295 lines
7.8 KiB
Rust
295 lines
7.8 KiB
Rust
use parsing::{Hint, SUPPORTED_FUNCTIONS};
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use std::collections::HashMap;
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#[test]
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fn hashmap_gen_test() {
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let data = ["time", "text", "test"];
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let expect = vec![
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("t", "Hint::Many(&[\"ime(\", \"ext(\", \"est(\"])"),
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("te", "Hint::Many(&[\"xt(\", \"st(\"])"),
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("tes", "Hint::Single(\"t(\")"),
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("test", "Hint::Single(\"(\")"),
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("tex", "Hint::Single(\"t(\")"),
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("text", "Hint::Single(\"(\")"),
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("ti", "Hint::Single(\"me(\")"),
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("tim", "Hint::Single(\"e(\")"),
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("time", "Hint::Single(\"(\")"),
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];
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assert_eq!(
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parsing::compile_hashmap(data.iter().map(|e| e.to_string()).collect()),
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expect
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.iter()
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.map(|(a, b)| (a.to_string(), b.to_string()))
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.collect::<Vec<(String, String)>>()
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);
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}
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/// Returns if function with string `func_str` is valid after processing through [`process_func_str`]
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fn func_is_valid(func_str: &str) -> bool {
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parsing::BackingFunction::new(&parsing::process_func_str(func_str)).is_ok()
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}
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/// Used for testing: passes function to [`process_func_str`] before running [`test_func`]. if `expect_valid` == `true`, it expects no errors to be created.
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fn test_func_helper(func_str: &str, expect_valid: bool) {
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let is_valid = func_is_valid(func_str);
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let string = format!(
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"function: {} (expected: {}, got: {})",
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func_str, expect_valid, is_valid
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);
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if is_valid == expect_valid {
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println!("{}", string);
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} else {
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panic!("{}", string);
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}
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}
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/// Tests to make sure functions that are expected to succeed, succeed.
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#[test]
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fn test_expected() {
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let values = HashMap::from([
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("", true),
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("x^2", true),
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("2x", true),
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("E^x", true),
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("log10(x)", true),
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("xxxxx", true),
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("sin(x)", true),
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("xsin(x)", true),
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("sin(x)cos(x)", true),
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("x/0", true),
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("(x+1)(x-3)", true),
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("cos(xsin(x)x)", true),
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("(2x+1)x", true),
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("(2x+1)pi", true),
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("pi(2x+1)", true),
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("pipipipipipix", true),
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("e^sin(x)", true),
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("E^sin(x)", true),
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("e^x", true),
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("x**2", true),
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("a", false),
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("log222(x)", false),
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("abcdef", false),
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("log10(x", false),
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("x^a", false),
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("sin(cos(x)))", false),
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("0/0", false),
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]);
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for (key, value) in values {
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test_func_helper(key, value);
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}
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}
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/// Helps with tests of [`process_func_str`]
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fn test_process_helper(input: &str, expected: &str) {
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assert_eq!(&parsing::process_func_str(input), expected);
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}
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/// Tests to make sure my cursed function works as intended
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#[test]
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fn func_process_test() {
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let values = HashMap::from([
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("2x", "2*x"),
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(")(", ")*("),
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("(2", "(2"),
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("log10(x)", "log10(x)"),
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("log2(x)", "log2(x)"),
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("pipipipipipi", "π*π*π*π*π*π"),
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("10pi", "10*π"),
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("pi10", "π*10"),
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("10pi10", "10*π*10"),
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("emax(x)", "e*max(x)"),
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("pisin(x)", "π*sin(x)"),
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("e^sin(x)", "e^sin(x)"),
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("x**2", "x^2"),
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("(x+1)(x-3)", "(x+1)*(x-3)"),
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]);
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for (key, value) in values {
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test_process_helper(key, value);
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}
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for func in SUPPORTED_FUNCTIONS.iter() {
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let func_new = format!("{}(x)", func);
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test_process_helper(&func_new, &func_new);
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}
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}
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/// Tests to make sure hints are properly outputed based on input
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#[test]
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fn hints() {
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let values = HashMap::from([
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("", Hint::Single("x^2")),
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("si", Hint::Many(&["n(", "nh(", "gnum("])),
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("log", Hint::Many(&["2(", "10("])),
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("cos", Hint::Many(&["(", "h("])),
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("sin(", Hint::Single(")")),
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("sqrt", Hint::Single("(")),
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("ln(x)", Hint::None),
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("ln(x)cos", Hint::Many(&["(", "h("])),
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("ln(x)*cos", Hint::Many(&["(", "h("])),
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("sin(cos", Hint::Many(&["(", "h("])),
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]);
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for (key, value) in values {
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println!("{} + {:?}", key, value);
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assert_eq!(parsing::generate_hint(key), &value);
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}
