frequencies_spec.rb

# #frequencies method
# should return and empty hash when passed an empty string
# should count words
# should count multiple words
# should be case insensitive
# should ignore short words and punctuation (. ! ? ,)

# #read_file method
# should read the dummy file

require_relative '../frequencies.rb'

describe "#frequencies" do
  it "should return and empty hash when passed an empty string" do
    result = frequencies("")
    expect(result).to eq({})
  end

  it "should count words" do
    result = frequencies("wagon wagon wagon")
    expect(result["wagon"]).to eq(3)
  end

  it "should count multiple words" do
    result = frequencies("the lazy dog jumped over the brown fox")
    expect(result["the"]).to eq(2)
    expect(result["dog"]).to eq(1)
    expect(result["cat"]).to eq(0)
  end

  it "should be case insensitive" do
    result = frequencies("wagon WAGON wagon")
    expect(result["wagon"]).to eq(3)
  end

  it "should ignore short words" do
    result = frequencies("a")
    expect(result).to eq({})
  end

  it "should ignore punctuation" do
    result = frequencies("wagon! wagon? wagon. wagon,")
    expect(result["wagon"]).to eq(4)
  end
end

describe "#read_file" do
  it "should read the dummy file" do
    text = read_file("dummy.txt")
    expect(text).to eq("the lazy dog jumped over the brown fox")
  end
end