tests: add cmd/switch integration test

1 files changed, 17 insertions, 0 deletions

diff --git a/Library/Homebrew/test/test_integration_cmds.rb b/Library/Homebrew/test/test_integration_cmds.rb
index 40f68df6b..40a4dcfd1 100644
--- a/Library/Homebrew/test/test_integration_cmds.rb
+++ b/Library/Homebrew/test/test_integration_cmds.rb
@@ -756,4 +756,21 @@ class IntegrationCommandTests < Homebrew::TestCase
     cmd("analytics", "off")
     assert_match "Analytics is disabled", cmd("analytics")
   end
+
+  def test_switch
+    assert_match "Usage: brew switch <name> <version>", cmd_fail("switch")
+    assert_match "testball not found", cmd_fail("switch", "testball", "0.1")
+
+    setup_test_formula "testball", <<-EOS.undent
+      keg_only "just because"
+    EOS
+
+    cmd("install", "testball")
+    testball_rack = HOMEBREW_CELLAR/"testball"
+    FileUtils.cp_r testball_rack/"0.1", testball_rack/"0.2"
+
+    cmd("switch", "testball", "0.2")
+    assert_match "testball does not have a version \"0.3\"",
+      cmd_fail("switch", "testball", "0.3")
+  end
 end