intake/core/execute_test.go

package core

import (
	"testing"
	"time"
)

func TestExecute(t *testing.T) {
	assertLen := func(items []Item, length int) {
		t.Helper()
		if len(items) != length {
			t.Fatalf("Expected %d items, got %d", length, len(items))
		}
	}
	assertNil := func(err error) {
		t.Helper()
		if err != nil {
			t.Fatal(err)
		}
	}
	assertNotNil := func(err error) {
		t.Helper()
		if err == nil {
			t.Fatal("expected err")
		}
	}
	execute := func(argv []string) ([]Item, error) {
		item, _, err := Execute("_", argv, nil, nil, "", time.Minute, nil)
		return item, err
	}

	res, err := execute([]string{"true"})
	assertNil(err)
	assertLen(res, 0)

	// Exit with error code
	res, err = execute([]string{"false"})
	assertNotNil(err)
	assertLen(res, 0)

	res, err = execute([]string{"sh", "-c", "exit 22"})
	assertNotNil(err)
	assertLen(res, 0)

	// Timeout
	res, _, err = Execute("_", []string{"sleep", "10"}, nil, nil, "", time.Millisecond, nil)
	assertNotNil(err)
	assertLen(res, 0)

	// Returning items
	res, err = execute([]string{"jq", "-cn", `{id: "foo"}`})
	assertNil(err)
	assertLen(res, 1)
	if res[0].Id != "foo" {
		t.Fatal("jq -cn test failed")
	}

	// Read from stdin
	res, _, err = Execute("_", []string{"jq", "-cR", `{id: .}`}, nil, nil, "bar", time.Minute, nil)
	assertNil(err)
	assertLen(res, 1)
	if res[0].Id != "bar" {
		t.Fatal("jq -cR test failed")
	}

	// Set env
	res, _, err = Execute("_", []string{"jq", "-cn", `{id: env.HELLO}`}, []string{"HELLO=baz"}, nil, "", time.Minute, nil)
	assertNil(err)
	assertLen(res, 1)
	if res[0].Id != "baz" {
		t.Fatal("jq -cn env test failed")
	}

	// With logging on stderr
	res, err = execute([]string{"sh", "-c", `echo 1>&2 Hello; jq -cn '{id: "box"}'; echo 1>&2 World`})
	assertNil(err)
	assertLen(res, 1)
	if res[0].Id != "box" {
		t.Fatal("stderr test failed")
	}

	// Unsupported item field is silently discarded
	res, err = execute([]string{"jq", "-cn", `{id: "test", unknownField: "what is this"}`})
	assertNil(err)
	assertLen(res, 1)

	// Field with incorrect type fails
	res, err = execute([]string{"jq", "-cn", `{id: ["list"]}`})
	assertNotNil(err)
	assertLen(res, 0)

	res, err = execute([]string{"jq", "-cn", `{id: "test", time: "0"}`})
	assertNotNil(err)
	assertLen(res, 0)

	res, err = execute([]string{"jq", "-cn", `{id: null}`})
	assertNotNil(err)
	assertLen(res, 0)

	// Items with duplicate ids is not a fetch error, but it will fail to update
	res, err = execute([]string{"jq", "-cn", `["a", "a"] | .[] | {id: .}`})
	assertNil(err)
	assertLen(res, 2)

	// Action keys are detected even with empty values
	res, err = execute([]string{"jq", "-cn", `{id: "test", action: {"hello": null}}`})
	assertNil(err)
	assertLen(res, 1)
	if res[0].Action["hello"] == nil {
		t.Fatal("missing hello action")
	}
	if res[0].Action["goodbye"] != nil {
		t.Fatal("nonexistent action should key to nil in Action")
	}

	res, err = execute([]string{"jq", "-cn", `{id: "test", action: {"hello": ""}}`})
	assertNil(err)
	assertLen(res, 1)
	if res[0].Action["hello"] == nil {
		t.Fatal("missing hello action")
	}

	res, err = execute([]string{"jq", "-cn", `{id: "test", action: {"hello": []}}`})
	assertNil(err)
	assertLen(res, 1)
	if res[0].Action["hello"] == nil {
		t.Fatal("missing hello action")
	}

	res, err = execute([]string{"jq", "-cn", `{id: "test", action: {"hello": {}}}`})
	assertNil(err)
	assertLen(res, 1)
	if res[0].Action["hello"] == nil {
		t.Fatal("missing hello action")
	}

	// Read state
	argv := []string{"sh", "-c", `cat $STATE_PATH | jq -cR '{id: "greeting", title: .} | .title = "Hello " + .title'`}
	res, _, err = Execute("_", argv, nil, []byte("world"), "", time.Minute, nil)
	assertNil(err)
	assertLen(res, 1)
	if res[0].Title != "Hello world" {
		t.Fatalf("expected 'Hello world' from read state, got '%s'", res[0].Title)
	}

	// Write state
	argv = []string{"sh", "-c", `printf "Hello world" > $STATE_PATH; jq -cn '{id: "test"}'`}
	res, newState, err := Execute("_", argv, nil, nil, "", time.Minute, nil)
	assertNil(err)
	assertLen(res, 1)
	if string(newState) != "Hello world" {
		t.Fatalf("expected 'Hello world' from write state, got %s", string(newState))
	}

	// Postprocessing function
	argv = []string{"jq", "-cn", `{id: "foo"}`}
	res, _, err = Execute("_", argv, nil, nil, "", time.Minute, func(item Item) Item {
		item.Ttl = 123456
		return item
	})
	assertNil(err)
	assertLen(res, 1)
	if res[0].Ttl != 123456 {
		t.Fatalf("expected ttl to be set to 123456, got %d", res[0].Ttl)
	}
}