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45 Zeilen
1.2 KiB
45 Zeilen
1.2 KiB
require "../helper"
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describe "Crisp::Interpreter" do
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describe "#initialize" do
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it "takes arguments as string value" do
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i = Crisp::Interpreter.new %w(foo bar baz)
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result = i.eval_string("*ARGV*")
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result.should be_a(Crisp::Expr)
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unwrapped = result.unwrap
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unwrapped.should be_a(Crisp::List)
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if unwrapped.is_a? Crisp::List
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unwrapped.size.should eq(3)
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a0 = unwrapped[0].unwrap
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a1 = unwrapped[1].unwrap
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a2 = unwrapped[2].unwrap
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a0.should be_a(String)
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a1.should be_a(String)
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a2.should be_a(String)
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a0.should eq("foo")
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a1.should eq("bar")
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a2.should eq("baz")
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end
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end
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end
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describe "#eval_string" do
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it "evaluates string of Crisp expression" do
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i = Crisp::Interpreter.new
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result = i.eval_string "(+ 1 2)"
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result.should be_a(Crisp::Expr)
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unwrapped = result.unwrap
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unwrapped.should be_a(Int32)
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unwrapped.should eq(3)
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end
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end
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describe "#run" do
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it "raises eval error with file which doesn't exist" do
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i = Crisp::Interpreter.new
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expect_raises Crisp::EvalException do
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i.run "/non/existent/file"
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end
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end
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end
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end
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