Will Anderson
282df712a8
Provides assert_true/false, assert_eq, assert_int_eq, assert_neq, assert_contains, assert_starts_with, assert_ends_with, and fail. Test cases are registered by name+fn_name, executed sequentially via the thread/dlsym dispatch mechanism, with results tracked in state_. Includes tests/runtime/string_test.el covering all 23 string.el exports.
342 lines
18 KiB
EmacsLisp
342 lines
18 KiB
EmacsLisp
// tests/runtime/string_test.el — Test suite for runtime/string.el
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//
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// Exercises every public function exported by runtime/string.el using the
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// runtime/test.el framework. Each test function covers one string primitive
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// or a tight family of related functions.
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//
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// ── Build and run ────────────────────────────────────────────────────────────
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//
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// # Combine runtime modules + test framework + this file, then compile:
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// cat runtime/string.el runtime/math.el runtime/state.el runtime/env.el \
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// runtime/fs.el runtime/exec.el runtime/time.el runtime/json.el \
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// runtime/http.el runtime/engram.el runtime/thread.el \
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// runtime/test.el \
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// tests/runtime/string_test.el > /tmp/string_test_combined.el
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//
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// ./dist/platform/elc /tmp/string_test_combined.el > /tmp/string_test.c
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// cc -std=c11 -I el-compiler/runtime -lcurl -lpthread \
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// -o /tmp/string_test /tmp/string_test.c el-compiler/runtime/el_seed.c
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// /tmp/string_test; echo "exit: $?"
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//
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// Exit code equals the number of failing assertions (0 = all pass).
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//
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// ── Coverage ─────────────────────────────────────────────────────────────────
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//
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// str_eq str_neq (via assert_neq)
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// str_len str_concat
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// str_starts_with str_ends_with
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// str_contains str_index_of
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// str_slice str_replace
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// str_to_upper str_to_lower
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// str_trim str_lstrip / str_rstrip
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// str_split str_join
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// int_to_str str_to_int
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// str_repeat str_reverse
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// str_count
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// ── str_eq ────────────────────────────────────────────────────────────────────
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fn test_str_eq(_: String) -> String {
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assert_true(str_eq("hello", "hello"), "identical strings are equal")
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assert_false(str_eq("hello", "world"), "different strings are not equal")
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assert_true(str_eq("", ""), "empty strings are equal")
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assert_false(str_eq("a", ""), "non-empty vs empty is not equal")
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assert_false(str_eq("", "a"), "empty vs non-empty is not equal")
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assert_false(str_eq("Hello", "hello"), "case-sensitive comparison")
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return ""
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}
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// ── str_len ───────────────────────────────────────────────────────────────────
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fn test_str_len(_: String) -> String {
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assert_int_eq(str_len(""), 0, "empty string has length 0")
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assert_int_eq(str_len("a"), 1, "single char has length 1")
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assert_int_eq(str_len("hello"), 5, "hello has length 5")
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assert_int_eq(str_len("hello world"), 11, "space included in length")
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return ""
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}
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// ── str_concat ────────────────────────────────────────────────────────────────
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fn test_str_concat(_: String) -> String {
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assert_eq(str_concat("hello", " world"), "hello world", "basic concat")
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assert_eq(str_concat("", "world"), "world", "empty prefix")
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assert_eq(str_concat("hello", ""), "hello", "empty suffix")
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assert_eq(str_concat("", ""), "", "both empty")
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return ""
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}
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// ── str_starts_with ───────────────────────────────────────────────────────────
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fn test_str_starts_with(_: String) -> String {
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assert_true(str_starts_with("hello world", "hello"), "prefix present")
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assert_false(str_starts_with("hello world", "world"), "not a prefix")
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assert_true(str_starts_with("hello", "hello"), "string is its own prefix")
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assert_true(str_starts_with("hello", ""), "empty prefix always true")
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assert_false(str_starts_with("", "a"), "empty string has no prefix")
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assert_false(str_starts_with("hi", "hello"), "prefix longer than string")
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return ""
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}
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// ── str_ends_with ─────────────────────────────────────────────────────────────
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fn test_str_ends_with(_: String) -> String {
