Improve tests in general.

Less spammy core tests: They don't print PASSes now, only logs and failures.

`core:image` and `core:encoding/xml` tests also find their assets relative to `ODIN_ROOT` now.

tests/core/compress/test_core_compress.odin

@@ -30,18 +30,15 @@ when ODIN_TEST {
 	log     :: testing.log
 } else {
 	expect  :: proc(t: ^testing.T, condition: bool, message: string, loc := #caller_location) {
-		fmt.printf("[%v] ", loc)
 		TEST_count += 1
 		if !condition {
 			TEST_fail += 1
-			fmt.println(message)
+			fmt.printf("[%v] %v\n", loc, message)
 			return
 		}
-		fmt.println(" PASS")
 	}
 	log     :: proc(t: ^testing.T, v: any, loc := #caller_location) {
-		fmt.printf("[%v] ", loc)
+		fmt.printf("[%v] LOG:\n\t%v\n", loc, v)
-		fmt.printf("log: %v\n", v)
 	}
 }
 
@@ -51,7 +48,7 @@ main :: proc() {
 	zlib_test(&t)
 	gzip_test(&t)
 
-	fmt.printf("%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
+	fmt.printf("\n%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
 }
 
 @test

tests/core/crypto/test_core_crypto.odin

@@ -45,18 +45,15 @@ when ODIN_TEST {
 	log     :: testing.log
 } else {
 	expect  :: proc(t: ^testing.T, condition: bool, message: string, loc := #caller_location) {
-        fmt.printf("[%v] ", loc)
 		TEST_count += 1
 		if !condition {
 			TEST_fail += 1
-            fmt.println(message)
+			fmt.printf("[%v] %v\n", loc, message)
 			return
 		}
-        fmt.println(" PASS")
 	}
 	log     :: proc(t: ^testing.T, v: any, loc := #caller_location) {
-        fmt.printf("[%v] ", loc)
+		fmt.printf("[%v] LOG:\n\t%v\n", loc, v)
-        fmt.printf("log: %v\n", v)
 	}
 }
 
@@ -124,7 +121,7 @@ main :: proc() {
 
 	bench_modern(&t)
 
-    fmt.printf("%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
+	fmt.printf("\n%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
 }
 
 TestHash :: struct {

tests/core/encoding/json/test_core_json.odin

@@ -12,18 +12,15 @@ when ODIN_TEST {
 	log     :: testing.log
 } else {
 	expect  :: proc(t: ^testing.T, condition: bool, message: string, loc := #caller_location) {
-		fmt.printf("[%v] ", loc)
 		TEST_count += 1
 		if !condition {
 			TEST_fail += 1
-			fmt.println(message)
+			fmt.printf("[%v] %v\n", loc, message)
 			return
 		}
-		fmt.println(" PASS")
 	}
 	log     :: proc(t: ^testing.T, v: any, loc := #caller_location) {
-		fmt.printf("[%v] ", loc)
+		fmt.printf("[%v] LOG:\n\t%v\n", loc, v)
-		fmt.printf("log: %v\n", v)
 	}
 }
 
@@ -33,7 +30,7 @@ main :: proc() {
 	parse_json(&t)
 	marshal_json(&t)
 
-	fmt.printf("%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
+	fmt.printf("\n%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
 }
 
 @test

tests/core/encoding/xml/test_core_xml.odin

@@ -177,18 +177,15 @@ when ODIN_TEST {
 	log     :: testing.log
 } else {
 	expect  :: proc(t: ^testing.T, condition: bool, message: string, loc := #caller_location) {
-        fmt.printf("[%v] ", loc)
 		TEST_count += 1
 		if !condition {
 			TEST_fail += 1
-            fmt.println(message)
+			fmt.printf("[%v] %v\n", loc, message)
 			return
 		}
-        fmt.println(" PASS")
 	}
 	log     :: proc(t: ^testing.T, v: any, loc := #caller_location) {
-        fmt.printf("[%v] ", loc)
+		fmt.printf("[%v] LOG:\n\t%v\n", loc, v)
-        fmt.printf("log: %v\n", v)
 	}
 }
 
@@ -293,7 +290,7 @@ run_tests :: proc(t: ^testing.T) {
 
 	for test in TESTS {
 		path := test_file_path(test.filename)
-		printf("\nTrying to parse %v\n\n", path)
+		log(t, fmt.tprintf("Trying to parse %v", path))
 
 		doc, err := xml.parse(path, test.options, Silent)
 		defer xml.destroy(doc)
@@ -338,5 +335,5 @@ main :: proc() {
 		}
 	}	
 
-    fmt.printf("%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
+	fmt.printf("\n%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
 }

tests/core/hash/test_core_hash.odin

@@ -14,18 +14,15 @@ when ODIN_TEST {
 	log     :: testing.log
 } else {
 	expect  :: proc(t: ^testing.T, condition: bool, message: string, loc := #caller_location) {
-		fmt.printf("[%v] ", loc)
 		TEST_count += 1
 		if !condition {
 			TEST_fail += 1
-			fmt.println(" FAIL:", message)
+			fmt.printf("[%v] %v", loc, message)
 			return
 		}
-		fmt.println(" PASS")
 	}
 	log     :: proc(t: ^testing.T, v: any, loc := #caller_location) {
-		fmt.printf("[%v] ", loc)
+		fmt.printf("[%v] LOG:\n\t%v\n", loc, v)
-		fmt.printf("log: %v\n", v)
 	}
 }
 
