Files
thor/mustache/pipes_test.odin
T
2026-07-21 14:31:09 -04:00

371 lines
10 KiB
Odin

#+test
package mustache
import "core:fmt"
import "core:testing"
Pipe_Post :: struct {
title: string,
year: string,
}
Pipe_Data :: struct {
posts: []Pipe_Post,
}
make_data :: proc(posts: ..Pipe_Post) -> Pipe_Data {
d: Pipe_Data
d.posts = posts
return d
}
@(test)
test_pipe_group_by_basic :: proc(t: ^testing.T) {
data := make_data(
{title = "A", year = "2024"},
{title = "B", year = "2024"},
{title = "C", year = "2023"},
)
tpl, _ := parse("{{#posts | group_by year}}{{key}}:{{#items}}{{title}},{{/items}};{{/posts}}")
defer delete_template(&tpl)
result, _ := render(tpl, data)
defer delete(result)
testing.expect_value(t, result, "2024:A,B,;2023:C,;")
}
@(test)
test_pipe_group_by_doesnt_sort :: proc(t: ^testing.T) {
data := make_data(
{title = "old", year = "2020"},
{title = "new", year = "2024"},
{title = "mid", year = "2022"},
)
tpl, _ := parse("{{#posts | group_by year}}{{key}} {{/posts}}")
defer delete_template(&tpl)
result, _ := render(tpl, data)
defer delete(result)
testing.expect_value(t, result, "2020 2024 2022 ")
}
@(test)
test_pipe_group_by_empty_list_skips :: proc(t: ^testing.T) {
data := Pipe_Data {
posts = nil,
}
tpl, _ := parse("[{{#posts | group_by year}}{{key}}{{/posts}}]")
defer delete_template(&tpl)
result, _ := render(tpl, data)
defer delete(result)
testing.expect_value(t, result, "[]")
}
@(test)
test_pipe_group_by_missing_field_fails :: proc(t: ^testing.T) {
data := make_data({title = "A", year = "2024"})
tpl, _ := parse("{{#posts | group_by missing}}x{{/posts}}")
defer delete_template(&tpl)
_, err := render(tpl, data)
testing.expect(t, err != nil, "missing field should error")
is_data_err := false
#partial switch e in err {
case Data_Error:
is_data_err = len(e.msg) > 0
}
testing.expect(t, is_data_err, "error should be Data_Error")
}
@(test)
test_pipe_group_by_requires_grouped_field :: proc(t: ^testing.T) {
data := make_data({title = "A", year = ""})
tpl, _ := parse("{{#posts | group_by year}}x{{/posts}}")
defer delete_template(&tpl)
_, err := render(tpl, data)
testing.expect(t, err != nil, "empty field value should error")
}
@(test)
test_group_by_requires_arg :: proc(t: ^testing.T) {
data := make_data({title = "A", year = "2024"})
tpl, _ := parse("{{#posts | group_by}}x{{/posts}}")
defer delete_template(&tpl)
_, err := render(tpl, data)
testing.expect(t, err != nil, "group_by with no args should error")
}
@(test)
test_pipe_group_by_non_list_returns_error :: proc(t: ^testing.T) {
Scalar_Data :: struct {
name: string,
}
data := Scalar_Data {
name = "hello",
}
tpl, _ := parse("{{#name | group_by x}}y{{/name}}")
defer delete_template(&tpl)
_, err := render(tpl, data)
testing.expect(t, err != nil, "group_by on a scalar should error")
}
@(test)
test_pipe_accepts_8_filters :: proc(t: ^testing.T) {
src := "{{#posts | group_by year | group_by year | group_by year | group_by year | group_by year | group_by year | group_by year | group_by year}}x{{/posts}}"
tpl, err := parse(src)
testing.expect(t, err == nil, "8 filters should parse OK")
if err == nil {
defer delete_template(&tpl)
} else {
fmt.printfln("parse error: %v", err)
}
}
@(test)
test_pipe_rejects_nine_filters :: proc(t: ^testing.T) {
src := "{{#posts | group_by y | group_by y | group_by y | group_by y | group_by y | group_by y | group_by y | group_by y | group_by y}}x{{/posts}}"
_, err := parse(src)
testing.expect(t, err != nil, "9 filters should fail to parse")
}
@(test)
