add tests

kitop · kitop · commit f9a5db9120b1 · 2014-06-12T12:41:00.000-04:00
diff --git a/json-waveform.gemspec b/json-waveform.gemspec
@@ -22,4 +22,5 @@ Gem::Specification.new do |s|
   s.executables << "json-waveform"
 
   s.add_dependency "ruby-audio", "~> 1.6.0"
+  s.add_development_dependency "minitest", "~> 4"
 end
diff --git a/makefile b/makefile
@@ -1,4 +1,7 @@
-.PHONY: console
+.PHONY: console test
+
+test: 
+	ruby test/json_waveform_test.rb
 
 console: 
 	irb -I./lib -r json-waveform
diff --git a/test/fixtures/sample.peak.json b/test/fixtures/sample.peak.json
@@ -0,0 +1 @@
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diff --git a/test/fixtures/sample.rms.json b/test/fixtures/sample.rms.json
@@ -0,0 +1 @@
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diff --git a/test/fixtures/sample.txt b/test/fixtures/sample.txt
@@ -0,0 +1 @@
+foo bar baz
diff --git a/test/json_waveform_test.rb b/test/json_waveform_test.rb
@@ -0,0 +1,69 @@
+require File.expand_path(File.join(File.dirname(__FILE__), "..", "lib", "json-waveform"))
+
+require "minitest"
+require "minitest/autorun"
+require "fileutils"
+require 'json'
+
+module Helpers
+  def fixture(file)
+    File.join(File.dirname(__FILE__), "fixtures", file)
+  end
+end
+
+class JsonWaveformTest < Minitest::Test
+  include Helpers
+  extend Helpers
+
+  def test_generates_waveform
+    result = JsonWaveform.generate(fixture("sample.wav"))
+
+    assert_equal File.read(fixture("sample.peak.json")), JSON.dump(result)
+  end
+
+  def test_generates_rms_waveform
+    result = JsonWaveform.generate(fixture("sample.wav"), method: :rms)
+
+    assert_equal File.read(fixture("sample.rms.json")), JSON.dump(result)
+  end
+
+  def test_changes_samples
+    result = JsonWaveform.generate(fixture("sample.wav"), samples: 100)
+
+    assert_in_delta 100, result.size, 1
+  end
+
+  def test_changes_amplitude
+    result = JsonWaveform.generate(fixture("sample.wav"), amplitude: 100)
+
+    original = JSON.parse(File.read(fixture("sample.peak.json")))
+
+    assert_in_delta original.max * 100, result.max, 1
+  end
+
+  def test_has_auto_width
+    result = JsonWaveform.generate(fixture("sample.wav"), auto_samples: 10)
+
+    assert_equal 210, result.size
+  end
+
+  def test_raises_error_if_not_given_readable_audio_source
+    assert_raises JsonWaveform::RuntimeError do
+      JsonWaveform.generate(fixture("sample.txt"))
+    end
+  end
+
+  def test_raises_exception_if_audio_not_exists
+    assert_raises JsonWaveform::RuntimeError do
+      JsonWaveform.generate(fixture("foo.wav"))
+    end
+  end
+
+  #def test_raises_deprecation_exception_if_ruby_audio_fails_to_read_source_file
+  #  begin
+  #    Waveform.generate(fixture("sample.txt"), output("shouldnt_exist.png"))
+  #  rescue Waveform::RuntimeError => e
+  #    assert_match /Hint: non-WAV files are no longer supported, convert to WAV first using something like ffmpeg/, e.message
+  #  end
+  #end
+end

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
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