@@ -34,7 +31,7 @@ main :: proc() {
 	test_benchmark_runner(&t)
 	test_xxhash_vectors(&t)
 	test_crc64_vectors(&t)
-	fmt.printf("%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
+	fmt.printf("\n%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
 }
 
 /*

tests/core/image/test_core_image.odin

@@ -26,7 +26,7 @@ import "core:time"
 import "core:runtime"
 
 WRITE_PPM_ON_FAIL     :: #config(WRITE_PPM_ON_FAIL, false)
-TEST_SUITE_PATH   :: "assets/PNG"
+TEST_FILE_PATH_PREFIX :: "tests/core/assets/PNG"
 
 TEST_count := 0
 TEST_fail  := 0
@@ -36,27 +36,38 @@ when ODIN_TEST {
 	log     :: testing.log
 } else {
 	expect  :: proc(t: ^testing.T, condition: bool, message: string, loc := #caller_location) {
-        fmt.printf("[%v] ", loc)
 		TEST_count += 1
 		if !condition {
 			TEST_fail += 1
-            fmt.println(message)
+			fmt.printf("[%v] %v\n", loc, message)
 			return
 		}
-        fmt.println(" PASS")
 	}
 	log     :: proc(t: ^testing.T, v: any, loc := #caller_location) {
-        fmt.printf("[%v] ", loc)
+		fmt.printf("[%v] LOG:\n\t%v\n", loc, v)
-        fmt.printf("log: %v\n", v)
 	}
 }
+
 I_Error :: image.Error
 
 main :: proc() {
 	t := testing.T{}
 	png_test(&t)
 
-	fmt.printf("%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
+	fmt.printf("\n%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
+}
+
+test_file_path :: proc(filename: string, extension := "png") -> (path: string) {
+
+	path = fmt.tprintf("%v%v/%v.%v", ODIN_ROOT, TEST_FILE_PATH_PREFIX, filename, extension)
+	temp := transmute([]u8)path
+
+	for r, i in path {
+		if r == '\\' {
+			temp[i] = '/'
+		}
+	}
+	return path
 }
 
 PNG_Test :: struct {
@@ -1461,7 +1472,7 @@ run_png_suite :: proc(t: ^testing.T, suite: []PNG_Test) -> (subtotal: int) {
 	context = runtime.default_context()
 
 	for file in suite {
-		test_file := fmt.tprintf("%v/%v.png", TEST_SUITE_PATH, file.file)
+		test_file := test_file_path(file.file)
 
 		img: ^png.Image
 		err: png.Error

tests/core/odin/test_parser.odin

@@ -14,30 +14,25 @@ when ODIN_TEST {
 	log     :: testing.log
 } else {
 	expect  :: proc(t: ^testing.T, condition: bool, message: string, loc := #caller_location) {
-        fmt.printf("[%v] ", loc)
 		TEST_count += 1
 		if !condition {
 			TEST_fail += 1
-            fmt.println(message)
+			fmt.printf("[%v] %v\n", loc, message)
 			return
 		}
-        fmt.println(" PASS")
 	}
 	log     :: proc(t: ^testing.T, v: any, loc := #caller_location) {
-        fmt.printf("[%v] ", loc)
+		fmt.printf("[%v] LOG:\n\t%v\n", loc, v)
-        fmt.printf("log: %v\n", v)
 	}
 }
 
-
 main :: proc() {
 	t := testing.T{}
 	test_parse_demo(&t)
 
-    fmt.printf("%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
+	fmt.printf("\n%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
 }
 
-
 @test
 test_parse_demo :: proc(t: ^testing.T) {
 	pkg, ok := parser.parse_package_from_path("examples/demo")

tests/core/strings/test_core_strings.odin

@@ -12,18 +12,15 @@ when ODIN_TEST {
 	log     :: testing.log
 } else {
 	expect  :: proc(t: ^testing.T, condition: bool, message: string, loc := #caller_location) {
-        fmt.printf("[%v] ", loc)
 		TEST_count += 1
 		if !condition {
 			TEST_fail += 1
-            fmt.println(message)
+			fmt.printf("[%v] %v\n", loc, message)
 			return
 		}
-        fmt.println(" PASS")
 	}
 	log     :: proc(t: ^testing.T, v: any, loc := #caller_location) {
-        fmt.printf("[%v] ", loc)
+		fmt.printf("[%v] LOG:\n\t%v\n", loc, v)
-        fmt.printf("log: %v\n", v)
 	}
 }
 
@@ -34,7 +31,7 @@ main :: proc() {
 	test_index_any_small_string_found(&t)
 	test_index_any_larger_string_found(&t)
 
-    fmt.printf("%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
+	fmt.printf("\n%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
 }
 
 @test