diff --git a/tests/test_arrays.scad b/tests/test_arrays.scad
index 8b7e2c5..8e888eb 100644
--- a/tests/test_arrays.scad
+++ b/tests/test_arrays.scad
@@ -66,8 +66,76 @@ module test_reverse() {
 test_reverse();
 
 
-// TODO: list_remove()
-// TODO: list_insert()
+module test_deduplicate() {
+	assert(deduplicate([8,3,4,4,4,8,2,3,3,8,8]) == [8,3,4,8,2,3,8]);
+	assert(deduplicate(closed=true, [8,3,4,4,4,8,2,3,3,8,8]) == [8,3,4,8,2,3]);
+	assert(deduplicate("Hello") == ["H","e","l","o"]);
+	assert(deduplicate([[3,4],[7,2],[7,1.99],[1,4]],eps=0.1) == [[3,4],[7,2],[1,4]]);
+}
+test_deduplicate();
+
+
+module test_list_set() {
+	assert(list_set([2,3,4,5], 2, 21) == [2,3,21,5]);
+	assert(list_set([2,3,4,5], [1,3], [81,47]) == [2,81,4,47]);
+}
+test_list_set();
+
+
+module test_list_remove() {
+	assert(list_insert([3,6,9,12],1) == [3,9,12]);
+	assert(list_insert([3,6,9,12],[1,3]) == [3,9]);
+}
+test_list_remove();
+
+
+module test_list_remove_values() {
+	animals = ["bat", "cat", "rat", "dog", "bat", "rat"];
+	assert(list_remove_values(animals, "rat") == ["bat","cat","dog","bat","rat"]);
+	assert(list_remove_values(animals, "bat", all=true) == ["cat","rat","dog","rat"]);
+	assert(list_remove_values(animals, ["bat","rat"]) == ["cat","dog","bat","rat"]);
+	assert(list_remove_values(animals, ["bat","rat"], all=true) == ["cat","dog"]);
+	assert(list_remove_values(animals, ["tucan","rat"], all=true) == ["bat","cat","dog","bat"]);
+}
+test_list_remove_values();
+
+
+module test_list_insert() {
+	assert(list_insert([3,6,9,12],1,5) == [3,5,6,9,12]);
+	assert(list_insert([3,6,9,12],[1,3],[5,11]) == [3,5,6,9,11,12]);
+}
+test_list_insert();
+
+
+module test_bselect() {
+	assert(bselect([3,4,5,6,7], [false,false,false,false,false]) == []);
+	assert(bselect([3,4,5,6,7], [false,true,true,false,true]) == [4,5,7]);
+	assert(bselect([3,4,5,6,7], [true,true,true,true,true]) == [3,4,5,6,7]);
+}
+test_bselect();
+
+
+module test_bset() {
+	assert(list_bset([false,true,false,true,false], [3,4]) == [0,3,0,4,0]);
+	assert(list_bset([false,true,false,true,false], [3,4], dflt=1) == [1,3,1,4,1]);
+}
+test_bset();
+
+
+module test_list_increasing() {
+	assert(list_increasing([1,2,3,4]) == true);
+	assert(list_increasing([1,3,2,4]) == false);
+	assert(list_increasing([4,3,2,1]) == false);
+}
+test_list_increasing();
+
+
+module test_list_decreasing() {
+	assert(list_decreasing([1,2,3,4]) == false);
+	assert(list_decreasing([4,2,3,1]) == false);
+	assert(list_decreasing([4,3,2,1]) == true);
+}
+test_list_decreasing();
 
 
 module test_list_shortest() {
@@ -106,6 +174,16 @@ module test_list_fit() {
 test_list_fit();
 
 
+module test_idx() {
+	colors = ["red", "green", "blue", "cyan"];
+	assert([for (i=idx(colors)) i] == [0,1,2,3]);
+	assert([for (i=idx(colors,end=-2)) i] == [0,1,2]);
+	assert([for (i=idx(colors,start=1)) i] == [1,2,3]);
+	assert([for (i=idx(colors,start=1,end=-2)) i] == [1,2]);
+}
+test_idx();
+
+
 module test_enumerate() {
 	assert(enumerate(["a","b","c"]) == [[0,"a"], [1,"b"], [2,"c"]]);
 	assert(enumerate([[88,"a"],[76,"b"],[21,"c"]], idx=1) == [[0,"a"], [1,"b"], [2,"c"]]);
@@ -114,6 +192,9 @@ module test_enumerate() {
 test_enumerate();
 
 
+// TODO: Add tests for shuffle()
+
+
 module test_sort() {
 	assert(sort([7,3,9,4,3,1,8]) == [1,3,3,4,7,8,9]);
 	assert(sort(["cat", "oat", "sat", "bat", "vat", "rat", "pat", "mat", "fat", "hat", "eat"]) == ["bat", "cat", "eat", "fat", "hat", "mat", "oat", "pat", "rat", "sat", "vat"]);
@@ -174,6 +255,20 @@ module test_pair_wrap() {
 test_pair_wrap();
 
