Add tests for Rubella::Ouput::ASCII

spec/spec_helper.rb

@@ -16,3 +16,4 @@ require 'rubella/weighting/per_value'
 require 'rubella/weighting/exponential'
 require 'rubella/weighting/per_overall_load'
 require 'rubella/output/base'
+require 'rubella/output/ascii'

spec/unit/rubella/output/ascii/new_spec.rb

@@ -0,0 +1,57 @@
+require 'spec_helper'
+
+describe Rubella::Output::ASCII, '.new' do
+
+  it "creates a new Rubella::Output::ASCII" do
+    output = Rubella::Output::ASCII.new nil
+
+    expect(output).to be_kind_of(Rubella::Output::ASCII)
+  end
+
+  it "uses the given data" do
+    output = Rubella::Output::AsciiImplementation.new Rubella::Storage.new([]), nil
+
+    expect(output.data).to be_kind_of(Rubella::Storage)
+    expect(output.data.data).to eq([])
+  end
+
+  it "uses the given field_size" do
+    output = Rubella::Output::Base.new nil, 5
+
+    expect(output.field_size).to eq(5)
+  end
+
+  it "sets the field_size by default to 1" do
+    output = Rubella::Output::ASCII.new nil
+
+    expect(output.field_size).to eq(1)
+  end
+
+  it "sets a set of basic symbols" do
+    output = Rubella::Output::ASCII.new nil
+
+    symbols = Hash.new
+      symbols["shades"]       = 
+        [" ", " ", "░", "░", "▒", "▒", "▓", "▓", "█", "█"]
+      symbols["shades_ascii"] =
+        [" ", "·", "⚬", "∞", "@", "#", "░", "▒", "▓", "█"]
+      symbols["ascii"]        =
+        [" ", "·", ",", ";", "o", "O", "%", "8", "@", "#"]
+      symbols["numbers"]      =
+        [" ", "1", "2", "3", "4", "5", "6", "7", "8", "9"]
+
+    expect(output.symbols).to eq(symbols)
+  end
+
+  it "uses the 'shades_ascii' set by default" do
+    output = Rubella::Output::ASCII.new nil
+
+    expect(output.used_symbols).to eq('shades_ascii')
+  end
+
+end
+
+class Rubella::Output::AsciiImplementation < Rubella::Output::Base
+  attr_reader :data
+end
+

spec/unit/rubella/output/ascii/render_spec.rb

@@ -0,0 +1,40 @@
+require 'spec_helper'
+
+describe Rubella::Output::ASCII, '.render' do
+
+  it 'creates an ASCII image from the given data' do
+    data    = [
+        [0, 0.1, 0.01],
+        [0, 0.3, 0.55],
+        [1, 0.64, 0.4]
+      ]
+    storage = Rubella::Storage.new(data)
+    output  = Rubella::Output::ASCII.new storage
+
+    # [" ", "·", "⚬", "∞", "@", "#", "░", "▒", "▓", "█"]
+    image = " \#@\n"+
+            "·∞░\n"+
+            "  █"
+
+    expect(output.render).to eq(image)
+  end
+
+  it 'creates an ASCII image from the given data using the settet symbols' do
+    data    = [
+        [0, 0.1, 0.01],
+        [0, 0.3, 0.55],
+        [1, 0.64, 0.4]
+      ]
+    storage = Rubella::Storage.new(data)
+    output  = Rubella::Output::ASCII.new storage
+    output.used_symbols = "numbers"
+
+    # [" ", "1", "2", "3", "4", "5", "6", "7", "8", "9"]
+    image = " 54\n"+
+            "136\n"+
+            "  9"
+
+    expect(output.render).to eq(image)
+  end
+
+end

spec/unit/rubella/output/ascii/symbols_eql_spec.rb

@@ -0,0 +1,26 @@
+require 'spec_helper'
+
+describe Rubella::Output::ASCII, '.symbols=' do
+
+  it "returns the set of symbols" do
+    output = Rubella::Output::ASCII.new nil
+
+    symbols = Hash.new
+      symbols["shades"]       = 
+        [" ", " ", "░", "░", "▒", "▒", "▓", "▓", "█", "█"]
+      symbols["shades_ascii"] =
+        [" ", "·", "⚬", "∞", "@", "#", "░", "▒", "▓", "█"]
+      symbols["ascii"]        =
+        [" ", "·", ",", ";", "o", "O", "%", "8", "@", "#"]
+      symbols["numbers"]      =
+        [" ", "1", "2", "3", "4", "5", "6", "7", "8", "9"]
+
+    expect(output.symbols).to eq(symbols)
+
+    symbols['blubber'] = [" ", "", ".", ".", "o", "o", "O", "O", "0", "0"]
+    output.symbols = symbols
+
+    expect(output.symbols).to eq(symbols)
+  end
+
+end

spec/unit/rubella/output/ascii/symbols_spec.rb

@@ -0,0 +1,21 @@
+require 'spec_helper'
+
+describe Rubella::Output::ASCII, '.symbols' do
+
+  it "returns the set of symbols" do
+    output = Rubella::Output::ASCII.new nil
+
+    symbols = Hash.new
+      symbols["shades"]       = 
+        [" ", " ", "░", "░", "▒", "▒", "▓", "▓", "█", "█"]
+      symbols["shades_ascii"] =
+        [" ", "·", "⚬", "∞", "@", "#", "░", "▒", "▓", "█"]
+      symbols["ascii"]        =
+        [" ", "·", ",", ";", "o", "O", "%", "8", "@", "#"]
+      symbols["numbers"]      =
+        [" ", "1", "2", "3", "4", "5", "6", "7", "8", "9"]
+
+    expect(output.symbols).to eq(symbols)
+  end
+
+end

spec/unit/rubella/output/ascii/used_symbols_eql_spec.rb

@@ -0,0 +1,19 @@
+require 'spec_helper'
+
+describe Rubella::Output::ASCII, '.used_symbols' do
+
+  it "sets the name of the current set of symbols" do
+    output = Rubella::Output::ASCII.new nil
+    expect(output.used_symbols).to eq('shades_ascii')
+
+    output.used_symbols= "numbers"
+    expect(output.used_symbols).to eq('numbers')
+  end
+
+  it "throws an AgrumentError if set is not available" do
+    output = Rubella::Output::ASCII.new nil
+
+    expect{ output.used_symbols= "foobar" }.to raise_error(ArgumentError)
+  end
+
+end

spec/unit/rubella/output/ascii/used_symbols_spec.rb

@@ -0,0 +1,11 @@
+require 'spec_helper'
+
+describe Rubella::Output::ASCII, '.used_symbols' do
+
+  it "returns the name of the current set of symbols" do
+    output = Rubella::Output::ASCII.new nil
+
+    expect(output.used_symbols).to eq('shades_ascii')
+  end
+
+end