1 files changed, 34 insertions, 0 deletions
diff --git a/Library/Homebrew/test/cmd/switch_spec.rb b/Library/Homebrew/test/cmd/switch_spec.rb
new file mode 100644
index 000000000..c27c96c14
--- /dev/null
+++ b/Library/Homebrew/test/cmd/switch_spec.rb
@@ -0,0 +1,34 @@
+describe "brew switch", :integration_test do
+  it "allows switching between Formula versions" do
+    expect { brew "switch" }
+      .to output(/Usage: brew switch <name> <version>/).to_stderr
+      .and not_to_output.to_stdout
+      .and be_a_failure
+
+    expect { brew "switch", "testball", "0.1" }
+      .to output(/testball not found/).to_stderr
+      .and not_to_output.to_stdout
+      .and be_a_failure
+
+    setup_test_formula "testball", <<-EOS.undent
+      keg_only "just because"
+    EOS
+
+    shutup do
+      expect { brew "install", "testball" }.to be_a_success
+    end
+
+    testball_rack = HOMEBREW_CELLAR/"testball"
+    FileUtils.cp_r testball_rack/"0.1", testball_rack/"0.2"
+
+    expect { brew "switch", "testball", "0.2" }
+      .to output(/link created/).to_stdout
+      .and not_to_output.to_stderr
+      .and be_a_success
+
+    expect { brew "switch", "testball", "0.3" }
+      .to output("Versions available: 0.1, 0.2\n").to_stdout
+      .and output(/testball does not have a version "0.3"/).to_stderr
+      .and be_a_failure
+  end
+end