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// Copyright 2022 Harald Albrecht.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package enumflag
import (
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
)
var _ = Describe("enum values", func() {
Context("scalars", func() {
It("retrieves the current enum value", func() {
f := fmFoo
es := enumScalar[FooModeTest]{v: &f}
Expect(es.Get()).To(Equal(fmFoo))
})
DescribeTable("stringifies",
func(e FooModeTest, expected string) {
es := enumScalar[FooModeTest]{v: &e}
m := newEnumMapper(FooModeIdentifiersTest, EnumCaseInsensitive)
Expect(es.String(m)).To(Equal(expected))
},
Entry("fmBar", fmBar, "bar"), // sic! returns canonical name, which is "bar"
Entry("unknown", FooModeTest(0), "<unknown>"),
)
It("sets a new enum value", func() {
f := fmFoo
es := enumScalar[FooModeTest]{v: &f}
m := newEnumMapper(FooModeIdentifiersTest, EnumCaseInsensitive)
Expect(es.Set("Bar", m)).To(Succeed())
Expect(es.Get()).To(Equal(fmBar))
})
It("rejects setting an unknown textual representation", func() {
f := fmFoo
es := enumScalar[FooModeTest]{v: &f}
m := newEnumMapper(FooModeIdentifiersTest, EnumCaseInsensitive)
Expect(es.Set("Barumph", m)).NotTo(Succeed())
})
DescribeTable("completion",
func(toc string, expected []string) {
c := (&enumScalar[FooModeTest]{}).NewCompletor(FooModeIdentifiersTest, nil)
actual, _ := c(nil, nil, toc)
Expect(actual).To(ConsistOf(expected))
},
Entry("returns all values", "", []string{"foo", "bar", "Bar", "baz"}),
Entry("always returns all values without filtering", "b", []string{"foo", "bar", "Bar", "baz"}),
)
It("completes with help", func() {
c := (&enumScalar[FooModeTest]{}).NewCompletor(FooModeIdentifiersTest, FooModeHelp)
actual, _ := c(nil, nil, "")
Expect(actual).To(ConsistOf([]string{
"foo\tfoo it",
"bar\tbar IT!",
"Bar\tbar IT!",
"baz\tbaz nit!!",
}))
})
})
Context("slices", func() {
m := newEnumMapper(FooModeIdentifiersTest, EnumCaseInsensitive)
var es enumSlice[FooModeTest]
BeforeEach(func() {
sf := []FooModeTest{fmFoo, fmBar, 0}
es = enumSlice[FooModeTest]{v: &sf}
})
It("retrieves the current enum value", func() {
Expect(es.Get()).To(ConsistOf(fmFoo, fmBar, FooModeTest(0)))
})
It("stringifies", func() {
Expect(es.String(m)).To(Equal("[foo,bar,<unknown>]"))
sf := []FooModeTest{}
es := enumSlice[FooModeTest]{v: &sf}
Expect(es.String(m)).To(Equal("[]"))
})
It("sets a new enum value", func() {
Expect(es.Set("baz", m)).To(Succeed())
Expect(es.Get()).To(ConsistOf(fmBaz))
Expect(es.Set("foo", m)).To(Succeed())
Expect(es.Get()).To(ConsistOf(fmBaz, fmFoo))
Expect(es.Set("Baz", m)).To(Succeed())
Expect(es.Get()).To(ConsistOf(fmBaz, fmFoo))
})
DescribeTable("rejects setting an unknown textual representation",
func(value string) {
Expect(es.Set(value, m)).NotTo(Succeed())
},
Entry(nil, "bajazzo"),
Entry(nil, "foo,bajazzo"),
Entry(`""`, ""),
)
DescribeTable("completion",
func(toc string, expected []string) {
c := (&enumSlice[FooModeTest]{}).NewCompletor(FooModeIdentifiersTest, nil)
actual, _ := c(nil, nil, toc)
Expect(actual).To(ConsistOf(expected))
},
Entry("returns all values", "", []string{"foo", "bar", "Bar", "baz"}),
Entry("always returns all values without filtering", "b",
[]string{"foo", "bar", "Bar", "baz"}),
Entry("returns all remaining values", "f",
[]string{"foo", "bar", "Bar", "baz"}),
Entry(nil, "foo,", []string{"foo,bar", "foo,Bar", "foo,baz"}),
Entry(nil, "foo,bar,", []string{"foo,bar,Bar", "foo,bar,baz"}),
Entry(nil, "bar,baz,f", []string{"bar,baz,foo", "bar,baz,Bar"}),
Entry("ignores non-existing elements", "foo,koo,",
[]string{"foo,koo,bar", "foo,koo,Bar", "foo,koo,baz"}),
)
})
})
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