112 lines
2.3 KiB
Ruby
112 lines
2.3 KiB
Ruby
describe 'database' do
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before do
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`rm -rf test.db`
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end
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def run_script(commands)
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raw_output = nil
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IO.popen("./db test.db", "r+") do |pipe|
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commands.each do |command|
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pipe.puts command
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end
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pipe.close_write
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# Read entire output
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raw_output = pipe.gets(nil)
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end
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raw_output.split("\n")
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end
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it 'inserts and retreives a row' do
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result = run_script([
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"insert 1 user1 person1@example.com",
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"select",
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".exit",
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])
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expect(result).to eq([
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"db > Executed.",
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"db > (1, user1, person1@example.com)",
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"Executed.",
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"db > ",
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])
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end
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it 'prints error message when table is full' do
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script = (1..1401).map do |i|
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"insert #{i} user#{i} person#{i}@example.com"
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end
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script << ".exit"
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result = run_script(script)
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expect(result[-2]).to eq('db > Error: Table full.')
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end
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it 'allows inserting strings that are the maximum length' do
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long_username = "a"*32
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long_email = "a"*255
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script = [
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"insert 1 #{long_username} #{long_email}",
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"select",
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".exit",
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]
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result = run_script(script)
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expect(result).to eq([
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"db > Executed.",
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"db > (1, #{long_username}, #{long_email})",
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"Executed.",
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"db > ",
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])
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end
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it 'prints error message if strings are too long' do
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long_username = "a"*33
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long_email = "a"*256
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script = [
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"insert 1 #{long_username} #{long_email}",
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"select",
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".exit",
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]
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result = run_script(script)
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expect(result).to eq([
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"db > String is too long.",
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"db > Executed.",
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"db > ",
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])
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end
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it 'prints an error message if id is negative' do
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script = [
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"insert -1 cstack foo@bar.com",
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"select",
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".exit",
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]
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result = run_script(script)
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expect(result).to eq([
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"db > ID must be positive.",
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"db > Executed.",
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"db > ",
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])
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end
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it 'keeps data after closing connection' do
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result1 = run_script([
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"insert 1 user1 person1@example.com",
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".exit",
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])
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expect(result1).to eq([
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"db > Executed.",
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"db > ",
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])
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result2 = run_script([
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"select",
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".exit",
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])
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expect(result2).to eq([
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"db > (1, user1, person1@example.com)",
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"Executed.",
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"db > ",
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])
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end
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end
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