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assert_true(str_ends_with("hello world", "world"), "suffix present")
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assert_false(str_ends_with("hello world", "hello"), "not a suffix")
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assert_true(str_ends_with("hello", "hello"), "string is its own suffix")
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assert_true(str_ends_with("hello", ""), "empty suffix always true")
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assert_false(str_ends_with("", "a"), "empty string has no suffix")
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assert_false(str_ends_with("hi", "world"), "suffix longer than string")
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return ""
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}
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// ── str_contains ─────────────────────────────────────────────────────────────
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fn test_str_contains(_: String) -> String {
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assert_true(str_contains("hello world", "world"), "contains at end")
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assert_true(str_contains("hello world", "hello"), "contains at start")
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assert_true(str_contains("hello world", "lo wo"), "contains in middle")
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assert_false(str_contains("hello world", "xyz"), "not contained")
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assert_true(str_contains("hello", ""), "empty sub always contained")
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assert_false(str_contains("", "a"), "empty string contains nothing")
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assert_true(str_contains("hello", "hello"), "string contains itself")
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return ""
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}
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// ── str_index_of ─────────────────────────────────────────────────────────────
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fn test_str_index_of(_: String) -> String {
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assert_int_eq(str_index_of("hello world", "world"), 6, "index of suffix")
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assert_int_eq(str_index_of("hello world", "hello"), 0, "index of prefix")
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assert_int_eq(str_index_of("hello world", "o"), 4, "index of first occurrence")
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assert_int_eq(str_index_of("hello world", "xyz"), -1, "not found returns -1")
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assert_int_eq(str_index_of("hello", ""), 0, "empty sub returns 0")
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assert_int_eq(str_index_of("", "a"), -1, "search in empty string")
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assert_int_eq(str_index_of("aababc", "ab"), 1, "finds first occurrence")
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return ""
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}
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// ── str_replace ───────────────────────────────────────────────────────────────
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fn test_str_replace(_: String) -> String {
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assert_eq(str_replace("hello world", "world", "there"), "hello there", "basic replace")
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assert_eq(str_replace("aaa", "a", "b"), "bbb", "replace all occurrences")
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assert_eq(str_replace("hello", "xyz", "abc"), "hello", "no match is identity")
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assert_eq(str_replace("", "a", "b"), "", "empty string unchanged")
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assert_eq(str_replace("hello", "", "x"), "hello", "empty from is identity")
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assert_eq(str_replace("hello hello", "hello", "bye"), "bye bye", "replace multiple")
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assert_eq(str_replace("aXbXc", "X", "-"), "a-b-c", "single-char delimiter")
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return ""
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}
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// ── str_slice ─────────────────────────────────────────────────────────────────
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fn test_str_slice(_: String) -> String {
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assert_eq(str_slice("hello world", 0, 5), "hello", "slice from start")
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assert_eq(str_slice("hello world", 6, 11), "world", "slice from middle")
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assert_eq(str_slice("hello world", 0, 0), "", "zero-length slice")
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assert_eq(str_slice("hello", 0, 100), "hello", "end beyond length clamped")
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assert_eq(str_slice("hello", 3, 3), "", "start == end is empty")
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assert_eq(str_slice("hello world", 2, 7), "llo w", "interior slice")
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return ""
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}
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// ── str_to_upper / str_to_lower ──────────────────────────────────────────────
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fn test_str_to_upper(_: String) -> String {
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assert_eq(str_to_upper("hello"), "HELLO", "lowercase to uppercase")
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assert_eq(str_to_upper("HELLO"), "HELLO", "already uppercase unchanged")
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assert_eq(str_to_upper("Hello World"), "HELLO WORLD", "mixed case")
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assert_eq(str_to_upper(""), "", "empty string unchanged")
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assert_eq(str_to_upper("hello123"), "HELLO123", "digits unchanged")
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return ""
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}
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fn test_str_to_lower(_: String) -> String {
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assert_eq(str_to_lower("HELLO"), "hello", "uppercase to lowercase")
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assert_eq(str_to_lower("hello"), "hello", "already lowercase unchanged")
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assert_eq(str_to_lower("Hello World"), "hello world", "mixed case")
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assert_eq(str_to_lower(""), "", "empty string unchanged")
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assert_eq(str_to_lower("HELLO123"), "hello123", "digits unchanged")
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return ""
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}
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// ── str_trim ─────────────────────────────────────────────────────────────────
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fn test_str_trim(_: String) -> String {
