Tests for plugin install

Ref #201

pkg/fish-spec/functions/assert.expand_operator.fish

@@ -2,6 +2,8 @@ function assert.expand_operator -a operator
   switch $operator
     case =
       echo equals
+    case -n
+      echo not empty
     case \-z
       echo empty
     case \*

pkg/omf/spec/basic_spec.fish

@@ -12,11 +12,4 @@ function describe_basic_tests
     set -l output (omf doctor)
     assert 0 = $status
   end
-
-  function it_install_packages
-    set -l remove_output  (omf remove apt ^/dev/null)
-    set -l install_output (omf install apt)
-
-    assert 0 = $status
-  end
 end

pkg/omf/spec/plugin_install_spec.fish

+function describe_plugin_install
+  function before_all
+    set -gx CI WORKAROUND
+  end
+
+  function before_each
+    rm -rf $OMF_PATH/pkg/omf-test-plugin-* ^/dev/null
+    cp $OMF_CONFIG/bundle $OMF_CONFIG/bundle.fish-spec
+  end
+
+  function after_each
+    rm -rf $OMF_PATH/pkg/omf-test-plugin-* ^/dev/null
+    cp $OMF_CONFIG/bundle.fish-spec $OMF_CONFIG/bundle
+  end
+
+  function after_all
+    rm -rf $OMF_PATH/db/pkg/omf-test-plugin-*
+  end
+
+  function it_installs_plugins_from_the_bundle_file_when_called_with_no_arguments
+    echo package (plugin) > $OMF_CONFIG/bundle
+
+    set -l output (omf install 2>&1 | grep "omf-test-plugin-valid")
+    assert -n "$output"
+  end
+
+  function it_returns_success_if_a_plugin_is_installed
+    omf install (plugin) >/dev/null
+    assert 0 = $status
+  end
+
+  function it_prints_a_success_message_if_a_plugin_is_installed
+    set -l output (omf install (plugin) | grep "successfully installed")
+    assert -n "$output"
+  end
+
+  #function it_returns_an_error_if_a_plugin_fails_to_install
+    #omf install (invalid_plugin) >/dev/null 2>&1
+    #assert 1 = $status
+  #end
+
+  function it_prints_an_error_message_if_a_plugin_fails_to_install
+    set -l output (omf install (invalid_plugin) 2>&1 | grep "Could not install package")
+    assert -n "$output"
+  end
+
+  function it_returns_success_if_a_plugin_and_its_dependencies_are_installed
+    omf install (plugin_with_dependent_plugin) >/dev/null
+    assert 0 = $status
+  end
+
+  function it_prints_a_success_message_if_a_plugin_and_its_dependencies_are_installed
+    set -l count (omf install (plugin_with_dependent_plugin) | grep -o "successfully installed" | wc -l | bc)
+    assert 2 = $count
+  end
+
+  ### Factories ###
+
+  function plugin
+    cp $OMF_PATH/db/pkg/basename-compat $OMF_PATH/db/pkg/omf-test-plugin-valid
+    echo 'omf-test-plugin-valid'
+  end
+
+  function invalid_plugin
+    echo 'omf-test-plugin-invalid'
+  end
+
+  function plugin_with_dependent_plugin
+    omf remove foreign-env 2>&1 >/dev/null #Temporary workaround until we have offline install
+
+    cp $OMF_PATH/db/pkg/nvm $OMF_PATH/db/pkg/omf-test-plugin-with-dependent
+    echo 'omf-test-plugin-with-dependent'
+  end
+end