Add more utility procedures to small array

tests/core/build.bat

@@ -74,4 +74,9 @@ echo ---
 echo ---
 echo Running core:slice tests
 echo ---
-%PATH_TO_ODIN% run slice %COMMON% -out:test_core_slice.exe
+%PATH_TO_ODIN% run slice %COMMON% -out:test_core_slice.exe
+
+echo ---
+echo Running core:container tests
+echo ---
+%PATH_TO_ODIN% run container %COMMON% %COLLECTION% -out:test_core_container.exe

tests/core/container/test_core_small_array.odin

@@ -0,0 +1,56 @@
+package test_core_compress
+
+import "core:fmt"
+import "core:testing"
+import "core:container/small_array"
+import tc "tests:common"
+
+main :: proc() {
+    t := testing.T{}
+    test_small_array_removes(&t)
+    test_small_array_inject_at(&t)
+	tc.report(&t)
+}
+
+expect_equal :: proc(t: ^testing.T, the_slice, expected: []int, loc := #caller_location) {
+    _eq :: proc(a, b: []int) -> bool {
+        if len(a) != len(b) do return false
+        for a, i in a {
+            if b[i] != a do return false
+        }
+        return true
+    }
+    tc.expect(t, _eq(the_slice, expected), fmt.tprintf("Expected %v, got %v\n", the_slice, expected), loc)
+}
+
+@test
+test_small_array_removes :: proc(t: ^testing.T) {
+    array: small_array.Small_Array(10, int)
+    small_array.append(&array, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
+
+    small_array.ordered_remove(&array, 0)
+    expect_equal(t, small_array.slice(&array), []int { 1, 2, 3, 4, 5, 6, 7, 8, 9 })
+    small_array.ordered_remove(&array, 5)
+    expect_equal(t, small_array.slice(&array), []int { 1, 2, 3, 4, 5, 7, 8, 9 })
+    small_array.ordered_remove(&array, 6)
+    expect_equal(t, small_array.slice(&array), []int { 1, 2, 3, 4, 5, 7, 9 })
+    small_array.unordered_remove(&array, 0)
+    expect_equal(t, small_array.slice(&array), []int { 9, 2, 3, 4, 5, 7 })
+    small_array.unordered_remove(&array, 2)
+    expect_equal(t, small_array.slice(&array), []int { 9, 2, 7, 4, 5 })
+    small_array.unordered_remove(&array, 4)
+    expect_equal(t, small_array.slice(&array), []int { 9, 2, 7, 4 })
+}
+
+@test
+test_small_array_inject_at :: proc(t: ^testing.T) {
+    array: small_array.Small_Array(13, int)
+    small_array.append(&array, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
+
+    tc.expect(t, small_array.inject_at(&array, 0, 0), "Expected to be able to inject into small array")
+    expect_equal(t, small_array.slice(&array), []int { 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 })
+    tc.expect(t, small_array.inject_at(&array, 0, 5), "Expected to be able to inject into small array")
+    expect_equal(t, small_array.slice(&array), []int { 0, 0, 1, 2, 3, 0, 4, 5, 6, 7, 8, 9 })
+    tc.expect(t, small_array.inject_at(&array, 0, small_array.len(array)), "Expected to be able to inject into small array")
+    expect_equal(t, small_array.slice(&array), []int { 0, 0, 1, 2, 3, 0, 4, 5, 6, 7, 8, 9, 0 })
+}