test: Add comprehensive tests for Language::extensions

[Copilot]

Issue #54 requested test coverage for the Language::extensions method, which returns file extensions for each supported language.

Changes

Added 5 test functions to crates/mother-core/src/scanner/tests/tests_language.rs:

• test_language_extensions - Verifies all language variants return correct extensions
• test_extensions_consistency_with_from_extension - Validates bidirectional consistency between extensions() and from_extension()
• test_extensions_are_not_empty - Ensures every language has at least one extension
• test_extensions_multiple_for_typescript - Validates TypeScript's dual extensions (.ts, .tsx)
• test_extensions_multiple_for_javascript - Validates JavaScript's four extensions (.js, .jsx, .mjs, .cjs)

Example

// Verify extensions match what from_extension accepts
for language in [Language::Rust, Language::Python, /* ... */] {
    for ext in language.extensions() {
        assert_eq!(Language::from_extension(ext), Some(language));
    }
}

The consistency test ensures that extensions() and from_extension() remain synchronized as new extensions are added.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• 192.168.1.100
  • Triggering command: /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 ceyf2aem98s7aqgbxg9x3v2s.0zkg3qp.rcgu.o csjiu7eotfqkwlkq6ex4jg0z.0zkg3qp.rcgu.o jk03xox3lff7u1d7hpf7970k.0zkg3qp.rcgu.o kn3qemt1bv0lihu8a5118inn.0zkg3qp.rcgu.o mma15qabx0kkg2rr3t4bgfgc.0zkg3qp.rcgu.o nexhi3i74gcmhw8i50tfqkpv.0zkg3qp.rcgu.o nrkz536hqv555qrcqsztow2g.0zkg3qp.rcgu.o nsk9d1gcjhbhhiqxf3u2d0ui.0zkg3qp.rcgu.o nskb05xauadln0tvcttxwnli.0zkg3qp.rcgu.o o1lbzzvolx1njb7c8ypu72fv.0zkg3qp.rcgu.o rn6xn95ih96oowwjxznl1uk8.0zkg3qp.rcgu.o wxcj�� zn6dendar8cfixi4mtdgdrbb.0zkg3qp.rcgu.o 3iha0r1drgjqvxwh0a8p69xq.0zkg3qp.rcgu.o ndor/bin/as it2 217e8a4ca5-crede--norc (packet block)
  • Triggering command: /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 --test-threads=4 --emit=dep-info,metadata -C opt-level=1 -C embed-bitcode=no certs-0.7.3/src/lib.rs codegen-units=256 -C debuginfo=2 -C ttp target/debug/bui--detach ld/libgit2-sys-6/home/REDACTED/work/mother/mother/target/debug/deps/clap_derive-3c563882b6a5a922.c--crate-name known-linux-gnu//home/REDACTED/work/mother/mother/target/debug/deps/clap_derive-3c563882b6a5a922.cthread_local e -I pointer cc (packet block)
• invalid-host
  • Triggering command: /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 ceyf2aem98s7aqgbxg9x3v2s.0zkg3qp.rcgu.o csjiu7eotfqkwlkq6ex4jg0z.0zkg3qp.rcgu.o jk03xox3lff7u1d7hpf7970k.0zkg3qp.rcgu.o kn3qemt1bv0lihu8a5118inn.0zkg3qp.rcgu.o mma15qabx0kkg2rr3t4bgfgc.0zkg3qp.rcgu.o nexhi3i74gcmhw8i50tfqkpv.0zkg3qp.rcgu.o nrkz536hqv555qrcqsztow2g.0zkg3qp.rcgu.o nsk9d1gcjhbhhiqxf3u2d0ui.0zkg3qp.rcgu.o nskb05xauadln0tvcttxwnli.0zkg3qp.rcgu.o o1lbzzvolx1njb7c8ypu72fv.0zkg3qp.rcgu.o rn6xn95ih96oowwjxznl1uk8.0zkg3qp.rcgu.o wxcj�� zn6dendar8cfixi4mtdgdrbb.0zkg3qp.rcgu.o 3iha0r1drgjqvxwh0a8p69xq.0zkg3qp.rcgu.o ndor/bin/as it2 217e8a4ca5-crede--norc (dns block)