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assert_eq(str_trim(" hello "), "hello", "trims spaces both sides")
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assert_eq(str_trim("hello"), "hello", "no whitespace unchanged")
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assert_eq(str_trim(" "), "", "all-space string becomes empty")
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assert_eq(str_trim(""), "", "empty string unchanged")
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assert_eq(str_trim("\t hello \n"), "hello", "trims tabs and newlines")
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assert_eq(str_trim(" hello world "), "hello world", "internal spaces preserved")
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return ""
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}
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// ── str_split ─────────────────────────────────────────────────────────────────
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fn test_str_split(_: String) -> String {
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let parts: [String] = str_split("a,b,c", ",")
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assert_int_eq(el_list_len(parts), 3, "split yields 3 parts")
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assert_eq(el_list_get(parts, 0), "a", "first part is a")
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assert_eq(el_list_get(parts, 1), "b", "second part is b")
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assert_eq(el_list_get(parts, 2), "c", "third part is c")
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let single: [String] = str_split("hello", ",")
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assert_int_eq(el_list_len(single), 1, "no sep found yields 1 part")
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assert_eq(el_list_get(single, 0), "hello", "single part is the full string")
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let trailing: [String] = str_split("a,b,", ",")
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assert_int_eq(el_list_len(trailing), 3, "trailing sep yields empty last element")
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assert_eq(el_list_get(trailing, 2), "", "last element is empty")
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let empty_str: [String] = str_split("", ",")
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assert_int_eq(el_list_len(empty_str), 1, "splitting empty string yields one empty element")
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let multi: [String] = str_split("one::two::three", "::")
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assert_int_eq(el_list_len(multi), 3, "multi-char separator works")
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assert_eq(el_list_get(multi, 0), "one", "multi-sep first part")
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assert_eq(el_list_get(multi, 2), "three", "multi-sep last part")
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return ""
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}
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// ── str_join ─────────────────────────────────────────────────────────────────
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fn test_str_join(_: String) -> String {
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let parts: [String] = el_list_empty()
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let parts = el_list_append(parts, "a")
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let parts = el_list_append(parts, "b")
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let parts = el_list_append(parts, "c")
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assert_eq(str_join(parts, ","), "a,b,c", "basic join with comma")
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assert_eq(str_join(parts, ""), "abc", "join with empty separator")
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assert_eq(str_join(parts, " | "), "a | b | c", "join with multi-char sep")
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let empty_list: [String] = el_list_empty()
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assert_eq(str_join(empty_list, ","), "", "joining empty list yields empty string")
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let one: [String] = el_list_empty()
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let one = el_list_append(one, "solo")
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assert_eq(str_join(one, ","), "solo", "joining single element yields that element")
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return ""
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}
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// ── int_to_str / str_to_int ──────────────────────────────────────────────────
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fn test_int_to_str(_: String) -> String {
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assert_eq(int_to_str(0), "0", "zero")
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assert_eq(int_to_str(42), "42", "positive integer")
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assert_eq(int_to_str(-1), "-1", "negative integer")
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assert_eq(int_to_str(1000000), "1000000", "large integer")
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return ""
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}
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fn test_str_to_int(_: String) -> String {
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assert_int_eq(str_to_int("0"), 0, "zero")
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assert_int_eq(str_to_int("42"), 42, "positive integer")
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assert_int_eq(str_to_int("-1"), -1, "negative integer")
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assert_int_eq(str_to_int("1000000"), 1000000, "large integer")
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return ""
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}
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// ── str_repeat ────────────────────────────────────────────────────────────────
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fn test_str_repeat(_: String) -> String {
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assert_eq(str_repeat("ab", 3), "ababab", "repeat 3 times")
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assert_eq(str_repeat("x", 1), "x", "repeat once")
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assert_eq(str_repeat("x", 0), "", "repeat zero times yields empty")
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assert_eq(str_repeat("", 5), "", "repeating empty string yields empty")
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assert_eq(str_repeat("-", 4), "----", "single char repeat")
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return ""
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}
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// ── str_reverse ───────────────────────────────────────────────────────────────
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fn test_str_reverse(_: String) -> String {
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assert_eq(str_reverse("hello"), "olleh", "basic reverse")
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assert_eq(str_reverse("a"), "a", "single char is its own reverse")
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assert_eq(str_reverse(""), "", "empty string reverses to empty")
