From f1ce914b73f9c778d6a5ca6b5c5b76613fdc8d21 Mon Sep 17 00:00:00 2001
From: Michael Miller <icy.arctic.fox@gmail.com>
Date: Sat, 2 Apr 2022 12:07:30 -0600
Subject: [PATCH] Better stub DSL tests

---
 spec/spectator/dsl/mocks/stub_spec.cr | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/spec/spectator/dsl/mocks/stub_spec.cr b/spec/spectator/dsl/mocks/stub_spec.cr
index 250b705..586a1b9 100644
--- a/spec/spectator/dsl/mocks/stub_spec.cr
+++ b/spec/spectator/dsl/mocks/stub_spec.cr
@@ -1,11 +1,30 @@
 require "../../../spec_helper"
 
 Spectator.describe "Stub DSL" do
-  double(:foobar, foo: 42, bar: "baz")
+  double(:foobar, foo: 42, bar: "baz") do
+    stub abstract def other : String
+    stub abstract def null : Nil
+  end
+
   let(dbl) { double(:foobar) }
 
-  specify do
+  it "overrides default stubs" do
     allow(dbl).to receive(:foo).and_return(123)
     expect(dbl.foo).to eq(123)
   end
+
+  it "overrides abstract stubs" do
+    allow(dbl).to receive(:other).and_return("test")
+    expect(dbl.other).to eq("test")
+  end
+
+  it "returns nil by default" do
+    allow(dbl).to receive(:null)
+    expect(dbl.null).to be_nil
+  end
+
+  it "raises on cast errors" do
+    allow(dbl).to receive(:foo).and_return(:xyz)
+    expect { dbl.foo }.to raise_error(TypeCastError, /Int32/)
+  end
 end