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}
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#[test]
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fn hint_to_string() {
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let values = HashMap::from([
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("x^2", Hint::Single("x^2")),
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(
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r#"["n(", "nh(", "gnum("]"#,
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Hint::Many(&["n(", "nh(", "gnum("]),
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),
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(r#"["n("]"#, Hint::Many(&["n("])),
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("None", Hint::None),
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]);
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for (key, value) in values {
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assert_eq!(value.to_string(), key);
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}
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}
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#[test]
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fn invalid_function() {
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use parsing::SplitType;
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SUPPORTED_FUNCTIONS
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.iter()
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.flat_map(|func1| {
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SUPPORTED_FUNCTIONS
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.iter()
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.map(|func2| func1.to_string() + func2)
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.collect::<Vec<String>>()
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})
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.filter(|func| !SUPPORTED_FUNCTIONS.contains(&func.as_str()))
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.for_each(|key| {
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let split = parsing::split_function(&key, SplitType::Multiplication);
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if split.len() != 1 {
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panic!("failed: {} (len: {}, split: {:?})", key, split.len(), split);
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}
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let generated_hint = parsing::generate_hint(&key);
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if generated_hint.is_none() {
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println!("success: {}", key);
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} else {
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panic!("failed: {} (Hint: '{}')", key, generated_hint);
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}
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});
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}
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#[test]
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fn split_function_multiplication() {
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use parsing::SplitType;
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let values = HashMap::from([
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("cos(x)", vec!["cos(x)"]),
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("cos(", vec!["cos("]),
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("cos(x)sin(x)", vec!["cos(x)", "sin(x)"]),
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("aaaaaaaaaaa", vec!["aaaaaaaaaaa"]),
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("emax(x)", vec!["e", "max(x)"]),
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("x", vec!["x"]),
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("xxx", vec!["x", "x", "x"]),
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("sin(cos(x)x)", vec!["sin(cos(x)", "x)"]),
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("sin(x)*cos(x)", vec!["sin(x)", "cos(x)"]),
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("x*x", vec!["x", "x"]),
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("10*10", vec!["10", "10"]),
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("a1b2c3d4", vec!["a1b2c3d4"]),
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("cos(sin(x)cos(x))", vec!["cos(sin(x)", "cos(x))"]),
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("", Vec::new()),
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]);
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for (key, value) in values {
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assert_eq!(
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parsing::split_function(key, SplitType::Multiplication),
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value
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);
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}
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}
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#[test]
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fn split_function_terms() {
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use parsing::SplitType;
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let values = HashMap::from([
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(
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"cos(sin(x)cos(x))",
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vec!["cos(", "sin(", "x)", "cos(", "x))"],
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),
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("", Vec::new()),
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]);
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for (key, value) in values {
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assert_eq!(parsing::split_function(key, SplitType::Term), value);
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}
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}
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#[test]
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fn hint_tests() {
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{
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let hint = Hint::None;
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assert!(hint.is_none());
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assert!(!hint.is_some());
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assert!(!hint.is_single());
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}
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{
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let hint = Hint::Single("");
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assert!(!hint.is_none());
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assert!(hint.is_some());
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assert!(hint.is_single());
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}
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{
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let hint = Hint::Many(&[""]);
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assert!(!hint.is_none());
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assert!(hint.is_some());
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assert!(!hint.is_single());
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}
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}
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#[test]
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fn get_last_term() {
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let values = HashMap::from([
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("cos(x)", "x)"),
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("cos(", "cos("),
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("aaaaaaaaaaa", "aaaaaaaaaaa"),
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("x", "x"),
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("xxx", "x"),
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("x*x", "x"),
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("10*10", "10"),
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("sin(cos", "cos"),
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("exp(cos(exp(sin", "sin"),
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]);
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for (key, value) in values {
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assert_eq!(
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parsing::get_last_term(key.chars().collect::<Vec<char>>().as_slice()),
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Some(value.to_owned())
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);
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}
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}
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#[test]
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fn hint_accessor() {
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assert_eq!(Hint::Single("hint").many(), None);
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assert_eq!(Hint::Single("hint").single(), Some("hint"));
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assert_eq!(Hint::Many(&["hint", "hint2"]).single(), None);
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assert_eq!(
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Hint::Many(&["hint", "hint2"]).many(),
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Some(["hint", "hint2"].as_slice())
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);
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assert_eq!(Hint::None.single(), None);
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assert_eq!(Hint::None.many(), None);
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}
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