 
+module test_triplet() {
+	assert(triplet([3,4,5,6,7]) == [[3,4,5], [4,5,6], [5,6,7]]);
+	assert(triplet("ABCDE") == [["A","B","C"], ["B","C","D"], ["C","D","E"]]);
+}
+test_triplet();
+
+
+module test_triplet_wrap() {
+	assert(triplet_wrap([3,4,5,6]) == [[3,4,5], [4,5,6], [5,6,3], [6,3,4]]);
+	assert(triplet_wrap("ABCD") == [["A","B","C"], ["B","C","D"], ["C","D","A"], ["D","A","B"]]);
+}
+test_triplet_wrap();
+
+
 module test_zip() {
 	v1 = [1,2,3,4];
 	v2 = [5,6,7];
diff --git a/tests/test_math.scad b/tests/test_math.scad
index 776d048..35b9c45 100644
--- a/tests/test_math.scad
+++ b/tests/test_math.scad
@@ -13,6 +13,9 @@ module test_quant() {
 	assert(quant(3,3) == 3);
 	assert(quant(4,3) == 3);
 	assert(quant(7,3) == 6);
+	assert(quant([12,13,13.1,14,14.1,15,16],4) == [12,12,12,16,16,16,16])
+	assert(quant([9,10,10.4,10.5,11,12],3) == [9,9,9,12,12,12])
+	assert(quant([[9,10,10.4],[10.5,11,12]],3) == [[9,9,9],[12,12,12]])
 }
 test_quant();
 
@@ -28,6 +31,9 @@ module test_quantdn() {
 	assert(quantdn(3,3) == 3);
 	assert(quantdn(4,3) == 3);
 	assert(quantdn(7,3) == 6);
+	assert(quantdn([12,13,13.1,14,14.1,15,16],4) == [12,12,12,12,12,12,16])
+	assert(quantdn([9,10,10.4,10.5,11,12],3) == [9,9,9,9,9,12])
+	assert(quantdn([[9,10,10.4],[10.5,11,12]],3) == [[9,9,9],[9,9,12]])
 }
 test_quantdn();
 
@@ -43,6 +49,9 @@ module test_quantup() {
 	assert(quantup(3,3) == 3);
 	assert(quantup(4,3) == 6);
 	assert(quantup(7,3) == 9);
+	assert(quantup([12,13,13.1,14,14.1,15,16],4) == [12,16,16,16,16,16,16])
+	assert(quantup([9,10,10.4,10.5,11,12],3) == [9,12,12,12,12,12])
+	assert(quantup([[9,10,10.4],[10.5,11,12]],3) == [[9,12,12],[12,12,12]])
 }
 test_quantup();
 
@@ -120,6 +129,17 @@ module test_posmod() {
 test_posmod();
 
 
+module test_modang() {
+	assert(modang(-700,360) == 20)
+	assert(modang(-270,360) == 90)
+	assert(modang(-120,360) == -120)
+	assert(modang(120,360) == 120)
+	assert(modang(270,360) == -90)
+	assert(modang(700,360) == -20)
+}
+test_modang();
+
+
 module test_modrange() {
 	assert(modrange(-5,5,3) == [1,2]);
 	assert(modrange(-1,4,3) == [2,0,1]);
@@ -140,9 +160,19 @@ module test_sqr() {
 test_sqr();
 
 
+module test_log2() {
+	assert(log2(0.125) == -3);
+	assert(log2(16) == 4);
+	assert(log2(256) == 8);
+}
+test_log2();
+
+
+// TODO: Tests for rand_int()
 // TODO: Tests for gaussian_rand()
 // TODO: Tests for log_rand()
 
+
 module test_segs() {
 	assert(segs(50,$fn=8) == 8);
 	assert(segs(50,$fa=2,$fs=2) == 158);
@@ -235,6 +265,16 @@ module test_sum() {
 test_sum();
 
 
+module test_cumsum() {
+	assert(cumsum([1,1,1]) == [1,2,3]);
+	assert(cumsum([2,2,2]) == [2,4,6]);
+	assert(cumsum([1,2,3]) == [1,3,6]);
+	assert(cumsum([-2,-1,0,1,2]) == 0);
+	assert(cumsum([[1,2,3], [3,4,5], [5,6,7]]) == [[1,2,3],[4,6,8],[9,12,15]);
+}
+test_cumsum();
+
+
 module test_sum_of_squares() {
 	assert(sum_of_squares([1,2,3]) == 14);
 	assert(sum_of_squares([1,2,4]) == 21);
@@ -278,6 +318,28 @@ module test_mean() {
 test_mean();
 
 
+module test_det2() {
+	assert(det2([[6,-2], [1,8]]) == 50);
+	assert(det2([[4,7], [3,2]]) == -13);
+	assert(det2([[4,3], [3,4]]) == 7);
+}
+test_det2();
+
+
+module test_det3() {
+	M = [ [6,4,-2], [1,-2,8], [1,5,7] ];
+	assert(det3(M) == -334);
+}
+test_det3();
+
+
+module test_determinant() {
+	M = [ [6,4,-2,9], [1,-2,8,3], [1,5,7,6], [4,2,5,1] ];
+	assert(determinant(M) == 2267);
+}
+test_determinant();
+
+
 // Logic
 
 
diff --git a/tests/test_vectors.scad b/tests/test_vectors.scad
index 1edc7bf..02cf746 100644
--- a/tests/test_vectors.scad
+++ b/tests/test_vectors.scad
@@ -1,6 +1,25 @@
 include <BOSL2/std.scad>
 
 
+module test_is_vector() {
+	assert(is_vector([1,2,3]) == true);
+	assert(is_vector([[1,2,3]]) == false);
+	assert(is_vector(["foo"]) == false);
+	assert(is_vector([]) == false);
+	assert(is_vector(1) == false);
+	assert(is_vector("foo") == false);
+	assert(is_vector(true) == false);
+}
+test_is_vector();
+
+
+module test_add_scalar() {
+	assert(add_scalar([1,2,3],3) == [4,5,6]);
+	assert(add_scalar([[1,2,3],[3,4,5]],3) == [[4,5,6],[6,7,8]]);
+}
+test_add_scalar()
+
+
 module test_vmul() {
 	assert(vmul([3,4,5], [8,7,6]) == [24,28,30]);
 	assert(vmul([1,2,3], [4,5,6]) == [4,10,18]);