Make empty excludes string more accurate

Signed-off-by: Nolan Brubaker <[email protected]>

pkg/util/collections/includes_excludes.go

@@ -79,18 +79,18 @@ func (ie *IncludesExcludes) ShouldInclude(s string) bool {
 // IncludesString returns a string containing all of the includes, separated by commas, or * if the
 // list is empty.
 func (ie *IncludesExcludes) IncludesString() string {
-	return asString(ie.GetIncludes())
+	return asString(ie.GetIncludes(), "*")
 }
 
-// ExcludesString returns a string containing all of the excludes, separated by commas, or * if the
+// ExcludesString returns a string containing all of the excludes, separated by commas, or none if the
 // list is empty.
 func (ie *IncludesExcludes) ExcludesString() string {
-	return asString(ie.GetExcludes())
+	return asString(ie.GetExcludes(), "none")
 }
 
-func asString(in []string) string {
+func asString(in []string, empty string) string {
 	if len(in) == 0 {
-		return "*"
+		return empty
 	}
 	return strings.Join(in, ", ")
 }

pkg/util/collections/includes_excludes_test.go

@@ -135,3 +135,36 @@ func TestValidateIncludesExcludes(t *testing.T) {
 		})
 	}
 }
+
+func TestIncludeExcludeString(t *testing.T) {
+	tests := []struct {
+		name             string
+		includes         []string
+		excludes         []string
+		expectedIncludes string
+		expectedExcludes string
+	}{
+		{
+			name:             "unspecified includes/excludes should return '*'/'none'",
+			includes:         nil,
+			excludes:         nil,
+			expectedIncludes: "*",
+			expectedExcludes: "none",
+		},
+		{
+			name:             "specific resources should result in sorted joined string",
+			includes:         []string{"foo", "bar"},
+			excludes:         []string{"baz", "xyz"},
+			expectedIncludes: "bar, foo",
+			expectedExcludes: "baz, xyz",
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			ie := NewIncludesExcludes().Includes(test.includes...).Excludes(test.excludes...)
+			assert.Equal(t, test.expectedIncludes, ie.IncludesString())
+			assert.Equal(t, test.expectedExcludes, ie.ExcludesString())
+		})
+	}
+}