  • Triggering command: /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 --test-threads=4 --emit=dep-info,metadata -C opt-level=1 -C embed-bitcode=no certs-0.7.3/src/lib.rs codegen-units=256 -C debuginfo=2 -C ttp target/debug/bui--detach ld/libgit2-sys-6/home/REDACTED/work/mother/mother/target/debug/deps/clap_derive-3c563882b6a5a922.c--crate-name known-linux-gnu//home/REDACTED/work/mother/mother/target/debug/deps/clap_derive-3c563882b6a5a922.cthread_local e -I pointer cc (dns block)
• invalid-uri
  • Triggering command: /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 ceyf2aem98s7aqgbxg9x3v2s.0zkg3qp.rcgu.o csjiu7eotfqkwlkq6ex4jg0z.0zkg3qp.rcgu.o jk03xox3lff7u1d7hpf7970k.0zkg3qp.rcgu.o kn3qemt1bv0lihu8a5118inn.0zkg3qp.rcgu.o mma15qabx0kkg2rr3t4bgfgc.0zkg3qp.rcgu.o nexhi3i74gcmhw8i50tfqkpv.0zkg3qp.rcgu.o nrkz536hqv555qrcqsztow2g.0zkg3qp.rcgu.o nsk9d1gcjhbhhiqxf3u2d0ui.0zkg3qp.rcgu.o nskb05xauadln0tvcttxwnli.0zkg3qp.rcgu.o o1lbzzvolx1njb7c8ypu72fv.0zkg3qp.rcgu.o rn6xn95ih96oowwjxznl1uk8.0zkg3qp.rcgu.o wxcj�� zn6dendar8cfixi4mtdgdrbb.0zkg3qp.rcgu.o 3iha0r1drgjqvxwh0a8p69xq.0zkg3qp.rcgu.o ndor/bin/as it2 217e8a4ca5-crede--norc (dns block)
  • Triggering command: /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 --test-threads=4 --emit=dep-info,metadata -C opt-level=1 -C embed-bitcode=no certs-0.7.3/src/lib.rs codegen-units=256 -C debuginfo=2 -C ttp target/debug/bui--detach ld/libgit2-sys-6/home/REDACTED/work/mother/mother/target/debug/deps/clap_derive-3c563882b6a5a922.c--crate-name known-linux-gnu//home/REDACTED/work/mother/mother/target/debug/deps/clap_derive-3c563882b6a5a922.cthread_local e -I pointer cc (dns block)
• neo4j.example.com
  • Triggering command: /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 ceyf2aem98s7aqgbxg9x3v2s.0zkg3qp.rcgu.o csjiu7eotfqkwlkq6ex4jg0z.0zkg3qp.rcgu.o jk03xox3lff7u1d7hpf7970k.0zkg3qp.rcgu.o kn3qemt1bv0lihu8a5118inn.0zkg3qp.rcgu.o mma15qabx0kkg2rr3t4bgfgc.0zkg3qp.rcgu.o nexhi3i74gcmhw8i50tfqkpv.0zkg3qp.rcgu.o nrkz536hqv555qrcqsztow2g.0zkg3qp.rcgu.o nsk9d1gcjhbhhiqxf3u2d0ui.0zkg3qp.rcgu.o nskb05xauadln0tvcttxwnli.0zkg3qp.rcgu.o o1lbzzvolx1njb7c8ypu72fv.0zkg3qp.rcgu.o rn6xn95ih96oowwjxznl1uk8.0zkg3qp.rcgu.o wxcj�� zn6dendar8cfixi4mtdgdrbb.0zkg3qp.rcgu.o 3iha0r1drgjqvxwh0a8p69xq.0zkg3qp.rcgu.o ndor/bin/as it2 217e8a4ca5-crede--norc (dns block)
  • Triggering command: /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 --test-threads=4 --emit=dep-info,metadata -C opt-level=1 -C embed-bitcode=no certs-0.7.3/src/lib.rs codegen-units=256 -C debuginfo=2 -C ttp target/debug/bui--detach ld/libgit2-sys-6/home/REDACTED/work/mother/mother/target/debug/deps/clap_derive-3c563882b6a5a922.c--crate-name known-linux-gnu//home/REDACTED/work/mother/mother/target/debug/deps/clap_derive-3c563882b6a5a922.cthread_local e -I pointer cc (dns block)
• neo4j.production.example.com
  • Triggering command: /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 ceyf2aem98s7aqgbxg9x3v2s.0zkg3qp.rcgu.o csjiu7eotfqkwlkq6ex4jg0z.0zkg3qp.rcgu.o jk03xox3lff7u1d7hpf7970k.0zkg3qp.rcgu.o kn3qemt1bv0lihu8a5118inn.0zkg3qp.rcgu.o mma15qabx0kkg2rr3t4bgfgc.0zkg3qp.rcgu.o nexhi3i74gcmhw8i50tfqkpv.0zkg3qp.rcgu.o nrkz536hqv555qrcqsztow2g.0zkg3qp.rcgu.o nsk9d1gcjhbhhiqxf3u2d0ui.0zkg3qp.rcgu.o nskb05xauadln0tvcttxwnli.0zkg3qp.rcgu.o o1lbzzvolx1njb7c8ypu72fv.0zkg3qp.rcgu.o rn6xn95ih96oowwjxznl1uk8.0zkg3qp.rcgu.o wxcj�� zn6dendar8cfixi4mtdgdrbb.0zkg3qp.rcgu.o 3iha0r1drgjqvxwh0a8p69xq.0zkg3qp.rcgu.o ndor/bin/as it2 217e8a4ca5-crede--norc (dns block)