test_pipe_forbidden_in_close_tag :: proc(t: ^testing.T) {
src := "{{#posts | group_by year}}x{{/posts | group_by year}}"
_, err := parse(src)
testing.expect(t, err != nil, "pipe in close tag should fail to parse")
}
@(test)
test_pipe_empty_middle_filter_required :: proc(t: ^testing.T) {
src := "{{#posts | | group_by year}}x{{/posts}}"
_, err := parse(src)
testing.expect(t, err != nil, "empty pipe filter should fail to parse")
}
@(test)
test_pipe_filter_required :: proc(t: ^testing.T) {
src := "{{#posts |}}x{{/posts}}"
_, err := parse(src)
testing.expect(t, err != nil, "trailing pipe with no filter should fail")
}
@(test)
test_pipe_data_required :: proc(t: ^testing.T) {
src := "{{#| group_by year}}x{{/}}"
_, err := parse(src)
testing.expect(t, err != nil, "missing key should fail to parse")
}
@(test)
test_extra_whitespace_allowed :: proc(t: ^testing.T) {
data := make_data({title = "A", year = "2024"}, {title = "B", year = "2023"})
tpl, _ := parse("{{#posts|group_by year}}{{key}};{{/posts}}")
defer delete_template(&tpl)
result, _ := render(tpl, data)
defer delete(result)
testing.expect_value(t, result, "2024;2023;")
}
@(test)
test_pipe_no_pipe_still_works :: proc(t: ^testing.T) {
data := make_data({title = "A", year = "2024"}, {title = "B", year = "2023"})
tpl, _ := parse("{{#posts}}{{title}};{{/posts}}")
defer delete_template(&tpl)
result, _ := render(tpl, data)
defer delete(result)
testing.expect_value(t, result, "A;B;")
}
@(test)
test_pipe_inverted_section_empty :: proc(t: ^testing.T) {
data := Pipe_Data {
posts = nil,
}
tpl, _ := parse("{{^posts | group_by year}}none{{/posts}}")
defer delete_template(&tpl)
result, _ := render(tpl, data)
defer delete(result)
testing.expect_value(t, result, "none")
}
@(test)
test_pipe_single_group_works :: proc(t: ^testing.T) {
data := make_data({title = "A", year = "2024"}, {title = "B", year = "2024"})
tpl, _ := parse("{{#posts | group_by year}}{{key}}({{#items}}{{title}}{{/items}}){{/posts}}")
defer delete_template(&tpl)
result, _ := render(tpl, data)
defer delete(result)
testing.expect_value(t, result, "2024(AB)")
}
@(test)
test_delete_template_doesnt_leak :: proc(t: ^testing.T) {
tmpl, err := parse("{{#posts | group_by year}}x{{/posts}}")
testing.expect(t, err == nil)
defer delete_template(&tmpl)
}
// ---------------------------------------------------------------------------
// Interpolation pipes ({{x | op}})
// ---------------------------------------------------------------------------
@(test)
test_interp_pipe_basic :: proc(t: ^testing.T) {
Scalar_Data :: struct {
name: string,
}
data := Scalar_Data {
name = "2026-03-15T08:49:54-04:00",
}
tpl, _ := parse("[{{name | format}}]", context.temp_allocator)
result, _ := render(tpl, data, {}, context.temp_allocator)
testing.expect_value(t, result, "[15 Mar 2026]")
}
@(test)
test_interp_pipe_unescaped :: proc(t: ^testing.T) {
Scalar_Data :: struct {
name: string,
}
data := Scalar_Data {
name = "2025-12-25T00:00:00Z",
}
tpl, _ := parse("[{{&name | format}}]", context.temp_allocator)
result, _ := render(tpl, data, {}, context.temp_allocator)
testing.expect_value(t, result, "[25 Dec 2025]")
}
@(test)
test_interp_pipe_dot_current :: proc(t: ^testing.T) {
List_Data :: struct {
items: [3]string,
}
data := List_Data {
items = {"2026-01-06T00:00:00Z", "2026-06-15T00:00:00Z", "2026-10-15T00:00:00Z"},
}
tpl, _ := parse("{{#items}}[{{. | format}}]{{/items}}", context.temp_allocator)
result, _ := render(tpl, data, {}, context.temp_allocator)
