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Update tests to use new Double usage

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Michael Miller 2022-03-12 13:54:40 -07:00
parent c8864b169e
commit 5b1a5cd49d
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1 changed files with 111 additions and 91 deletions
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146
spec/spectator/mocks/double_spec.cr
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@ -1,9 +1,13 @@
require "../../spec_helper"
Spectator.describe Spectator::Double do
Spectator::Double.define(TestDouble, foo: 42, bar: "baz")
Spectator::Double.define(EmptyDouble)
Spectator::Double.define(FooBarDouble, "dbl-name", foo: 42, bar: "baz")
subject(dbl) { TestDouble.new("dbl-name") }
# The subject `dbl` must be carefully used in sub-contexts, otherwise it pollutes parent scopes.
# This changes the type of `dbl` to `Double`, which produces a union of methods and their return types.
context "plain double" do
subject(dbl) { FooBarDouble.new }
it "responds to defined messages" do
aggregate_failures do
@ -17,7 +21,7 @@ Spectator.describe Spectator::Double do
end
it "reports the name in errors" do
expect { dbl.baz }.to raise_error(/dbl-name/)
expect { dbl.baz }.to raise_error(/"dbl-name"/)
end
it "reports arguments" do
@ -31,10 +35,15 @@ Spectator.describe Spectator::Double do
end
end
context "without a double name" do
Spectator::Double.define(TestDouble, foo: 42)
it "uses nil for undefined messages" do
expect { dbl.baz }.to compile_as(Nil)
end
end
subject(dbl) { TestDouble.new }
context "without a double name" do
Spectator::Double.define(NamelessDouble, foo: 42)
subject(dbl) { NamelessDouble.new }
it "reports as anonymous" do
expect { dbl.baz }.to raise_error(/anonymous/i)
@ -43,29 +52,29 @@ Spectator.describe Spectator::Double do
context "with common object methods" do
subject(dbl) do
Spectator::Double.new(
"!=": "!=",
"!~": "!~",
"==": "==",
"===": "===",
"=~": "=~",
"class": "class",
"dup": "dup",
"hash": "hash",
"in?": true,
"inspect": "inspect",
"itself": "itself",
"not_nil!": "not_nil!",
"pretty_inspect": "pretty_inspect",
"tap": "tap",
"to_json": "to_json",
"to_pretty_json": "to_pretty_json",
"to_s": "to_s",
"to_yaml": "to_yaml",
"try": "try",
"object_id": 42_u64,
"same?": false,
)
EmptyDouble.new([
Spectator::ValueStub.new(:"!=", "!="),
Spectator::ValueStub.new(:"!~", "!~"),
Spectator::ValueStub.new(:"==", "=="),
Spectator::ValueStub.new(:"===", "==="),
Spectator::ValueStub.new(:"=~", "=~"),
Spectator::ValueStub.new(:class, "class"),
Spectator::ValueStub.new(:dup, "dup"),
Spectator::ValueStub.new(:hash, "hash"),
Spectator::ValueStub.new(:"in?", true),
Spectator::ValueStub.new(:inspect, "inspect"),
Spectator::ValueStub.new(:itself, "itself"),
Spectator::ValueStub.new(:"not_nil!", "not_nil!"),
Spectator::ValueStub.new(:pretty_inspect, "pretty_inspect"),
Spectator::ValueStub.new(:tap, "tap"),
Spectator::ValueStub.new(:to_json, "to_json"),
Spectator::ValueStub.new(:to_pretty_json, "to_pretty_json"),
Spectator::ValueStub.new(:to_s, "to_s"),
Spectator::ValueStub.new(:to_yaml, "to_yaml"),
Spectator::ValueStub.new(:try, "try"),
Spectator::ValueStub.new(:object_id, 42_u64),
Spectator::ValueStub.new(:"same?", false),
] of Spectator::Stub)
end
it "responds with defined messages" do
@ -103,42 +112,42 @@ Spectator.describe Spectator::Double do
end
context "without common object methods" do
subject(dbl) { Spectator::Double.new }
subject(dbl) { EmptyDouble.new }
it "raises with undefined messages" do
io = IO::Memory.new
pp = PrettyPrint.new(io)
aggregate_failures do
expect { dbl.!=(42) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.!~(42) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.==(42) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.===(42) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.=~(42) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.class }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.dup }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.hash(42) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.hash }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.in?(42) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.in?(1, 2, 3) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.inspect }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.itself }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.not_nil! }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.pretty_inspect }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.pretty_inspect(io) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.pretty_print(pp) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.tap { nil } }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.to_json }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.to_json(io) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.to_pretty_json }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.to_pretty_json(io) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.to_s }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.to_s(io) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.to_yaml }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.to_yaml(io) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.try { nil } }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.object_id }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.same?(dbl) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.same?(nil) }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.!=(42) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.!~(42) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.==(42) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.===(42) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.=~(42) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.class }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.dup }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.hash(42) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.hash }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.in?(42) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.in?(1, 2, 3) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.inspect }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.itself }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.not_nil! }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.pretty_inspect }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.pretty_inspect(io) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.pretty_print(pp) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.tap { nil } }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.to_json }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.to_json(io) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.to_pretty_json }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.to_pretty_json(io) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.to_s }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.to_s(io) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.to_yaml }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.to_yaml(io) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.try { nil } }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.object_id }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.same?(dbl) }.to raise_error(Spectator::UnexpectedMessage)
expect { dbl.same?(nil) }.to raise_error(Spectator::UnexpectedMessage)
end
end
@ -149,8 +158,14 @@ Spectator.describe Spectator::Double do
context "with arguments constraints" do
let(arguments) { Spectator::Arguments.capture(/foo/) }
context "without common object methods" do
Spectator::Double.define(TestDouble) do
abstract_stub abstract def foo(value) : String
end
let(stub) { Spectator::ValueStub.new(:foo, "bar", arguments).as(Spectator::Stub) }
subject(dbl) { Spectator::Double({foo: String}).new([stub]) }
subject(dbl) { TestDouble.new([stub]) }
it "returns the response when constraint satisfied" do
expect(dbl.foo("foobar")).to eq("bar")
@ -167,17 +182,22 @@ Spectator.describe Spectator::Double do
it "has a non-union return type" do
expect(dbl.foo("foobar")).to compile_as(String)
end
end
context "with common object methods" do
Spectator::Double.define(TestDouble) do
stub abstract def same?(other : Reference) : Bool
end
let(stub) { Spectator::ValueStub.new(:"same?", true, arguments).as(Spectator::Stub) }
subject(dbl) { Spectator::Double({"same?": Bool}).new([stub]) }
subject(dbl) { TestDouble.new([stub]) }
it "returns the response when constraint satisfied" do
expect(dbl.same?("foobar")).to eq(true)
end
it "raises an error when constraint unsatisfied" do
expect { dbl.same?("baz") }.to raise_error(Spectator::UnexpectedMessage, /mask/)
expect { dbl.same?("baz") }.to raise_error(Spectator::UnexpectedMessage)
end
it "raises an error when argument count doesn't match" do