  • Triggering command: /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 --test-threads=4 --emit=dep-info,metadata -C opt-level=1 -C embed-bitcode=no certs-0.7.3/src/lib.rs codegen-units=256 -C debuginfo=2 -C ttp target/debug/bui--detach ld/libgit2-sys-6/home/REDACTED/work/mother/mother/target/debug/deps/clap_derive-3c563882b6a5a922.c--crate-name known-linux-gnu//home/REDACTED/work/mother/mother/target/debug/deps/clap_derive-3c563882b6a5a922.cthread_local e -I pointer cc (dns block)
• nonexistent.host.that.does.not.exist
  • Triggering command: /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 ceyf2aem98s7aqgbxg9x3v2s.0zkg3qp.rcgu.o csjiu7eotfqkwlkq6ex4jg0z.0zkg3qp.rcgu.o jk03xox3lff7u1d7hpf7970k.0zkg3qp.rcgu.o kn3qemt1bv0lihu8a5118inn.0zkg3qp.rcgu.o mma15qabx0kkg2rr3t4bgfgc.0zkg3qp.rcgu.o nexhi3i74gcmhw8i50tfqkpv.0zkg3qp.rcgu.o nrkz536hqv555qrcqsztow2g.0zkg3qp.rcgu.o nsk9d1gcjhbhhiqxf3u2d0ui.0zkg3qp.rcgu.o nskb05xauadln0tvcttxwnli.0zkg3qp.rcgu.o o1lbzzvolx1njb7c8ypu72fv.0zkg3qp.rcgu.o rn6xn95ih96oowwjxznl1uk8.0zkg3qp.rcgu.o wxcj�� zn6dendar8cfixi4mtdgdrbb.0zkg3qp.rcgu.o 3iha0r1drgjqvxwh0a8p69xq.0zkg3qp.rcgu.o ndor/bin/as it2 217e8a4ca5-crede--norc (dns block)
  • Triggering command: /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 --test-threads=4 --emit=dep-info,metadata -C opt-level=1 -C embed-bitcode=no certs-0.7.3/src/lib.rs codegen-units=256 -C debuginfo=2 -C ttp target/debug/bui--detach ld/libgit2-sys-6/home/REDACTED/work/mother/mother/target/debug/deps/clap_derive-3c563882b6a5a922.c--crate-name known-linux-gnu//home/REDACTED/work/mother/mother/target/debug/deps/clap_derive-3c563882b6a5a922.cthread_local e -I pointer cc (dns block)
• not-a-valid-uri
  • Triggering command: /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 ceyf2aem98s7aqgbxg9x3v2s.0zkg3qp.rcgu.o csjiu7eotfqkwlkq6ex4jg0z.0zkg3qp.rcgu.o jk03xox3lff7u1d7hpf7970k.0zkg3qp.rcgu.o kn3qemt1bv0lihu8a5118inn.0zkg3qp.rcgu.o mma15qabx0kkg2rr3t4bgfgc.0zkg3qp.rcgu.o nexhi3i74gcmhw8i50tfqkpv.0zkg3qp.rcgu.o nrkz536hqv555qrcqsztow2g.0zkg3qp.rcgu.o nsk9d1gcjhbhhiqxf3u2d0ui.0zkg3qp.rcgu.o nskb05xauadln0tvcttxwnli.0zkg3qp.rcgu.o o1lbzzvolx1njb7c8ypu72fv.0zkg3qp.rcgu.o rn6xn95ih96oowwjxznl1uk8.0zkg3qp.rcgu.o wxcj�� zn6dendar8cfixi4mtdgdrbb.0zkg3qp.rcgu.o 3iha0r1drgjqvxwh0a8p69xq.0zkg3qp.rcgu.o ndor/bin/as it2 217e8a4ca5-crede--norc (dns block)
  • Triggering command: /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 /home/REDACTED/work/mother/mother/target/debug/deps/mother_cli-d349731c4bc5c110 --test-threads=4 --emit=dep-info,metadata -C opt-level=1 -C embed-bitcode=no certs-0.7.3/src/lib.rs codegen-units=256 -C debuginfo=2 -C ttp target/debug/bui--detach ld/libgit2-sys-6/home/REDACTED/work/mother/mother/target/debug/deps/clap_derive-3c563882b6a5a922.c--crate-name known-linux-gnu//home/REDACTED/work/mother/mother/target/debug/deps/clap_derive-3c563882b6a5a922.cthread_local e -I pointer cc (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