testing.expect_value(t, result, "[6 Jan 2026][15 Jun 2026][15 Oct 2026]")
}
// ---------------------------------------------------------------------------
// format filter
// ---------------------------------------------------------------------------
Format_Data :: struct {
date: string,
}
@(test)
test_format_typical_iso :: proc(t: ^testing.T) {
data := Format_Data {
date = "2026-03-15T08:49:54-04:00",
}
tpl, _ := parse("{{date | format}}", context.temp_allocator)
result, _ := render(tpl, data, {}, context.temp_allocator)
testing.expect_value(t, result, "15 Mar 2026")
}
@(test)
test_format_short_date_only :: proc(t: ^testing.T) {
data := Format_Data {
date = "2026-06-06",
}
tpl, _ := parse("{{date | format}}", context.temp_allocator)
result, _ := render(tpl, data, {}, context.temp_allocator)
testing.expect_value(t, result, "6 Jun 2026")
}
@(test)
test_format_empty_input_errors :: proc(t: ^testing.T) {
data := Format_Data {
date = "",
}
tpl, _ := parse("[{{date | format}}]", context.temp_allocator)
defer delete_template(&tpl)
_, err := render(tpl, data, {}, context.temp_allocator)
testing.expect(t, err != nil, "empty date should error")
}
@(test)
test_format_non_date_string_errors :: proc(t: ^testing.T) {
data := Format_Data {
date = "abc",
}
tpl, _ := parse("[{{date | format}}]", context.temp_allocator)
defer delete_template(&tpl)
_, err := render(tpl, data, {}, context.temp_allocator)
testing.expect(t, err != nil, "non-date string should error")
}
@(test)
test_format_non_string_value_errors :: proc(t: ^testing.T) {
Int_Data :: struct {
count: int,
}
data := Int_Data {
count = 42,
}
tpl, _ := parse("{{count | format}}", context.temp_allocator)
defer delete_template(&tpl)
_, err := render(tpl, data, {}, context.temp_allocator)
testing.expect(t, err != nil, "non-string value should error")
}
@(test)
test_format_invalid_month_errors :: proc(t: ^testing.T) {
data := Format_Data {
date = "2023-13-15",
}
tpl, _ := parse("{{date | format}}", context.temp_allocator)
defer delete_template(&tpl)
_, err := render(tpl, data, {}, context.temp_allocator)
testing.expect(t, err != nil, "invalid month should error")
}
@(test)
test_format_inside_section_renders :: proc(t: ^testing.T) {
// Mirrors the datetime.html partial pattern: section pushes raw string,
// partial uses {{.}} for ISO attr and {{. | format}} for display.
data := Format_Data {
date = "2025-12-25T00:00:00Z",
}
tpl, _ := parse(
"{{#date}}<time datetime=\"{{.}}\">{{. | format}}</time>{{/date}}",
context.temp_allocator,
)
result, _ := render(tpl, data, {}, context.temp_allocator)
testing.expect_value(t, result, "<time datetime=\"2025-12-25T00:00:00Z\">25 Dec 2025</time>")
}
@(test)
test_format_inside_section_skips_when_empty :: proc(t: ^testing.T) {
data := Format_Data {
date = "",
}
tpl, _ := parse("[{{#date}}<time>{{. | format}}</time>{{/date}}]", context.temp_allocator)
result, _ := render(tpl, data, {}, context.temp_allocator)
testing.expect_value(t, result, "[]")
}
@(test)
test_format_handles_all_iso8601_variants :: proc(t: ^testing.T) {
cases := [5]struct {
input, expected: string,
} {
{"2023-10-15T13:18:50-07:00", "15 Oct 2023"},
{"2023-10-15T13:18:50-0700", "15 Oct 2023"},
{"2023-10-15T13:18:50Z", "15 Oct 2023"},
{"2023-10-15T13:18:50", "15 Oct 2023"},
{"2023-10-15", "15 Oct 2023"},
}
for &c in cases {
data := Format_Data {
date = c.input,
}
tpl, _ := parse("{{date | format}}", context.temp_allocator)
result, _ := render(tpl, data, {}, context.temp_allocator)
testing.expect_value(t, result, c.expected)
}
}