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environment_test.go
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environment_test.go
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package packit_test
import (
"testing"
"github.com/paketo-buildpacks/packit"
"github.com/sclevine/spec"
. "github.com/onsi/gomega"
)
func testEnvironment(t *testing.T, context spec.G, it spec.S) {
var (
Expect = NewWithT(t).Expect
environment = packit.Environment{}
)
context("Override", func() {
it("modifies the environment object with override values", func() {
environment.Override("SOME_NAME", "some-value")
Expect(environment).To(Equal(packit.Environment{
"SOME_NAME.override": "some-value",
}))
})
context("when called multiple times", func() {
it("overwrites the previous invocation", func() {
environment.Override("SOME_NAME", "some-value")
environment.Override("SOME_NAME", "some-other-value")
Expect(environment).To(Equal(packit.Environment{
"SOME_NAME.override": "some-other-value",
}))
})
})
})
context("Prepend", func() {
it("modifies the environment object with prepend values", func() {
environment.Prepend("SOME_NAME", "some-value", "|")
Expect(environment).To(Equal(packit.Environment{
"SOME_NAME.prepend": "some-value",
"SOME_NAME.delim": "|",
}))
})
context("when called multiple times", func() {
it("overwrites the previous invocation", func() {
environment.Prepend("SOME_NAME", "some-value", "|")
environment.Prepend("SOME_NAME", "other-value", "&")
Expect(environment).To(Equal(packit.Environment{
"SOME_NAME.prepend": "other-value",
"SOME_NAME.delim": "&",
}))
})
context("when the delimiter is empty", func() {
it("does not include a .delim variable", func() {
environment.Prepend("SOME_NAME", "some-value", "|")
environment.Prepend("SOME_NAME", "other-value", "")
Expect(environment).To(Equal(packit.Environment{
"SOME_NAME.prepend": "other-value",
}))
})
})
})
context("when the delimiter is empty", func() {
it("does not include a .delim variable", func() {
environment.Prepend("SOME_NAME", "some-value", "")
Expect(environment).To(Equal(packit.Environment{
"SOME_NAME.prepend": "some-value",
}))
})
})
})
context("Append", func() {
it("modifies an existing environment var with append values", func() {
environment.Append("SOME_NAME", "some-value", ";")
Expect(environment).To(Equal(packit.Environment{
"SOME_NAME.append": "some-value",
"SOME_NAME.delim": ";",
}))
})
context("when called multiple times", func() {
it("overwrites the previous invocation", func() {
environment.Append("SOME_NAME", "some-value", ";")
environment.Append("SOME_NAME", "other-value", "&")
Expect(environment).To(Equal(packit.Environment{
"SOME_NAME.append": "other-value",
"SOME_NAME.delim": "&",
}))
})
context("when the delimiter is empty", func() {
it("does not include a .delim variable", func() {
environment.Append("SOME_NAME", "some-value", ";")
environment.Append("SOME_NAME", "other-value", "")
Expect(environment).To(Equal(packit.Environment{
"SOME_NAME.append": "other-value",
}))
})
})
})
context("when the delimiter is empty", func() {
it("does not include a .delim variable", func() {
environment.Append("SOME_NAME", "some-value", "")
Expect(environment).To(Equal(packit.Environment{
"SOME_NAME.append": "some-value",
}))
})
})
})
context("Default", func() {
it("modifies the environment object with default values", func() {
environment.Default("SOME_NAME", "some-default-value")
Expect(environment).To(Equal(packit.Environment{
"SOME_NAME.default": "some-default-value",
}))
})
context("when called multiple times", func() {
it("overwrites the previous invocation", func() {
environment.Default("SOME_NAME", "some-default-value")
environment.Default("SOME_NAME", "other-default-value")
Expect(environment).To(Equal(packit.Environment{
"SOME_NAME.default": "other-default-value",
}))
})
})
})
}