feat: core test output parsing (#82)

fixes #4

lua/neotest-golang/ast.lua

@@ -1,3 +1,5 @@
+--- Detect test names in Go *._test.go files.
+
 local lib = require("neotest.lib")
 
 local M = {}

lua/neotest-golang/convert.lua

@@ -1,3 +1,5 @@
+--- Converts one form of data to another.
+
 local M = {}
 
 -- Converts the test name into a regexp-friendly pattern, for usage in

lua/neotest-golang/init.lua

@@ -6,8 +6,7 @@ local ast = require("neotest-golang.ast")
 local runspec_dir = require("neotest-golang.runspec_dir")
 local runspec_file = require("neotest-golang.runspec_file")
 local runspec_test = require("neotest-golang.runspec_test")
-local results_dir = require("neotest-golang.results_dir")
-local results_test = require("neotest-golang.results_test")
+local parse = require("neotest-golang.parse")
 
 local M = {}
 
@@ -148,13 +147,13 @@ function M.Adapter.results(spec, result, tree)
   if spec.context.pos_type == "dir" then
     -- A test command executed a directory of tests and the output/status must
     -- now be processed.
-    local results = results_dir.results(spec, result, tree)
+    local results = parse.results(spec, result, tree)
     M.workaround_neotest_issue_391(result)
     return results
   elseif spec.context.pos_type == "test" then
     -- A test command executed a single test and the output/status must now be
     -- processed.
-    local results = results_test.results(spec, result, tree)
+    local results = parse.results(spec, result, tree)
     M.workaround_neotest_issue_391(result)
     return results
   end

lua/neotest-golang/json.lua

@@ -1,3 +1,5 @@
+--- JSON processing helpers.
+
 local M = {}
 
 --- Process output from 'go test -json' and return an iterable table.

lua/neotest-golang/results_dir.lua → lua/neotest-golang/parse.lua

@@ -1,3 +1,5 @@
+--- Parse the output from the go test command.
+
 local async = require("neotest.async")
 
 local options = require("neotest-golang.options")

lua/neotest-golang/runspec_dir.lua

@@ -1,3 +1,6 @@
+--- Helpers to build the command and context around running all tests of
+--- a Go module.
+
 local options = require("neotest-golang.options")
 local json = require("neotest-golang.json")
 

lua/neotest-golang/runspec_file.lua

@@ -1,3 +1,5 @@
+--- Helpers to build the command and context around running all tests of a file.
+
 local M = {}
 
 --- Build runspec for a directory.

lua/neotest-golang/runspec_test.lua

@@ -1,5 +1,8 @@
+--- Helpers to build the command and context around running a single test.
+
 local convert = require("neotest-golang.convert")
 local options = require("neotest-golang.options")
+local json = require("neotest-golang.json")
 
 local M = {}
 
@@ -9,11 +12,26 @@ local M = {}
 --- @return neotest.RunSpec | neotest.RunSpec[] | nil
 function M.build(pos, strategy)
   --- @type string
-  local test_name = convert.to_gotest_test_name(pos.id)
-  test_name = convert.to_gotest_regex_pattern(test_name)
+  local test_folder_absolute_path = string.match(pos.path, "(.+)/")
+
+  -- call 'go list -json ./...' to get test file data
+  local go_list_command = {
+    "go",
+    "list",
+    "-json",
+    "./...",
+  }
+  local go_list_command_result = vim.fn.system(
+    "cd "
+      .. test_folder_absolute_path
+      .. " && "
+      .. table.concat(go_list_command, " ")
+  )
+  local golist_output = json.process_golist_output(go_list_command_result)
 
   --- @type string
-  local test_folder_absolute_path = string.match(pos.path, "(.+)/")
+  local test_name = convert.to_gotest_test_name(pos.id)
+  test_name = convert.to_gotest_regex_pattern(test_name)
 
   local gotest = {
     "go",
@@ -37,6 +55,7 @@ function M.build(pos, strategy)
     context = {
       id = pos.id,
       test_filepath = pos.path,
+      golist_output = golist_output,
       pos_type = "test",
     },
   }