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assert_eq(str_reverse("abcd"), "dcba", "even-length reverse")
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assert_eq(str_reverse("racecar"), "racecar", "palindrome is unchanged")
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return ""
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}
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// ── str_count ─────────────────────────────────────────────────────────────────
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fn test_str_count(_: String) -> String {
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assert_int_eq(str_count("hello world hello", "hello"), 2, "two occurrences")
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assert_int_eq(str_count("aaa", "a"), 3, "adjacent single chars")
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assert_int_eq(str_count("aaa", "aa"), 1, "non-overlapping: one match")
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assert_int_eq(str_count("hello", "xyz"), 0, "no match")
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assert_int_eq(str_count("", "a"), 0, "empty string has no occurrences")
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assert_int_eq(str_count("hello", ""), 0, "empty sub returns 0")
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return ""
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}
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// ── str_strip_prefix / str_strip_suffix ───────────────────────────────────────
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fn test_str_strip_prefix(_: String) -> String {
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assert_eq(str_strip_prefix("foobar", "foo"), "bar", "strips matching prefix")
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assert_eq(str_strip_prefix("foobar", "baz"), "foobar", "no-match is identity")
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assert_eq(str_strip_prefix("hello", ""), "hello", "empty prefix is identity")
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assert_eq(str_strip_prefix("hello", "hello"), "", "full match yields empty")
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return ""
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}
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fn test_str_strip_suffix(_: String) -> String {
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assert_eq(str_strip_suffix("hello.md", ".md"), "hello", "strips matching suffix")
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assert_eq(str_strip_suffix("hello.md", ".txt"), "hello.md", "no-match is identity")
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assert_eq(str_strip_suffix("hello", ""), "hello", "empty suffix is identity")
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assert_eq(str_strip_suffix("hello", "hello"), "", "full match yields empty")
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return ""
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}
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// ── str_find_chars ────────────────────────────────────────────────────────────
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fn test_str_find_chars(_: String) -> String {
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assert_int_eq(str_find_chars("hello world", " "), 5, "finds space at index 5")
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assert_int_eq(str_find_chars("hello", "xyz"), -1, "not found returns -1")
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assert_int_eq(str_find_chars("hello", ""), -1, "empty charset returns -1")
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assert_int_eq(str_find_chars("hello", "aeiou"), 1, "finds first vowel at index 1")
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assert_int_eq(str_find_chars("", "a"), -1, "search in empty string returns -1")
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return ""
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}
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// ── str_last_index_of ─────────────────────────────────────────────────────────
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fn test_str_last_index_of(_: String) -> String {
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assert_int_eq(str_last_index_of("hello hello", "hello"), 6, "last occurrence")
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assert_int_eq(str_last_index_of("hello", "hello"), 0, "single occurrence")
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assert_int_eq(str_last_index_of("hello", "xyz"), -1, "not found returns -1")
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assert_int_eq(str_last_index_of("aababc", "ab"), 3, "last ab in aababc")
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return ""
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}
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// ── Entry point ───────────────────────────────────────────────────────────────
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fn main() -> Int {
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test_case("str_eq", "test_str_eq")
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test_case("str_len", "test_str_len")
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test_case("str_concat", "test_str_concat")
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test_case("str_starts_with", "test_str_starts_with")
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test_case("str_ends_with", "test_str_ends_with")
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test_case("str_contains", "test_str_contains")
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test_case("str_index_of", "test_str_index_of")
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test_case("str_replace", "test_str_replace")
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test_case("str_slice", "test_str_slice")
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test_case("str_to_upper", "test_str_to_upper")
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test_case("str_to_lower", "test_str_to_lower")
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test_case("str_trim", "test_str_trim")
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test_case("str_split", "test_str_split")
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test_case("str_join", "test_str_join")
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test_case("int_to_str", "test_int_to_str")
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test_case("str_to_int", "test_str_to_int")
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test_case("str_repeat", "test_str_repeat")
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test_case("str_reverse", "test_str_reverse")
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test_case("str_count", "test_str_count")
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test_case("str_strip_prefix", "test_str_strip_prefix")
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test_case("str_strip_suffix", "test_str_strip_suffix")
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test_case("str_find_chars", "test_str_find_chars")
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test_case("str_last_index_of", "test_str_last_index_of")
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return test_run_all()
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}
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