1 files changed, 47 insertions, 0 deletions
diff --git a/Library/Homebrew/test/cmd/help_spec.rb b/Library/Homebrew/test/cmd/help_spec.rb
new file mode 100644
index 000000000..6d94d7444
--- /dev/null
+++ b/Library/Homebrew/test/cmd/help_spec.rb
@@ -0,0 +1,47 @@
+describe "brew", :integration_test do
+  it "prints help when no argument is given" do
+    expect { brew }
+      .to output(/Example usage:\n/).to_stderr
+      .and be_a_failure
+  end
+
+  describe "help" do
+    it "prints help" do
+      expect { brew "help" }
+        .to output(/Example usage:\n/).to_stdout
+        .and be_a_success
+    end
+
+    it "prints help for a documented Ruby command" do
+      expect { brew "help", "cat" }
+        .to output(/^brew cat/).to_stdout
+        .and be_a_success
+    end
+
+    it "prints help for a documented shell command" do
+      expect { brew "help", "update" }
+        .to output(/^brew update/).to_stdout
+        .and be_a_success
+    end
+
+    it "prints help for a documented Ruby developer command" do
+      expect { brew "help", "update-test" }
+        .to output(/^brew update-test/).to_stdout
+        .and be_a_success
+    end
+
+    it "fails when given an unknown command" do
+      expect { brew "help", "command-that-does-not-exist" }
+        .to output(/Unknown command: command-that-does-not-exist/).to_stderr
+        .and be_a_failure
+    end
+  end
+
+  describe "cat" do
+    it "prints help when no argument is given" do
+      expect { brew "cat" }
+        .to output(/^brew cat/).to_stderr
+        .and be_a_failure
+    end
+  end
+end