poconvert: minor refactor; add unittest

poconvert.lua now recognizes fuzzy entries in PO files; these entries
are also added to the target file, but they are prefixed with "#" (i.e.
marked as comments).

1 files changed, 68 insertions, 0 deletions

diff --git a/advtrains/spec/poconvert_spec.lua b/advtrains/spec/poconvert_spec.lua
new file mode 100644
index 0000000..ef87619
--- /dev/null
+++ b/advtrains/spec/poconvert_spec.lua
@@ -0,0 +1,68 @@
+package.path = "../?.lua;" .. package.path
+advtrains = {}
+_G.advtrains = advtrains
+local poconvert = require("poconvert")
+
+describe("PO file converter", function()
+	it("should convert PO files", function()
+		assert.equals([[
+# textdomain: foo
+foo=bar
+baz=
+#@=wh\at\@n=@=w\as\@n
+multiline@nstrings=
+with context?=oder doch nicht]], poconvert.from_string("foo", [[
+msgid ""
+msgstr "whatever metadata"
+
+msgid "foo"
+msgstr "bar"
+
+msgid "baz"
+msgstr ""
+
+#, fuzzy
+msgid "=wh\\at\\\n"
+msgstr "=w\\as\\\n"
+
+msgid "multi"
+"line\n"
+"strings"
+msgstr ""
+
+msgctxt "i18n context"
+msgid "with context?"
+msgstr "oder doch nicht"]]))
+	end)
+	it("should reject invalid tokens", function()
+		assert.has.errors(function()
+			poconvert.from_string("", [[
+foo ""
+bar ""]])
+		end, "Invalid token: foo")
+	end)
+	it("should reject entries without a msgstr", function()
+		assert.has.errors(function()
+			poconvert.from_string("", [[msgid "foo"]])
+		end, "Missing translated string")
+	end)
+	it("should reject entries without a msgid", function()
+		assert.has.errors(function()
+			poconvert.from_string("", [[msgstr "foo"]])
+		end, "Missing untranslated string")
+	end)
+	it("should reject entries with improperly enclosed strings", function()
+		assert.has.errors(function()
+			poconvert.from_string("", [[
+msgid "foo"
+msgstr "bar \]])
+		end, "String extends beyond the end of input")
+	end)
+	it("should reject incomplete input", function()
+		assert.has.errors(function()
+			poconvert.from_string("", [[
+msgid "foo"
+msgstr]])
+		end, "No string provided for msgstr")
+	end)
+end)