Patch up user-agent matching and add simple tests for them

test/lib/wakatime_service_test.rb

@@ -0,0 +1,73 @@
+require "test_helper"
+
+class WakatimeServiceTest < Minitest::Test
+  # Since parse_user_agent is a pure function that doesn't need database access,
+  # we can test it without loading any fixtures
+  def setup
+    ActiveRecord::FixtureSet.reset_cache
+  end
+
+  def test_parse_user_agent_with_vscode_wakatime_client
+    user_agent = "wakatime/v1.0.0 (darwin-arm64) go1.0.0 vscode/1.0.0 vscode-wakatime/1.0.0"
+    result = WakatimeService.parse_user_agent(user_agent)
+    assert_equal "darwin", result[:os]
+    assert_equal "vscode", result[:editor]
+    assert_nil result[:error]
+  end
+
+  def test_parse_user_agent_with_GitHub_Desktop
+    user_agent = "wakatime/v1.0.0 (darwin-arm64) go1.0.0 github-desktop/1.0.0"
+    result = WakatimeService.parse_user_agent(user_agent)
+    assert_equal "darwin", result[:os]
+    assert_equal "github-desktop", result[:editor]
+    assert_nil result[:error]
+  end
+
+  def test_parse_user_agent_with_Figma
+    user_agent = "wakatime/v1.0.0 (darwin-arm64) go1.0.0 figma/1.0.0"
+    result = WakatimeService.parse_user_agent(user_agent)
+    assert_equal "darwin", result[:os]
+    assert_equal "figma", result[:editor]
+    assert_nil result[:error]
+  end
+
+  def test_parse_user_agent_with_Terminal
+    user_agent = "wakatime/v1.0.0 (darwin-arm64) go1.0.0 terminal/1.0.0"
+    result = WakatimeService.parse_user_agent(user_agent)
+    assert_equal "darwin", result[:os]
+    assert_equal "terminal", result[:editor]
+    assert_nil result[:error]
+  end
+
+  def test_parse_user_agent_with_vim
+    user_agent = "wakatime/v1.0.0 (darwin-arm64) go1.0.0 vim/1.0.0"
+    result = WakatimeService.parse_user_agent(user_agent)
+    assert_equal "darwin", result[:os]
+    assert_equal "vim", result[:editor]
+    assert_nil result[:error]
+  end
+
+  def test_parse_user_agent_with_Windows
+    user_agent = "wakatime/v1.0.0 (windows-x86_64) go1.0.0 vscode/1.0.0"
+    result = WakatimeService.parse_user_agent(user_agent)
+    assert_equal "windows", result[:os]
+    assert_equal "vscode", result[:editor]
+    assert_nil result[:error]
+  end
+
+  def test_parse_user_agent_with_Cursor
+    user_agent = "wakatime/v1.0.0 (darwin-arm64) go1.0.0 cursor/1.0.0"
+    result = WakatimeService.parse_user_agent(user_agent)
+    assert_equal "darwin", result[:os]
+    assert_equal "cursor", result[:editor]
+    assert_nil result[:error]
+  end
+
+  def test_parse_user_agent_with_invalid_user_agent
+    user_agent = "invalid-user-agent"
+    result = WakatimeService.parse_user_agent(user_agent)
+    assert_equal "", result[:os]
+    assert_equal "", result[:editor]
+    assert_equal "failed to parse user agent string", result[:err]
+  end
+end