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Increase data directory test coverage
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*  Adds retro-coverage for #4361
*  Verifies open issues #4138, #3890, #4366, 4083
*  Removes test reliance on the very code it is testing (hugo/parser package).
   Expected results are now all built manually / are more precise.
   Tests can run against different versions (no linkage errs)
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@vassudanagunta @bep
vassudanagunta authored and bep committed Feb 2, 2018
1 parent 19e26cb commit 4743de0
Showing 1 changed file with 302 additions and 16 deletions.
318 changes: 302 additions & 16 deletions hugolib/datafiles_test.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -26,8 +26,9 @@ import (
"github.com/gohugoio/hugo/deps"
jww "github.com/spf13/jwalterweatherman"

"github.com/gohugoio/hugo/parser"
"fmt"
"github.com/stretchr/testify/require"
"runtime"
)

func TestDataDirJSON(t *testing.T) {
Expand All @@ -38,12 +39,41 @@ func TestDataDirJSON(t *testing.T) {
{filepath.FromSlash("data/test.json"), `{ "hello": [ { "world": "foo" } ] }`},
}

expected, err := parser.HandleJSONMetaData([]byte(`{ "test": { "hello": [{ "world": "foo" }] , "foo": { "bar":"foofoo" } } }`))
expected :=
map[string]interface{}{
"test": map[string]interface{}{
"hello": []interface{}{
map[string]interface{}{"world": "foo"},
},
"foo": map[string]interface{}{
"bar": "foofoo",
},
},
}

if err != nil {
t.Fatalf("Error %s", err)
doTestDataDir(t, expected, sources)
}

// TODO Issue #4083, #4138 unresolved
func TestDataDirYAML(t *testing.T) {
t.Parallel()

sources := [][2]string{
{"data/test/a.yaml", "b:\n c1: 1\n c2: 2"},
}

expected :=
map[string]interface{}{
"test": map[string]interface{}{
"a": map[string]interface{}{
"b": map[interface{}]interface{}{
"c1": 1,
"c2": 2,
},
},
},
}

doTestDataDir(t, expected, sources)
}

Expand All @@ -54,12 +84,103 @@ func TestDataDirToml(t *testing.T) {
{"data/test/kung.toml", "[foo]\nbar = 1"},
}

expected, err := parser.HandleTOMLMetaData([]byte("[test]\n[test.kung]\n[test.kung.foo]\nbar = 1"))
expected :=
map[string]interface{}{
"test": map[string]interface{}{
"kung": map[string]interface{}{
"foo": map[string]interface{}{
"bar": 1,
},
},
},
}

doTestDataDir(t, expected, sources)
}

// TODO Issue #4138 unresolved
func TestDataDirYAML2(t *testing.T) {
t.Parallel()

sources := [][2]string{
{filepath.FromSlash("data/test/foo.yaml"), "bar: foofoo"},
{filepath.FromSlash("data/test.yaml"), "hello:\n- world: foo"},
}

//This is what we want: consistent use of map[string]interface{} for nested YAML maps
// the same as TestDataDirJSON
expected :=
map[string]interface{}{
"test": map[string]interface{}{
"hello": []interface{}{
map[string]interface{}{"world": "foo"},
},
"foo": map[string]interface{}{
"bar": "foofoo",
},
},
}

// what we are actually getting as of v0.34
expectedV0_34 :=
map[string]interface{}{
"test": map[string]interface{}{
"hello": []interface{}{
map[interface{}]interface{}{"world": "foo"},
},
"foo": map[string]interface{}{
"bar": "foofoo",
},
},
}
_ = expected

doTestDataDir(t, expectedV0_34, sources)
}

func TestDataDirToml2(t *testing.T) {
t.Parallel()

sources := [][2]string{
{filepath.FromSlash("data/test/foo.toml"), "bar = \"foofoo\""},
{filepath.FromSlash("data/test.toml"), "[[hello]]\nworld = \"foo\""},
}

expected :=
map[string]interface{}{
"test": map[string]interface{}{
"hello": []map[string]interface{}{
map[string]interface{}{"world": "foo"},
},
"foo": map[string]interface{}{
"bar": "foofoo",
},
},
}

doTestDataDir(t, expected, sources)
}

if err != nil {
t.Fatalf("Error %s", err)
func TestDataDirJSONWithOverriddenValue(t *testing.T) {
t.Parallel()

