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moby--moby/builder/dockerfile/buildargs_test.go

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package dockerfile // import "github.com/docker/docker/builder/dockerfile"
import (
"bytes"
"strings"
"testing"
"gotest.tools/assert"
is "gotest.tools/assert/cmp"
)
func strPtr(source string) *string {
return &source
}
func TestGetAllAllowed(t *testing.T) {
buildArgs := NewBuildArgs(map[string]*string{
"ArgNotUsedInDockerfile": strPtr("fromopt1"),
"ArgOverriddenByOptions": strPtr("fromopt2"),
"ArgNoDefaultInDockerfileFromOptions": strPtr("fromopt3"),
"HTTP_PROXY": strPtr("theproxy"),
})
buildArgs.AddMetaArg("ArgFromMeta", strPtr("frommeta1"))
buildArgs.AddMetaArg("ArgFromMetaOverridden", strPtr("frommeta2"))
buildArgs.AddMetaArg("ArgFromMetaNotUsed", strPtr("frommeta3"))
buildArgs.AddArg("ArgOverriddenByOptions", strPtr("fromdockerfile2"))
buildArgs.AddArg("ArgWithDefaultInDockerfile", strPtr("fromdockerfile1"))
buildArgs.AddArg("ArgNoDefaultInDockerfile", nil)
buildArgs.AddArg("ArgNoDefaultInDockerfileFromOptions", nil)
buildArgs.AddArg("ArgFromMeta", nil)
buildArgs.AddArg("ArgFromMetaOverridden", strPtr("fromdockerfile3"))
all := buildArgs.GetAllAllowed()
expected := map[string]string{
"HTTP_PROXY": "theproxy",
"ArgOverriddenByOptions": "fromopt2",
"ArgWithDefaultInDockerfile": "fromdockerfile1",
"ArgNoDefaultInDockerfileFromOptions": "fromopt3",
"ArgFromMeta": "frommeta1",
"ArgFromMetaOverridden": "fromdockerfile3",
}
assert.Check(t, is.DeepEqual(expected, all))
}
func TestGetAllMeta(t *testing.T) {
buildArgs := NewBuildArgs(map[string]*string{
"ArgNotUsedInDockerfile": strPtr("fromopt1"),
"ArgOverriddenByOptions": strPtr("fromopt2"),
"ArgNoDefaultInMetaFromOptions": strPtr("fromopt3"),
"HTTP_PROXY": strPtr("theproxy"),
})
buildArgs.AddMetaArg("ArgFromMeta", strPtr("frommeta1"))
buildArgs.AddMetaArg("ArgOverriddenByOptions", strPtr("frommeta2"))
buildArgs.AddMetaArg("ArgNoDefaultInMetaFromOptions", nil)
all := buildArgs.GetAllMeta()
expected := map[string]string{
"HTTP_PROXY": "theproxy",
"ArgFromMeta": "frommeta1",
"ArgOverriddenByOptions": "fromopt2",
"ArgNoDefaultInMetaFromOptions": "fromopt3",
}
assert.Check(t, is.DeepEqual(expected, all))
}
func TestWarnOnUnusedBuildArgs(t *testing.T) {
buildArgs := NewBuildArgs(map[string]*string{
"ThisArgIsUsed": strPtr("fromopt1"),
"ThisArgIsNotUsed": strPtr("fromopt2"),
"HTTPS_PROXY": strPtr("referenced builtin"),
"HTTP_PROXY": strPtr("unreferenced builtin"),
})
buildArgs.AddArg("ThisArgIsUsed", nil)
buildArgs.AddArg("HTTPS_PROXY", nil)
buffer := new(bytes.Buffer)
buildArgs.WarnOnUnusedBuildArgs(buffer)
out := buffer.String()
assert.Assert(t, !strings.Contains(out, "ThisArgIsUsed"), out)
assert.Assert(t, !strings.Contains(out, "HTTPS_PROXY"), out)
assert.Assert(t, !strings.Contains(out, "HTTP_PROXY"), out)
assert.Check(t, is.Contains(out, "ThisArgIsNotUsed"))
}
func TestIsUnreferencedBuiltin(t *testing.T) {
buildArgs := NewBuildArgs(map[string]*string{
"ThisArgIsUsed": strPtr("fromopt1"),
"ThisArgIsNotUsed": strPtr("fromopt2"),
"HTTPS_PROXY": strPtr("referenced builtin"),
"HTTP_PROXY": strPtr("unreferenced builtin"),
})
buildArgs.AddArg("ThisArgIsUsed", nil)
buildArgs.AddArg("HTTPS_PROXY", nil)
assert.Check(t, buildArgs.IsReferencedOrNotBuiltin("ThisArgIsUsed"))
assert.Check(t, buildArgs.IsReferencedOrNotBuiltin("ThisArgIsNotUsed"))
assert.Check(t, buildArgs.IsReferencedOrNotBuiltin("HTTPS_PROXY"))
assert.Check(t, !buildArgs.IsReferencedOrNotBuiltin("HTTP_PROXY"))
}