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script_runner_test.go
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script_runner_test.go
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package miniconda_test
import (
"errors"
"os"
"path/filepath"
"testing"
"github.com/paketo-buildpacks/miniconda"
"github.com/paketo-buildpacks/miniconda/fakes"
"github.com/sclevine/spec"
. "github.com/onsi/gomega"
)
func testScriptRunner(t *testing.T, context spec.G, it spec.S) {
var (
Expect = NewWithT(t).Expect
layersDir string
scriptDir string
scriptPath string
executable *fakes.Executable
scriptRunner miniconda.ScriptRunner
)
it.Before(func() {
var err error
layersDir, err = os.MkdirTemp("", "layers")
Expect(err).NotTo(HaveOccurred())
scriptDir, err = os.MkdirTemp("", "miniconda-script-dir")
Expect(err).NotTo(HaveOccurred())
scriptPath = filepath.Join(scriptDir, "artifact")
err = os.WriteFile(scriptPath, nil, 0644)
Expect(err).NotTo(HaveOccurred())
executable = &fakes.Executable{}
scriptRunner = miniconda.NewScriptRunner(executable)
})
it.After(func() {
Expect(os.RemoveAll(layersDir)).To(Succeed())
Expect(os.RemoveAll(scriptDir)).To(Succeed())
})
context("Run", func() {
it("runs the miniconda install script with the correct flags", func() {
err := scriptRunner.Run(scriptPath, layersDir)
Expect(err).NotTo(HaveOccurred())
Expect(executable.ExecuteCall.Receives.Execution.Args).To(Equal([]string{
filepath.Join(scriptDir, "artifact"),
"-b",
"-f",
"-p", layersDir,
}))
})
context("failure cases", func() {
context("when the script fails", func() {
it.Before(func() {
executable.ExecuteCall.Returns.Error = errors.New("script failed to run")
})
it("returns an error", func() {
err := scriptRunner.Run(scriptPath, layersDir)
Expect(err).To(MatchError("failed while running miniconda install script: script failed to run"))
})
})
})
})
}