sources := [][2]string{
// filepath.Walk walks the files in lexical order, '/' comes before '.'. Simulate this:
{filepath.FromSlash("data/a.json"), `{"a": "1"}`},
{filepath.FromSlash("data/test/v1.json"), `{"v1-2": "2"}`},
{filepath.FromSlash("data/test/v2.json"), `{"v2": ["2", "3"]}`},
{filepath.FromSlash("data/test.json"), `{"v1": "1"}`},
}

expected :=
map[string]interface{}{
"a": map[string]interface{}{"a": "1"},
"test": map[string]interface{}{
"v1": map[string]interface{}{"v1-2": "2"},
"v2": map[string]interface{}{"v2": []interface{}{"2", "3"}},
},
}

doTestDataDir(t, expected, sources)
}

Expand All @@ -74,29 +195,175 @@ func TestDataDirYAMLWithOverridenValue(t *testing.T) {
{filepath.FromSlash("data/test.yaml"), "v1: 1"},
}

expected := map[string]interface{}{"a": map[string]interface{}{"a": 1},
"test": map[string]interface{}{"v1": map[string]interface{}{"v1-2": 2}, "v2": map[string]interface{}{"v2": []interface{}{2, 3}}}}
expected :=
map[string]interface{}{
"a": map[string]interface{}{"a": 1},
"test": map[string]interface{}{
"v1": map[string]interface{}{"v1-2": 2},
"v2": map[string]interface{}{"v2": []interface{}{2, 3}},
},
}

doTestDataDir(t, expected, sources)
}

// issue 892
// Issue #4361
func TestDataDirJSONArrayAtTopLevelOfFile(t *testing.T) {
t.Parallel()

sources := [][2]string{
{filepath.FromSlash("data/test.json"), `[ { "hello": "world" }, { "what": "time" }, { "is": "lunch?" } ]`},
}

expected :=
map[string]interface{}{
"test": []interface{}{
map[string]interface{}{"hello": "world"},
map[string]interface{}{"what": "time"},
map[string]interface{}{"is": "lunch?"},
},
}

doTestDataDir(t, expected, sources)
}

// TODO Issue #3890 unresolved
func TestDataDirYAMLArrayAtTopLevelOfFile(t *testing.T) {
t.Parallel()

sources := [][2]string{
{filepath.FromSlash("data/test.yaml"), `
- hello: world
- what: time
- is: lunch?
`},
}

//TODO decide whether desired structure map[interface {}]interface{} as shown
// and as the YAML parser produces, or should it be map[string]interface{}
// all the way down per Issue #4138
expected :=
map[string]interface{}{
"test": []interface{}{
map[interface{}]interface{}{"hello": "world"},
map[interface{}]interface{}{"what": "time"},
map[interface{}]interface{}{"is": "lunch?"},
},
}

// what we are actually getting as of v0.34
expectedV0_34 :=
map[string]interface{}{}
_ = expected

doTestDataDir(t, expectedV0_34, sources)
}

// Issue #892
func TestDataDirMultipleSources(t *testing.T) {
t.Parallel()

sources := [][2]string{
{filepath.FromSlash("data/test/first.toml"), "bar = 1"},
{filepath.FromSlash("themes/mytheme/data/test/first.toml"), "bar = 2"},
{filepath.FromSlash("data/test/second.toml"), "tender = 2"},
{filepath.FromSlash("data/test/first.yaml"), "bar: 1"},
{filepath.FromSlash("themes/mytheme/data/test/first.yaml"), "bar: 2"},
{filepath.FromSlash("data/test/second.yaml"), "tender: 2"},
}

expected, _ := parser.HandleTOMLMetaData([]byte("[test.first]\nbar = 1\n[test.second]\ntender=2"))
expected :=
map[string]interface{}{
"test": map[string]interface{}{
"first": map[string]interface{}{
"bar": 1,
},
"second": map[string]interface{}{
"tender": 2,
},
},
}

doTestDataDir(t, expected, sources,
"theme", "mytheme")

}

// test (and show) the way values from four different sources commingle and override
func TestDataDirMultipleSourcesCommingled(t *testing.T) {
t.Parallel()

sources := [][2]string{
{filepath.FromSlash("data/a.json"), `{ "b1" : { "c1": "data/a" }, "b2": "data/a", "b3": ["x", "y", "z"] }`},
{filepath.FromSlash("themes/mytheme/data/a.json"), `{ "b1": "mytheme/data/a", "b2": "mytheme/data/a", "b3": "mytheme/data/a" }`},
{filepath.FromSlash("themes/mytheme/data/a/b1.json"), `{ "c1": "mytheme/data/a/b1", "c2": "mytheme/data/a/b1" }`},
{filepath.FromSlash("data/a/b1.json"), `{ "c1": "data/a/b1" }`},
}

