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Contents
require 'spec_helper'
describe HashDiff do
it 'is able to diff two equal array' do
a = [1, 2, 3]
b = [1, 2, 3]
diff = described_class.diff_array_lcs(a, b)
diff.should == []
end
it 'is able to diff two arrays with one element in common' do
a = [1, 2, 3]
b = [1, 8, 7]
diff = described_class.diff_array_lcs(a, b)
diff.should == [['-', 2, 3], ['-', 1, 2], ['+', 1, 8], ['+', 2, 7]]
end
it 'is able to diff two arrays with nothing in common' do
a = [1, 2]
b = []
diff = described_class.diff_array_lcs(a, b)
diff.should == [['-', 1, 2], ['-', 0, 1]]
end
it 'is able to diff an empty array with an non-empty array' do
a = []
b = [1, 2]
diff = described_class.diff_array_lcs(a, b)
diff.should == [['+', 0, 1], ['+', 1, 2]]
end
it 'is able to diff two arrays with two elements in common' do
a = [1, 3, 5, 7]
b = [2, 3, 7, 5]
diff = described_class.diff_array_lcs(a, b)
diff.should == [['-', 0, 1], ['+', 0, 2], ['+', 2, 7], ['-', 4, 7]]
end
it 'is able to test two arrays with two common elements in different order' do
a = [1, 3, 4, 7]
b = [2, 3, 7, 5]
diff = described_class.diff_array_lcs(a, b)
diff.should == [['-', 0, 1], ['+', 0, 2], ['-', 2, 4], ['+', 3, 5]]
end
it 'is able to diff two arrays with similar elements' do
a = [{ 'a' => 1, 'b' => 2, 'c' => 3, 'd' => 4, 'e' => 5 }, 3]
b = [1, { 'a' => 1, 'b' => 2, 'c' => 3, 'e' => 5 }]
diff = described_class.diff_array_lcs(a, b)
diff.should == [['+', 0, 1], ['-', 2, 3]]
end
end
Version data entries
6 entries across 4 versions & 2 rubygems