Added plain format

It is intended mostly for testing purposes

3 files changed, 101 insertions, 0 deletions

diff --git a/activity/formats/plain.lua b/activity/formats/plain.lua
new file mode 100644
index 0000000..9e12bb6
--- /dev/null
+++ b/activity/formats/plain.lua
@@ -0,0 +1,49 @@
+local plain = {}
+
+
+function plain.start_document (_)
+	return ""
+end
+
+
+function plain.end_document ()
+	return ""
+end
+
+
+function plain.start_table ()
+	return ""
+end
+
+
+function plain.end_table ()
+	return ""
+end
+
+
+function plain.start_row ()
+	return ""
+end
+
+
+function plain.end_row ()
+	return "\n"
+end
+
+
+function plain.label (name)
+	return ("%3s "):format(name)
+end
+
+
+function plain.spot ()
+	return "_"
+end
+
+
+function plain.cell (level)
+	return ("%1d"):format(level)
+end
+
+
+return plain
diff --git a/spec/activity_spec.lua b/spec/activity_spec.lua
new file mode 100644
index 0000000..634a228
--- /dev/null
+++ b/spec/activity_spec.lua
@@ -0,0 +1,49 @@
+local activity = require "activity"
+local plain = require "activity.formats.plain"
+
+local Y2024 = [[
+    _0000000000000000000000000000000000000000000000000000
+Mon 00000000000000000000000000000000000000000000000000000
+    00000000000000000000000000000000000000000000000000000
+Wed 0000000000000000000000000000000000000000000000000000_
+    0000000000000000000000000000000000000000000000000000_
+Fri 0000000000000000000000000000000000000000000000000000_
+    0000000000000000000000000000000000000000000000000000_
+]]
+
+local Y2023 = [[
+    00000000000000000000000000000000000000000000000000000
+Mon 0000000000000000000000000000000000000000000000000000_
+    0000000000000000000000000000000000000000000000000000_
+Wed 0000000000000000000000000000000000000000000000000000_
+    0000000000000000000000000000000000000000000000000000_
+Fri 0000000000000000000000000000000000000000000000000000_
+    0000000000000000000000000000000000000000000000000000_
+]]
+
+local Y2020 = [[
+    _0000000000000000000000000000000000000000000000000000
+Mon _0000000000000000000000000000000000000000000000000000
+    _0000000000000000000000000000000000000000000000000000
+Wed 00000000000000000000000000000000000000000000000000000
+    00000000000000000000000000000000000000000000000000000
+Fri 0000000000000000000000000000000000000000000000000000_
+    0000000000000000000000000000000000000000000000000000_
+]]
+
+
+describe("Generator", function()
+	describe("shall generate correct table for year", function()
+		it("2024", function()
+			assert.are.equal(Y2024, activity.generate_table(2024, {}, plain))
+		end)
+
+		it("2023", function()
+			assert.are.equal(Y2023, activity.generate_table(2023, {}, plain))
+		end)
+
+		it("2020", function()
+			assert.are.equal(Y2020, activity.generate_table(2020, {}, plain))
+		end)
+	end)
+end)
diff --git a/spec/dates_spec.lua b/spec/dates_spec.lua
index 1c5382e..b1d3594 100644
--- a/spec/dates_spec.lua
+++ b/spec/dates_spec.lua
@@ -1,5 +1,6 @@
 local dates = require "activity.dates"
 
+
 describe("Days in a year", function()
 	it("should support regular years", function()
 		assert.are.equal(365, dates.days_in(1970))
@@ -20,6 +21,7 @@ describe("Days in a year", function()
 	end)
 end)
 
+
 describe("This year is", function()
 	local this_year = tonumber(os.date"%Y")  -- Quite useless test
 
@@ -28,6 +30,7 @@ describe("This year is", function()
 	end)
 end)
 
+
 describe("First week day of", function()
 	it("2023 is Sunday", function()
 		assert.are.equal(1, dates.first_week_day(2023))