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Original prompt

Add comprehensive tests for the language-language module.

Issues to Resolve

• test: Add tests for function <mother_core::scanner::language::Language>::extensions #54: test: Add tests for function <mother_core::scanner::language::Language>::extensions

CRITICAL REQUIREMENTS

1. TEST THROUGH PUBLIC API ONLY

• Do NOT make private methods public just for testing
• Test internal logic through public entrypoint functions
• If a function is private, test it via the public function that calls it

2. VERIFY LOGIC CORRECTNESS

• READ and UNDERSTAND the implementation before writing tests
• Check if the logic makes sense and is correct
• If you find bugs, note them but still test current behavior

3. TEST FILE LOCATION AND NAMING

• Unit tests: language_language/tests/tests_*.rs (tests folder inside module)
• Integration tests: tests/language_language/tests_*.rs (module folder inside root tests/)
• Use prefix tests_ for all test files (e.g., tests_selection_range.rs)
• All tests for this batch go in the appropriate folder
• Example unit test: server/selection_range.rs → server/tests/tests_selection_range.rs
• Example integration test: server/selection_range.rs → tests/server/tests_selection_range.rs

4. QUALITY TESTS ONLY

• NO TODO comments or placeholder tests
• Test edge cases: empty inputs, error conditions, boundaries
• Descriptive test names explaining what's tested

5. CLOSE ALL ISSUES IN ONE COMMIT

Commit message: test: Add comprehensive tests for language-language (closes #54)

6. VERIFY BEFORE PR

• make run-guidelines must pass
• Then create PR

Create a single PR resolving all 1 issues.

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