " does not exist", 2) end
+end
+local function assert_not_exists(path)
+  if io.open(path, "rb") then error("assertion failed: file " .. path .. " exists", 2) end
+end
+
+local function run_tests(tests, arg)
+  local fail_count = 0
+  local names = {}
+  if #arg == 0 then
+    for k,v in pairs(tests) do table.insert(names, k) end  
+  else
+    names = arg
+  end
+  table.sort(names)
+  local max_name = 0
+  for i,k in ipairs(names) do max_name = math.max(max_name, #k) end  
+  for i,k in ipairs(names) do
+    local v = tests[k]
+    if fast then
+      os.execute("rm -rf " .. tmpdir .. "/lpmtest/plugins && mkdir -p " .. tmpdir .. "/lpmtest");
+    else
+      os.execute("rm -rf " .. tmpdir .. "/lpmtest && mkdir -p " .. tmpdir .. "/lpmtest");
+    end
+    io.stdout:write(string.format("test %-" .. (max_name + 1) .. "s: ", k))
+    local failed = false
+    xpcall(v, function(err)
+      print("[FAIL]: " .. err)
+      print()
+      print()
+      print("Last Command: " .. last_command)
+      print(json.encode(last_command_result)) 
+      fail_count = fail_count + 1
+      failed = true
+    end)
+    if not failed then
+      print("[PASSED]")
+    end
+  end
+  os.exit(fail_count)
+end
+
+local tests = {
+  ["00_install_singleton"] = function()
+    local plugins = lpm("list bracketmatch")["plugins"]
+    assert(#plugins == 1)
+    assert(plugins[1].organization == "singleton")
+    assert(plugins[1].status == "available")
+    local actions = lpm("install bracketmatch")["actions"]
+    assert(actions[1]:find("Installing singleton"))
+    assert_exists(userdir .. "/plugins/bracketmatch.lua")
+    actions = lpm("uninstall bracketmatch")["actions"]
+    assert_not_exists(userdir .. "/plugins/bracketmatch.lua")
+  end,
+  ["01_upgrade_singleton"] = function()
+    lpm("install bracketmatch")
+    local plugins = lpm("list bracketmatch")["plugins"]
+    assert(#plugins == 1)
+    assert(plugins[1].status == "installed")
+    assert_exists(plugins[1].path)
+    io.open(plugins[1].path, "ab"):write("-- this is a test comment to modify the checksum"):close()
+    plugins = lpm("list bracketmatch")["plugins"]
+    assert(#plugins == 2)
+    lpm("install bracketmatch")
+    plugins = lpm("list bracketmatch")["plugins"]
+    assert(#plugins == 1)
+  end,
+  ["02_install_complex"] = function()
+    local plugins = lpm("list plugin_manager")["plugins"]
+    assert(#plugins == 1)
+    assert(plugins[1].organization == "complex")
+    assert(plugins[1].status == "available")
+    local actions = lpm("install plugin_manager")["actions"]
+    assert_exists(userdir .. "/libraries/json.lua")
+    assert_exists(userdir .. "/plugins/plugin_manager")
+    assert_exists(userdir .. "/plugins/plugin_manager/init.lua")
+    actions = lpm("uninstall plugin_manager")["actions"]
+    assert_not_exists(userdir .. "/plugins/plugin_manager")
+  end,
+  ["03_upgrade_complex"] = function()
+    local actions = lpm("install plugin_manager")
+    local plugins = lpm("list plugin_manager")["plugins"]
+    assert(#plugins == 1)
+    assert(plugins[1].organization == "complex")
+    assert(plugins[1].status == "installed")
+  end,
+}
+
+
+run_tests(tests, arg)