Add very basic matchers spec

opal · Oct 27, 2013 · c01f6ad · c01f6ad
1 parent 7bea4d0
commit c01f6ad
Showing 1 changed file with 91 additions and 0 deletions.
diff --git a/spec/matchers_spec.rb b/spec/matchers_spec.rb
@@ -0,0 +1,91 @@
+describe "be_truthy" do
+  it "passes with truthy values" do
+    expect(true).to be_truthy
+    expect(1.0).to be_truthy
+    expect([]).to be_truthy
+  end
+
+  it "fails with falsey values" do
+    expect {
+      expect(false).to be_truthy
+    }.to raise_error(Exception)
+
+    expect {
+      expect(nil).to be_truthy
+    }.to raise_error(Exception)
+  end
+end
+
+describe "be_falsey" do
+  it "passes with falsey values" do
+    expect(false).to be_falsey
+    expect(nil).to be_falsey
+  end
+
+  it "fails with truthy values" do
+    expect {
+      expect(true).to be_falsey
+    }.to raise_error(Exception)
+
+    expect {
+      expect({}).to be_falsey
+    }.to raise_error(Exception)
+  end
+end
+
+describe "be_nil" do
+  it "passes when object is nil" do
+    expect(nil).to be_nil
+  end
+
+  it "fails with any other object" do
+    expect {
+      expect(false).to be_nil
+    }.to raise_error(Exception)
+
+    expect {
+      expect(:foo).to be_nil
+    }.to raise_error(Exception)
+  end
+end
+
+describe "eq" do
+  it "matches when actual == expected" do
+    expect(:foo).to eq(:foo)
+  end
+
+  it "does not match when actual != expected" do
+    expect(:foo).not_to eq(42)
+  end
+
+  it "fails if matcher does not match" do
+    expect {
+      expect(:foo).to eq(42)
+    }.to raise_error(Exception)
+
+    expect {
+      expect(:foo).not_to eq(:foo)
+    }.to raise_error(Exception)
+  end
+end
+
+describe "be_kind_of" do
+  it "passes if actual is kind of expected class" do
+    expect("foo").to be_kind_of(String)
+    expect("foo").to_not be_kind_of(Numeric)
+  end
+
+  it "passes if actual is kind of superclass of expected class" do
+    expect([]).to be_kind_of(Object)
+  end
+
+  it "fails if expected is not a kind of expected" do
+    expect {
+      expect("foo").to be_kind_of(Integer)
+    }.to raise_error(Exception)
+
+    expect {
+      expect("foo").to_not be_kind_of(String)
+    }.to raise_error(Exception)
+  end
+end