// Per handleDataFile() comment:
// 1. A theme uses the same key; the main data folder wins
// 2. A sub folder uses the same key: the sub folder wins
expected :=
map[string]interface{}{
"a": map[string]interface{}{
"b1": map[string]interface{}{
"c1": "data/a/b1",
"c2": "mytheme/data/a/b1",
},
"b2": "data/a",
"b3": []interface{}{"x", "y", "z"},
},
}

doTestDataDir(t, expected, sources,
"theme", "mytheme")
}

func TestDataDirMultipleSourcesCollidingChildArrays(t *testing.T) {
t.Parallel()

sources := [][2]string{
{filepath.FromSlash("data/a.json"), `{ "b1" : "data/a", "b2" : ["x", "y", "z"] }`},
{filepath.FromSlash("data/a/b2.json"), `["1", "2", "3"]`},
}

// Per handleDataFile() comment:
// 1. A theme uses the same key; the main data folder wins
// 2. A sub folder uses the same key: the sub folder wins
expected :=
map[string]interface{}{
"a": map[string]interface{}{
"b1": "data/a",
"b2": []interface{}{"1", "2", "3"},
},
}

doTestDataDir(t, expected, sources,
"theme", "mytheme")
}

// TODO Issue #4366 unresolved
func TestDataDirMultipleSourcesCollidingTopLevelArrays(t *testing.T) {
t.Parallel()

sources := [][2]string{
{filepath.FromSlash("themes/mytheme/data/a/b1.json"), `["x", "y", "z"]`},
{filepath.FromSlash("data/a/b1.json"), `["1", "2", "3"]`},
}

expected :=
map[string]interface{}{
"a": map[string]interface{}{
"b1": []interface{}{"1", "2", "3"},
},
}

// as of v0.34 this test results in a go Panic
_ = sources
_ = expected
/*
doTestDataDir(t, expectedV0_35, sources,
"theme", "mytheme")
*/
}

func doTestDataDir(t *testing.T, expected interface{}, sources [][2]string, configKeyValues ...interface{}) {
var (
cfg, fs = newTestCfg()
Expand All @@ -107,7 +374,7 @@ func doTestDataDir(t *testing.T, expected interface{}, sources [][2]string, conf
}

var (
logger = jww.NewNotepad(jww.LevelError, jww.LevelError, os.Stdout, ioutil.Discard, "", log.Ldate|log.Ltime)
logger = jww.NewNotepad(jww.LevelWarn, jww.LevelWarn, os.Stdout, ioutil.Discard, t.Name(), log.Ldate|log.Ltime)
depsCfg = deps.DepsCfg{Fs: fs, Cfg: cfg, Logger: logger}
)

Expand All @@ -120,10 +387,29 @@ func doTestDataDir(t *testing.T, expected interface{}, sources [][2]string, conf
expectBuildError = true
}

// trap and report panics as unmarshaling errors so that test suit can complete
defer func() {
if r := recover(); r != nil {
// Capture the stack trace
buf := make([]byte, 10000)
runtime.Stack(buf, false)
t.Errorf("PANIC: %s\n\nStack Trace : %s", r, string(buf))
}
}()

s := buildSingleSiteExpected(t, expectBuildError, depsCfg, BuildCfg{SkipRender: true})

if !expectBuildError && !reflect.DeepEqual(expected, s.Data) {
t.Errorf("Expected structure\n%#v got\n%#v", expected, s.Data)
exp := fmt.Sprintf("%#v", expected)
got := fmt.Sprintf("%#v", s.Data)
if exp == got { //TODO: This workaround seems to be triggered only by the TOML tests
t.Logf("WARNING: reflect.DeepEqual returned FALSE for values that appear equal.\n"+
"Treating as equal for the purpose of the test, but this maybe should be investigated.\n"+
"Expected data:\n%v got\n%v\n\nExpected type structure:\n%#[1]v got\n%#[2]v", expected, s.Data)
return
}

t.Errorf("Expected data:\n%v got\n%v\n\nExpected type structure:\n%#[1]v got\n%#[2]v", expected, s.Data)
}
}

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