71 lines
2.1 KiB
Crystal
71 lines
2.1 KiB
Crystal
require "../spec_helper"
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Spectator.describe "Expect Type", :smoke do
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context "with expect syntax" do
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it "ensures a type is cast" do
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value = 42.as(String | Int32)
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expect(value).to be_a(String | Int32)
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expect(value).to compile_as(String | Int32)
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value = expect(value).to be_a(Int32)
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expect(value).to eq(42)
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expect(value).to be_a(Int32)
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expect(value).to compile_as(Int32)
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expect(value).to_not respond_to(:downcase)
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end
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it "ensures a type is not nil" do
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value = 42.as(Int32?)
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expect(value).to be_a(Int32?)
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expect(value).to compile_as(Int32?)
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value = expect(value).to_not be_nil
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expect(value).to eq(42)
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expect(value).to be_a(Int32)
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expect(value).to compile_as(Int32)
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expect { value.not_nil! }.to_not raise_error(NilAssertionError)
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end
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it "removes types from a union" do
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value = 42.as(String | Int32)
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expect(value).to be_a(String | Int32)
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expect(value).to compile_as(String | Int32)
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value = expect(value).to_not be_a(String)
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expect(value).to eq(42)
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expect(value).to be_a(Int32)
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expect(value).to compile_as(Int32)
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expect(value).to_not respond_to(:downcase)
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end
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end
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context "with should syntax" do
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it "ensures a type is cast" do
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value = 42.as(String | Int32)
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value.should be_a(String | Int32)
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value = value.should be_a(Int32)
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value.should eq(42)
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value.should be_a(Int32)
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value.should compile_as(Int32)
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value.should_not respond_to(:downcase)
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end
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it "ensures a type is not nil" do
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value = 42.as(Int32?)
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value.should be_a(Int32?)
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value = value.should_not be_nil
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value.should eq(42)
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value.should be_a(Int32)
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value.should compile_as(Int32)
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expect { value.not_nil! }.to_not raise_error(NilAssertionError)
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end
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it "removes types from a union" do
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value = 42.as(String | Int32)
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value.should be_a(String | Int32)
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value = value.should_not be_a(String)
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value.should eq(42)
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value.should be_a(Int32)
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value.should compile_as(Int32)
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value.should_not respond_to(:downcase)
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end
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end
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end
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