tests: fix listing tests with `busted --list`

spec/unit/gettext_spec.lua

@@ -214,7 +214,9 @@ describe("GetText module", function()
     end)
 
     describe("language with standard plurals", function()
-        GetText.changeLang("nl_NL")
+        setup(function()
+            GetText.changeLang("nl_NL")
+        end)
         it("gettext should ignore fuzzy strings", function()
             assert.is_equal("Fuzzy", GetText("Fuzzy"))
         end)
@@ -239,7 +241,9 @@ describe("GetText module", function()
     end)
 
     describe("language with simple plurals n > 2", function()
-        GetText.changeLang("simple")
+        setup(function()
+            GetText.changeLang("simple")
+        end)
         it("gettext should ignore fuzzy strings", function()
             assert.is_equal("Fuzzy", GetText("Fuzzy"))
         end)
@@ -266,7 +270,9 @@ describe("GetText module", function()
     end)
 
     describe("language with no plurals", function()
-        GetText.changeLang("none")
+        setup(function()
+            GetText.changeLang("none")
+        end)
         it("gettext should ignore fuzzy strings", function()
             assert.is_equal("Fuzzy", GetText("Fuzzy"))
         end)
@@ -293,7 +299,9 @@ describe("GetText module", function()
     end)
 
     describe("language with complex plurals (Arabic)", function()
-        GetText.changeLang("ar")
+        setup(function()
+            GetText.changeLang("ar")
+        end)
         it("gettext should ignore fuzzy strings", function()
             assert.is_equal("Fuzzy", GetText("Fuzzy"))
         end)
@@ -322,7 +330,9 @@ describe("GetText module", function()
     end)
 
     describe("language with complex plurals (Russian)", function()
-        GetText.changeLang("ru")
+        setup(function()
+            GetText.changeLang("ru")
+        end)
         it("gettext should ignore fuzzy strings", function()
             assert.is_equal("Fuzzy", GetText("Fuzzy"))
         end)
@@ -351,7 +361,9 @@ describe("GetText module", function()
     -- This one's mainly to test fallback stuff. Russian/Polish are hard
     -- to follow, so there we focus on algorithm correctness.
     describe("language with many plurals", function()
-        GetText.changeLang("many")
+        setup(function()
+            GetText.changeLang("many")
+        end)
         it("gettext should ignore fuzzy strings", function()
             assert.is_equal("Fuzzy", GetText("Fuzzy"))
         end)

spec/unit/luadata_spec.lua

@@ -68,7 +68,10 @@ describe("luadata module", function()
     end)
 
     describe("table wrapper", function()
-        Settings:delSetting("key")
+
+        setup(function()
+            Settings:delSetting("key")
+        end)
 
         it("should add item to table", function()
             Settings:addTableItem("key", 1)
@@ -89,8 +92,11 @@ describe("luadata module", function()
     end)
 
     describe("backup data file", function()
-        local file = "dummy-test-file"
-        local d = Settings:open(file)
+        local file, d
+        setup(function()
+            file = "dummy-test-file"
+            d = Settings:open(file)
+        end)
         it("should generate data file", function()
             d:saveSetting("a", "a")
             assert.Equals("file", lfs.attributes(d.file, "mode"))

spec/unit/luasettings_spec.lua

@@ -67,7 +67,9 @@ describe("luasettings module", function()
     end)
 
     describe("table wrapper", function()
-        Settings:delSetting("key")
+        setup(function()
+            Settings:delSetting("key")
+        end)
 
         it("should add item to table", function()
             Settings:addTableItem("key", 1)