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Support casting types with should statements

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Michael Miller 2022-12-19 22:40:55 -07:00
parent acf810553a
commit c4bcf54b98
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3 changed files with 115 additions and 30 deletions
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92
spec/features/expect_type_spec.cr
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@ -1,36 +1,70 @@
require "../spec_helper"
Spectator.describe "Expect Type" do
it "ensures a type is cast" do
value = 42.as(String | Int32)
expect(value).to be_a(String | Int32)
expect(value).to compile_as(String | Int32)
value = expect(value).to be_a(Int32)
expect(value).to eq(42)
expect(value).to be_a(Int32)
expect(value).to compile_as(Int32)
expect(value).to_not respond_to(:downcase)
Spectator.describe "Expect Type", :smoke do
context "with expect syntax" do
it "ensures a type is cast" do
value = 42.as(String | Int32)
expect(value).to be_a(String | Int32)
expect(value).to compile_as(String | Int32)
value = expect(value).to be_a(Int32)
expect(value).to eq(42)
expect(value).to be_a(Int32)
expect(value).to compile_as(Int32)
expect(value).to_not respond_to(:downcase)
end
it "ensures a type is not nil" do
value = 42.as(Int32?)
expect(value).to be_a(Int32?)
expect(value).to compile_as(Int32?)
value = expect(value).to_not be_nil
expect(value).to eq(42)
expect(value).to be_a(Int32)
expect(value).to compile_as(Int32)
expect { value.not_nil! }.to_not raise_error(NilAssertionError)
end
it "removes types from a union" do
value = 42.as(String | Int32)
expect(value).to be_a(String | Int32)
expect(value).to compile_as(String | Int32)
value = expect(value).to_not be_a(String)
expect(value).to eq(42)
expect(value).to be_a(Int32)
expect(value).to compile_as(Int32)
expect(value).to_not respond_to(:downcase)
end
end
it "ensures a type is not nil" do
value = 42.as(Int32?)
expect(value).to be_a(Int32?)
expect(value).to compile_as(Int32?)
value = expect(value).to_not be_nil
expect(value).to eq(42)
expect(value).to be_a(Int32)
expect(value).to compile_as(Int32)
expect { value.not_nil! }.to_not raise_error(NilAssertionError)
end
context "with should syntax" do
it "ensures a type is cast" do
value = 42.as(String | Int32)
value.should be_a(String | Int32)
value = value.should be_a(Int32)
value.should eq(42)
value.should be_a(Int32)
value.should compile_as(Int32)
value.should_not respond_to(:downcase)
end
it "removes types from a union" do
value = 42.as(String | Int32)
expect(value).to be_a(String | Int32)
expect(value).to compile_as(String | Int32)
value = expect(value).to_not be_a(String)
expect(value).to eq(42)
expect(value).to be_a(Int32)
expect(value).to compile_as(Int32)
expect(value).to_not respond_to(:downcase)
it "ensures a type is not nil" do
value = 42.as(Int32?)
value.should be_a(Int32?)
value = value.should_not be_nil
value.should eq(42)
value.should be_a(Int32)
value.should compile_as(Int32)
expect { value.not_nil! }.to_not raise_error(NilAssertionError)
end
it "removes types from a union" do
value = 42.as(String | Int32)
value.should be_a(String | Int32)
value = value.should_not be_a(String)
value.should eq(42)
value.should be_a(Int32)
value.should compile_as(Int32)
value.should_not respond_to(:downcase)
end
end
end